| IYODA Tomokazu |  |
| Faculty of Science and Engineering Department of Chemical Engineering and Materials Science | |
| Professor |
Last Updated :2024/09/21
Researcher Profile and Settings
researchmap
Research funding number
90168534Research Interests
Research Areas
Research Experience
- Tokyo Institute of Technology, Institute of Innovative Research, 2016 - 2017
- Japan Science and Technology Agency, 2010 - 2017
- - 同志社大学ハリス理化学研究所 専任研究所員（教授）, 2017 -
- Tokyo Institute of Technology, Chemical Resources Laboratory, 2002 - 2016
- Tokyo Metropolitan University, Faculty of Engineering, 1996 - 2002
- （財）神奈川科学技術アカデミー, 1994 - 1996
- 米国アルゴンヌ国立研究所化学科 研究員, 1991 - 1993
- Kyoto University, Graduate School of Engineering, Department of Molecular Engineering, 1984 - 1991
- 橋本「光機能変換材料」プロジェクト 副室長, -
Degree
Association Memberships
Awards
Published Papers
- Tunable Thermal Switch via Order–Order Transition in Liquid Crystalline Block Copolymer
Takafumi Ishibe; Tatsuya Kaneko; Yuto Uematsu; Hideo Sato-Akaba; Motonori Komura; Tomokazu Iyoda; Yoshiaki Nakamura
Nano Letters, American Chemical Society (ACS), 22(15) 6105 - 6111, 10 Aug. 2022, Scientific journal - Self-template–assisted micro-phase segregation in blended liquid-crystalline block copolymers films toward three-dimensional structures
Yusuke Hibi; Yuki Oguchi; Yuta Shimizu; Kayoko Hashimoto; Katsuya Kondo; Tomokazu Iyoda
Proceedings of the National Academy of Sciences, Proceedings of the National Academy of Sciences, 117(35) 21070 - 21078, Sep. 2020, Scientific journal - Synthesis of well‐defined block copolymer composed of flexible amphiphilic poly(ethylene glycol) and hydrophobic liquid crystalline segments by living coordination polymerization of allene derivatives and its application to thin film with perpendicularly oriented cylindrical nanostructure
Koyuki Sakai; Hiroki Nishiyama; Shinsuke Inagi; Ikuyoshi Tomita; Yusuke Hibi; Motonori Komura; Keiji Nose; Tomokazu Iyoda
Journal of Polymer Science Part A: Polymer Chemistry, Wiley, 57(24), 15 Dec. 2019, Scientific journal - Terahertz emission from gold nanorods irradiated by ultrashort laser pulses of different wavelengths
Keisuke Takano; Motoki Asai; Kosaku Kato; Hideaki Komiyama; Akihisa Yamaguchi; Tomokazu Iyoda; Yuzuru Tadokoro; Makoto Nakajima; Michael I. Bakunov
Scientific Reports, 9(1) 3280 , 01 Dec. 2019, Scientific journal - Ice/Salt‐Assisted Synthesis of Ultrathin Two‐Dimensional Micro/Mesoporous Iron and Nitrogen Co‐Doped Carbon as an Efficient Electrocatalyst for Oxygen Reduction
Hanyu Li; Zhengping Zhang; Tomokazu Iyoda; Meiling Dou; Feng Wang
Chemistry – A European Journal, Wiley, 25(22) 5768 - 5776, 17 Apr. 2019, Scientific journal - Expression of various polarization effects by using Spirulina-templated metal μcoils at the terahertz frequency region
Takashi Notake; Kaori Kamata; Tomokazu Iyoda; Chiko Otani; Hiroaki Minamide
Japanese Journal of Applied Physics, IOP Publishing, 58(3) 032007 - 032007, 01 Mar. 2019, Scientific journal - Vibrational Cooling in Oligomeric Viologens of Different Sizes and Topologies
Mengdi Liu; Takehiro Kawauchi; Tomokazu Iyoda; Piotr Piotrowiak
Journal of Physical Chemistry B, American Chemical Society, 123(8) 1847 - 1854, 28 Feb. 2019, Scientific journal - Vibrational Cooling in Oligomeric Viologens of Different Size and Topology
Mengdi Liu; Takehiro Kawauchi; Tomokazu Iyoda; Piotr Piotrowiak
The Journal of Physical Chemistry B, 123 1847 - 1854, 2019, Scientific journal - Identification of Short- and Long-Wavelength Emitting Chlorophylls in Cyanobacterial Photosystem I by Plasmon-Enhanced Single-Particle Spectroscopy at Room Temperature
Soya Hatazaki; Dharmendar Kumar Sharma; Shuzo Hirata; Keiji Nose; Tomokazu Iyoda; Adrian Kölsch; Heiko Lokstein; Martin Vacha
The Journal of Physical Chemistry Letters, AMER CHEMICAL SOC, 9(22) 6669 - 6675, Nov. 2018, Scientific journal - Electrostatic Repulsion-Induced Desorption of Dendritic Viologen-Arranged Molecules Anchored on a Gold Surface through a Gold-Thiolate Bond Leading to a Tunable Molecular Template
Takehiro Kawauchi; Takahiro Kojima; Hiroshi Sakaguchi; Tomokazu Iyoda
Langmuir, American Chemical Society, 34(22) 6420 - 6427, 05 Jun. 2018, Scientific journal - Excited State Behavior of Single Strand and Bulk P3HT in Contact with a Au-Nanowire Array
Mengdi Liu; Shuzo Hirata; Tomokazu Iyoda; Martin Vacha; Piotr Piotrowiak
J. Phys. Chem. C, 122(14) 7925 - 7933, Mar. 2018 - Egg white-based strong hydrogel via ordered protein condensation
Tatsuya Nojima; Tomokazu Iyoda
NPG Asia Mater, 10 e460 , Jan. 2018 - Effects of electrolytes on redox potentials through ion pairing
Matthew J. Bird; Tomokazu Iyoda; Nicholas Bonura; Jin Bakalis; Abram J. Ledbetter; John R. Miller
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, ELSEVIER SCIENCE SA, 804 107 - 115, Nov. 2017, Scientific journal - High-space resolution imaging plate analysis of extreme ultraviolet (EUV) light from tin laser-produced plasmas
Christopher S. A. Musgrave; Takehiro Murakami; Teruyuki Ugomori; Kensuke Yoshida; Shinsuke Fujioka; Hiroaki Nishimura; Hironori Atarashi; Tomokazu Iyoda; Keiji Nagai
REVIEW OF SCIENTIFIC INSTRUMENTS, AMER INST PHYSICS, 88(3), Mar. 2017, Scientific journal - Weak visible light (-mW/cm2) organophotocatalysis for mineralization of amine, thiol and aldehyde by biphasic cobalt phthalocyanine/fullerene nanocomposites prepared by wet process
Arunachalam Prabhakarn; Zhang Shuai; Abe Toshiyuki; Komura Motonori; Iyoda Tomokazu; Nagai Keiji
Applied Catalysis. B: Environmental, 193 240‐247 , 15 Sep. 2016 - Synthesis of Multiarmed Thienylene-Tetrafluorophenylene Alternating Copolymers under Transition-Metal-Free Conditions
Takanobu Sanji; Junko Kakinuma; Tomokazu Iyoda
MACROMOLECULES, AMER CHEMICAL SOC, 49(18) 6761 - 6767, Sep. 2016, Scientific journal - On the Lewis base-promoted alkynylation of electron-deficient fluorobenzenes with trimethylsilylacetylenes
Takanobu Sanji; Satoru Watanabe; Tomokazu Iyoda
TETRAHEDRON LETTERS, PERGAMON-ELSEVIER SCIENCE LTD, 57(17) 1921 - 1924, Apr. 2016, Scientific journal - A fast controlled synthesis of poly(p-phenyleneethynylene)s under transition-metal-free conditions
Asahi Motoshige; Junko Kakinuma; Tomokazu Iyoda; Takanobu Sanji
POLYMER CHEMISTRY, ROYAL SOC CHEMISTRY, 7(13) 2323 - 2328, 2016, Scientific journal - Transition-metal-free controlled polymerization of 2-polyfluorophenyl-5-trimethylsilylthiophenes: the substituent impact of fluorine
Takanobu Sanji; Keiji Nose; Junko Kakinuma; Tomokazu Iyoda
POLYMER CHEMISTRY, ROYAL SOC CHEMISTRY, 7(46) 7116 - 7125, 2016, Scientific journal - Microwave-Assisted Synthesis of Dendritic Viologen-Arranged Molecules with an omega-Mercaptoalkyl Group and Their Self-Assembled Monolayers Complexed with Various Anions
Kawauchi, Takehiro; Oguchi, Yuki; Sawayama, Jun; Nagai, Keiji; Iyoda, Tomokazu
MACROMOLECULES, 48(22) 8090 - 8097, Nov. 2015 - Synthesis and microphase-separated nanostructures of P4VP-based amphiphilic liquid-crystalline block copolymer
Komiyama Hideaki; Nishiyama Hiroki; Sawayama Jun; Iyoda Tomokazu; Sanji Takanobu
POLYMER JOURNAL, Nature Publishing Group, 47(8) 571 - 575, Aug. 2015 - Synthesis and self-assembly of phthalocyanine-tethered block copolymers
AIMI JUNKO; KOMURA MOTONORI; IYODA TOMOKAZU; SAEKI AKINORI; SEKI SHU; TAKEUCHI MASAYUKI; NAKANISHI TAKASHI
J Mater Chem C Mater Opt Magn Electron Devices, 3(11) 2484 - 2490, 21 Mar. 2015 - Orientation Control of Microphase Separated Nanocylinders in Confined Volume Fabricated by Inkjet Printing
SATO HIROYUKI; YAMASHITA NANAE; IYODA TOMOKAZU; KOMURA MOTONORI
Trans Mater Res Soc Jpn, The Materials Research Society of Japan, 39(2) 165 - 168, Jun. 2014 - Surface-Assisted Unidirectional Orientation of ZnO Nanorods Hybridized with Nematic Liquid Crystals
Kubo Shoichi; Taguchi Rei; Hadano Shingo; Narita Mamiko; Watanabe Osamu; Iyoda Tomokazu; Nakagawa Masaru
ACS APPLIED MATERIALS & INTERFACES, 6(2) 811 - 818, 22 Jan. 2014 - Nano-Level Surface Processing of Fine Particles by Cavitation to Improve the Photocatalytic Properties of Titanium Oxide
Toshihiko Yoshimura; Kentaro Shiraishi; Tatsuhiro Takeshima; Motonori Komura; Tomokazu Iyoda
Nanoscience & Nanotechnology-Asia, 4 69 - 78, 2014 - Directed self-assembly of nematic liquid crystalline polymers on a rubbed polyimide alignment layer
Kubo S; Kobayashi S; Hadano S; Komura M; Iyoda T; Nakagawa M
Japanese Journal of Applied Physics, Institute of Physics, 53(6) 06JC04 , 2014 - Liquid Crystallinity of Random Copolymers of Polymethacrylates Containing Biphenyl Moieties Synthesized by Atom Transfer Radical Polymerization
Taguchi Rei; Kubo Shoichi; Hadano Shingo; Iyoda Tomokazu; Nakagawa Masaru
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 579(1) 30 - 33, 01 Sep. 2013 - Multilayerization of Organophotocatalyst Films that Efficiently Utilize Natural Sunlight in a One-Pass-Flow Water Purification System
Keiji Nagai; Yuzuri Yasuda; Tomokazu Iyoda; Toshiyuki Abe
ACS SUSTAINABLE CHEMISTRY & ENGINEERING, AMER CHEMICAL SOC, 1(8) 1033 - 1039, Aug. 2013, Scientific journal - HEXAGONALLY ARRANGED NANOPORE FILM FABRICATED VIA SELECTIVE ETCHING BY 172-nm VACUUM ULTRAVIOLET LIGHT IRRADIATION
KOMURA MOTONORI; KAMATA KAORI; IYODA TOMOKAZU; NAGAI KEIJI
Fusion Sci Technol, 63(2) 257 - 264, Mar. 2013 - Photoelectrode Characteristics of Partially Hydrolyzed Aluminum Phthalocyanine Chloride/Fullerene C-60 Composite Nanoparticles Working in a Water Phase
Zhang, Shuai; Abe, Toshiyuki; Iyoda, Tomokazu; Nagai, Keiji
MOLECULES, 17(9) 10801 - 10815, Sep. 2012 - Photocatalytic decomposition of N-methyl-2-pyrrolidone, aldehydes, and thiol by biphase and p/n junction-like organic semiconductor composite nanoparticles responsive to nearly full spectrum of visible light
Zhang, Shuai; Arunachalam, Prabhakarn; Abe, Toshiyuki; Iyoda, Tomokazu; Nagai, Keiji
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 244 18 - 23, Sep. 2012 - Perpendicularly Oriented SiO2 Nanopillar Array on SiO2 Adhesive Layer
YAMASHITA NANAE; KOMIYAMA HIDEAKI; ZHAO YONGBIN; KOMURA MOTONORI; IYODA TOMOKAZU; NAGAI KEIJI
Trans Mater Res Soc Jpn, 37(3) 421 - 424, Sep. 2012 - Large-area Fabrication of Free-Standing Thick Membrane with Microphase-Separated Cylindrical Nanostructure
MIYATAKE MAMI; KIMURA TARO; KOMIYAMA HIDEAKI; KOMURA MOTONORI; IYODA TOMOKAZU
Trans Mater Res Soc Jpn, 37(3) 409 - 412, Sep. 2012 - Site-Selective Self-Assembly of Fullerene Nanoparticles on Amphiphilic Block Copolymer Thin Film from Water Suspension
YANG TIANYU; ZHANG SHUAI; KOMURA MOTONORI; IYODA TOMOKAZU; NAGAI KEIJI
Jpn J Appl Phys, The Japan Society of Applied Physics, 51(7,Issue 1) 070201.1-070201.3 - 070201-3, 25 Jul. 2012 - Perpendicularly Oriented Cylinder Nanostructure of Liquid Crystalline Block Copolymer Film on Si Substrate with Various Surface Wettability
KOMIYAMA Hideaki; IYODA Tomokazu; KAMATA Kaori
Chemistry Letters, The Chemical Society of Japan, 41(1) 110 - 112, 05 Jan. 2012 - Synthesis and characterization of Biphasic Vanadyl phthalocyanine and C60 composite nanoparticles through a reprecipitation process
Prabhakarn Arunachalam; Zhang Shuai; Abe Toshiyuki; Iyoda Tomokazu; Nagai Keiji
Trans. Mat. Res. Soc. Japan, The Materials Research Society of Japan, 37(2) 205 - 208, 2012 - Solvent induced formation of an ordered nanorod array of gold/polymer composite by block copolymer film templating
ZOU WEI; WANG YING; WANG ZHIHONG; ZHOU AIJUN; LI JINGZE; CHANG AIMIN; WANG QI; KOMURA MOTONORI; ITO KAORI; IYODA TOMOKAZU
Nanotechnology, 33, 22(33) 335301:1-335301:6 , 19 Aug. 2011 - Photoelectrochemical and Photocatalytic Properties of Biphasic Organic p- and n-Type Semiconductor Nanoparticles Fabricated by a Reprecipitation Process
Zhang, Shuai; Sakai, Ryohei; Abe, Toshiyuki; Iyoda, Tomokazu; Norimatsu, Takayoshi; Nagai, Keiji
ACS APPLIED MATERIALS & INTERFACES, 3(6) 1902 - 1909, Jun. 2011 - Microphase-separated block copolymer film anchored on ITO substrate with newly designed self-assembled monolayer
Goda Takenori; Hadano Shingo; Iyoda Tomokazu
MRS Proceedings, 1302 mrsf10-1302-w06 - 09, Mar. 2011, International conference proceedings - Nanostructure dependent surface energy of silica nanorod arrays through block copolymer templating processes
Yongbin Zhao; Aihua Chen; Tomokazu Iyoda
Materials Research Society Symposium Proceedings, 1312 449 - 454, 2011, International conference proceedings - Polypyrrole nanowire array with high aspect ratio fabricated by block-copolymer-templated electropolymerization
Hideaki Komiyama; Tomokazu Iyoda; Kaori Kamata
Materials Research Society Symposium Proceedings, 1312 443 - 448, 2011, International conference proceedings - Organic Semiconductor Nanoparticles with Heterojunctions Composed of Fullerene C60 and Zinc Phthalocyanine and Their Application to Visible-Light-Responsive Photocatalysts
Zhang Shuai; Abe Toshiyuki; Iyoda Tomokazu; Norimatsu Takayoshi; Nagai Keiji
Trans. Mat. Res. Soc. Japan, The Materials Research Society of Japan, 36(2) 177 - 181, 2011 - MONOLITHIC AND LOW-DENSITY (<= 50 mg/cm(3)) METAL OXIDES FABRICATED USING ELECTROSPINNING: VANADIUM OXIDE AND COPPER OXIDE EXAMPLES
Keiji Nagai; Kohei Miyamoto; Tomokazu Iyoda; Cao Pan; Zhongze Gu
FUSION SCIENCE AND TECHNOLOGY, AMER NUCLEAR SOC, 59(1) 216 - 220, Jan. 2011, Scientific journal - Self-organization and Self-repair of a Two-dimensional Nanoarray of Ge Quantum Dots Epitaxially Grown on Si Substrates using Ultrathin SiO_2 Films
NAKAMURA Yoshiaki; MURAYAMA Akiyuki; WATANABE Ryoko; IYODA Tomokazu; ICHIKAWA Masakazu
J. Surf. Sci. Soc. Jpn., The Surface Science Society of Japan, 31(12) 626 - 631, 10 Dec. 2010 - Phase-selective staining of metal salt for scanning electron microscopy imaging of block copolymer film
Jing Ze Li; Ying Wang; Zhi Hong Wang; Di Mei; Wei Zou; Ai Min Chang; Qi Wang; Motonori Komura; Kaori Ito; Tomokazu Iyoda
ULTRAMICROSCOPY, ELSEVIER SCIENCE BV, 110(10) 1338 - 1342, Sep. 2010, Scientific journal - Self-organized formation and self-repair of a two-dimensional nanoarray of Ge quantum dots epitaxially grown on ultrathin SiO2-covered Si substrates
Yoshiaki Nakamura; Akiyuki Murayama; Ryoko Watanabe; Tomokazu Iyoda; Masakazu Ichikawa
Nanotechnology, 21 095305, Feb. 2010, Scientific journal - A Simple and Convenient Method to Fabricate Hexagonally Ordered Gold Nanoparticle Arrays Using Diblock Copolymer Micelle Template
WATANABE SHIGERU; NAKANO SHIN; IMAI CHIE; IMAI CHIE; LASKAR INAMUR R; KOMURA TOMONORI; HADANO SHINGO; IYODA TOMOKAZU
Chem Lett, 39(8) 902-904 (J-STAGE) - 904, 2010, Scientific journal - Thermal nanoimprint of a poly(styrene) and poly(4-vinylpyridine) double-layer thin film and visualization determination of its internal structure by transimission electron microscopy
Masaru Nakagawa; Noriyoshi Kamata; Tomokazu Iyoda; Shinji Matsui
Japanese Journal of Applied Physics, INSTITUTE OF PURE AND APPLIED PHYSICS, 48(6) 06FH12 - 06FH12-6, Jun. 2009, Scientific journal - Tuning surface interactions to control shape and array behavior of diblock copolymer micelles on a silicon substrate
I. R. Laskar; S. Watanabe; M. Hada; H. Yoshida; J. Li; T. Iyoda
Surface Science, 603(4) 625 - 631, 15 Feb. 2009, Scientific journal - Nanostructured Titanium Oxide Fabricated via Block Copolymer Template
WATANABE Ryoko; IYODA Tomokazu; ITO Kaori
Electrochemistry, The Electrochemical Society of Japan, 77(3) 214 - 218, 2009 - Magnetic property and crystallinity of a Ni-P hollow microfiber affected by immersion in a NaOH aqueous solution
Hirokazu Oda; Tomokazu Iyoda; Masaru Nakagawa
Transactions of the Materials Research Society of Japan, 33(1) 153 - 156, Dec. 2008, Scientific journal - AFM Cross-Sectional Imaging of Perpendicularly Oriented Nanocylinder Structures of Microphase-Separated Block Copolymer Films by Crystal-like Cleavage
KOMURA MOTONORI; IYODA TOMOKAZU
Macromolecules, 40(12) 4106 - 4108, 12 Jun. 2007 - ^<57>Fe Mossbauer, UV-visible, and FT-IR Study on Photoinduced Spin Transition of Fe^
-Triazole Complex
MITSUOKA Tadashi; NAKAGAWA Masaru; IYODA Tomokazu; EINAGA Yasuaki
Journal of Nuclear and Radiochemical Sciences, The Japan Society of Nuclear and Radiochemical Sciences, 8(1) 1 - 3, 01 Jun. 2007 - Photochromism induced magnetization changes in Prussian Blue ultrathin films fabricated into the Langmuir-Blodgett films composed of an amphiphilic azobenzene and a deoxyribonucleic acid
Yamamoto Takashi; Umemura Yasushi; Nakagawa Masaru; Iyoda Tomokazu; Einaga Yasuaki
Thin Solid Films, 515(13) 5476 - 5483, 07 May 2007 - Photoinduced nanoscale cooperative motion in a well-defined triblock copolymer.
Haifeng Yu; Sadayuki Asaoka; Atsushi Shishido; Tomokazu Iyoda; Tomiki Ikeda
Small (Weinheim an der Bergstrasse, Germany), 3(5) 768 - 71, May 2007, Scientific journal - Photoinduced nanoscale cooperative motion in a well-defined triblock copolymer
Haifeng Yu; Sadayuki Asaoka; Atsushi Shishido; Tomokazu Iyoda; Tomiki Ikeda
SMALL, WILEY-V C H VERLAG GMBH, 3(5) 768 - 771, May 2007, Scientific journal - Photoinduced nanoscale cooperative motion in a well-defined triblock copolymer
Haifeng Yu; Sadayuki Asaoka; Atsushi Shishido; Tomokazu Iyoda; Tomiki Ikeda
Small, 3(5) 768 - 771, May 2007, Scientific journal - Template- and vacuum-ultraviolet-assisted fabrication of a Ag-nanoparticle array on flexible and rigid substrates
Jingze Li; Kaori Kamata; Shigeru Watanabe; Tomokazu Iyoda
ADVANCED MATERIALS, WILEY-V C H VERLAG GMBH, 19(9) 1267 - +, May 2007, Scientific journal - Reversible photoswitching of feromagnetic FePt nanoparticles at room temperature
Masayuki Suda; Masaru Nakagawa; Tomokazu Iyoda; Yasuaki Einaga
Journal of the American Chemical Society, 129(17) 5538 - 5543, Apr. 2007, Scientific journal - Effect of lithium trifluoromethanesulfonate on the phase diagram of a liquid-crystalline amphiphilic diblock copolymer
Takeshi Yamada; Jingze Li; Chinami Koyanagi; Tomokazu Iyoda; Hirohisa Yoshida
Journal of Applied Crystallography, International Union of Crystallography ({IUCr}), 40(s1) s585 , Apr. 2007 - Control of regular nanostructures self-assembled in an amphiphilic diblock liquid-crystal line copolymer
Yu Haifeng; Li Jingze; Shishido Atsushi; Iyoda Tomokazu; Ikeda Tomiki
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, TAYLOR & FRANCIS LTD, 478 1027 - 1037, 2007, Scientific journal - Photoinduced alignment and multi-processes of refractive-index gratings in pre-irradiated films of an azobenzene-containing liquid-crystalline polymer
Yu Haifeng; Shishido Atsushi; Iyoda Tomokazu; Ikeda Tomiki
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 470 71 - 81, 2007 - Stable macroscopic nanocylinder arrays in an amphiphilic diblock liquid-crystalline copolymer with successive hydrogen bonds
Yu Haifeng; Shishido Atsushi; Li Jingze; Kamata Kaori; Iyoda Tomokazu; Ikeda Tomiki
JOURNAL OF MATERIALS CHEMISTRY, ROYAL SOC CHEMISTRY, 17(33) 3485 - 3488, 2007, Scientific journal - Roll-to-roll processable PEO-LC block copolymer template films with normally oriented nanocylinder array structures
T. Iyoda; K. Kamata; R. Watanabe; M. Komura; H. Ochiai
MICROPROCESSES AND NANOTECHNOLOGY 2007, DIGEST OF PAPERS, JAPAN SOCIETY APPLIED PHYSICS, 460 - +, 2007, International conference proceedings - Site-specific recognition of nanophase-separated surfaces of amphiphilic block copolymers by hydrophilic and hydrophobic gold nanoparticles.
Shigeru Watanabe; Ryutaro Fujiwara; Masanori Hada; Yuka Okazaki; Tomokazu Iyoda
Angewandte Chemie (International ed. in English), 46(7) 1120 - 3, 2007, Scientific journal - Photo-controlled magnetization of CdS-modified Prussian blue nanoparticles
Minori Taguchi; Ichizo Yagi; Masaru Nakagawa; Tomokazu Iyoda; Yasuaki Eigana
Journal of the American Chemical Society, 128(33) 10978 - 10982, Aug. 2006, Scientific journal - Photocontrol of zeta-potential of poly(styrene) microspheres prepared by soap-free emulsion copolymerization
Hiroaki Kishimoto; Masaru Watanabe; Tomokazu Iyoda; Katsutoshi Nagai; Masaru Nakagawa
Chemistry Letters, 35(6) 598 - 599, Jun. 2006, Scientific journal - Alignment of Self-Organized Nanocylinder Array Structure in Amphiphilic Liquid Crystalline Block Copolymer Film
WATANABE KAZUHITO; WATANABE RYOKO; AOKI DAISUKE; SHODA SATOKO; KOMURA MOTONORI; KAMATA KAORI; IYODA TOMOKAZU
Trans Mater Res Soc Jpn, 31(2) 237 - 240, Jun. 2006 - Printing of Au nanoparticles by VUV-exposed patterned surfaces of a poly(dimethylsiloxane) film
TAGAYA MOTOHIRO; KOMURA MOTONORI; IYODA TOMOKAZU; NAKAGAWA MASARU
Trans Mater Res Soc Jpn, 31(2) 273 - 276, Jun. 2006 - Pd-promoted Ni-P electroless deposition on a hydrogen-bonded molecular surface of a supramolecular fibrous template
Daisuke Ishii; Taichi Nagashima; Mitsuru Udatsu; Ren‐De Sun; Yuuichi Ishikawa; Shinichi Kawasaki; Mitsuaki Yamada; Tomokazu Iyoda; Masaru Nakagawa
Chemistry of Materials, 18(8) 2152 - 2158, Mar. 2006, Scientific journal - Photochemical fabrication of ordered Ag nanoparticles array using diblock copolymer as template
Jingze Li; Kaori Kamata; Tomokazu Iyoda
Polymer Preprints, Japan, 55(2) 3887 - 3888, 2006, International conference proceedings - Visualization of structural transition of cylindrical microphase separation including liquid crystals by temperature controlled AFM
Motonori Komura; Kazuhito Watanabe; Kaori Kamata; Tomokazu Iyoda
Polymer Preprints, Japan, 55(2) 4400 - 4401, 2006, International conference proceedings - Nanopattern transcription on Si wafer surface through block copolymer mask
Ryoko Watanabe; Kaori Kamata; Tomokazu Iyoda
Polymer Preprints, Japan, 55(2) 5120 - 5121, 2006, International conference proceedings - Magnetic orientation of magnetic conductive NiP microrods affected by the kind of thermosetting resins
Hirokazu Oda; Taichi Nagashima; Shin-Ichi Kawasaki; Mitsuaki Yamada; Tomokazu Iyoda; Masaru Nakagawa
Polymer Preprints, Japan, 55(2) 3861 - 3862, 2006, International conference proceedings - Templating process of nanocylinder array structure in amphiphilic diblock copolymer film
Kaori Kamata; Tomokazu Iyoda
Polymer Preprints, Japan, 55(2) 3951 - 3952, 2006, International conference proceedings - Magnetic orientation of Ni-P hollow microfibers in PDMS resin films II - Dependence of magnetic field
Hirokazu Oda; Taichi Nagashima; Shin-Ichi Kawasaki; Mitsuaki Yamada; Tomokazu Iyoda; Masaru Nakagawa
Polymer Preprints, Japan, 55(1) 1503 , 2006, International conference proceedings - Fabrication of highly ordered nanotemplate films from amphiphilic photocrosslinkable diblock copolymers: Synthesis, characterization and properties
Annadanam V. Sesha Sainath; Keiko Ogawa; Hirohisa Yoshida; Kaori Kamata; Tomokazu Iyoda
Polymer Preprints, Japan, 55(1) 1645 , 2006, International conference proceedings - Electrochemical anisotropy of block copolymer nanocylinder array strucutre
Kaori Kamata; Tomokazu Iyoda
Polymer Preprints, Japan, 55(1) 1692 , 2006, International conference proceedings - Micro-phase separated structure of new biphenyl-containing amphiphilic block copolymers and effect of exposure to electron beam
Kawashima Yuko; Komura Motonori; Masaru Nakagawa; Tomokazu Iyoda
Polymer Preprints, Japan, 55(1) 1644 , 2006, International conference proceedings - Supercritical CO 2 modificationamphiphilicdi-block copolymer 2. PEO phase transition of PEO m-b-PMA(Az) n
Chihiro Iwamoto; Séverine A. E. Boyer; Tomokazu Iyoda; Hirohisa Yoshida
Polymer Preprints, Japan, 55(1) 784 , 2006, International conference proceedings - Direct observation of phase transition of cylindrical-microphase separated films including liquid crystals by temperature controlled AFM
Motonori Komura; Kazuhito Watanabe; Kaori Kamata; Tomokazu Iyoda
Polymer Preprints, Japan, 55(1) 845 , 2006, International conference proceedings - Regiospecific accumulation of fullerene in microphase separated nanostructure of block copolymer
Tomomichi Naka; Asaoka Sadayuki; Takeshi Yamada; Hirohisa Yoshida; Tomokazu Iyoda
Polymer Preprints, Japan, 55(1) 1138 , 2006, International conference proceedings - Synthesis and spectroscopic properties of amphiphilic diblock copolymer bearing a 2,5-diarylthiazole moiety
Junichi Shikuma; Kohtaro Osakada; Motoi Kinoshita; Tomiki Ikeda; Sadayuki Asaoka; Tomokazu Iyoda; Atsunori Mori
Polymer Preprints, Japan, 55(1) 1532 , 2006, International conference proceedings - Regiospecific accumulation of photofunctional units at microphase segregation interface of amphiphilic diblock copolymer
Sadayuki Asaoka; Tomohisa Miyatani; Motonori Komura; Tomokazu Iyoda; Yoshinori Nishikitani; Takaya Kubo; Souichi Uchida
Polymer Preprints, Japan, 55(2) 4665 - 4666, 2006, International conference proceedings - Nanostructure based on phase segregation through controlled molecular interaction in amphiphilic diblock copolymers with various mesogens
Sadayuki Asaoka; Hitomi Tokimori; Motonori Komura; Takeshi Yamada; Hirohisa Yoshida; Tomokazu Iyoda
Polymer Preprints, Japan, 55(2) 3539 , 2006, International conference proceedings - Large-area coating of nanostructured block copolymer film
Kaorl Kamata; Kazuhito Watanabe; Ryoko Watanabe; Takefumi Sasage; Yuko Kawashima; Motonori Komura; Keiko Ogawa; Sadayuki Asaoka; Masaru Nakagawa; Tomokazu Iyoda; Mitsuaki Tsughiya; Hiroshi Ochiai
Polymer Preprints, Japan, 55(2) 4036 , 2006, International conference proceedings - Regiospecific accumulation of fullerene in microphase separated nanostructure of block copolymer
Tomomichi Naka; Asaoka Sadayuki; Takeshi Yamada; Hirohisa Yoshida; Tomokazu Iyoda
Polymer Preprints, Japan, 55(2) 2477 - 2478, 2006, International conference proceedings - Syntheses and nanostructure of amphiphilic liquid crystalline block copolymers with various mesogene units
Sadayuki Asaoka; Takayuki Uekusa; Takeshi Yamada; Hirohisa Yoshida; Tomokazu Iyoda
Transactions of the Materials Research Society of Japan, Vol 31, No 2, ELSEVIER SCIENCE BV, 31(2) 537 - 540, 2006, International conference proceedings - Self-assembly of gold nanoparticles using nonophase separated amphiphilic block copolymers as a template
Shigeru Watanabe; Ryutaro Fujiwara; Masanori Hada; Yuka Okazaki; Tomokazu Iyoda
Polymer Preprints, Japan, 55(1) 1282 , 2006, International conference proceedings - Composite of amphiphilic di-block copolymer and Au nanoparticles by super critical CO
2
Chihiro Iwamoto; Severine A.E. Boyer; Hirohisa Yoshida; Shigeru Watanabe; Tomokazu Iyoda
Polymer Preprints, Japan, 55(1) 894 , 2006, International conference proceedings - Organization of ordered metal nanodots using microphase separated polymer films as templates
Shigeru Watanabe; Chiharu Fukui; Ryutaro Fujiwara; Yuka Okazaki; Li Jingze; Tomokazu Iyoda
Polymer Preprints, Japan, 55(2) 3941 - 3942, 2006, International conference proceedings - Complex formation between gold nano-particle and amphiphilic di-block copolymer by super critical carbon dioxide
Chihiro Iwamoto; Severine Boyer; Hirohisa Yoshida; Shigeru Watanabe; Tomokazu Iyoda
Polymer Preprints, Japan, 55(2) 3759 - 3760, 2006, International conference proceedings - Organization of ordered metal nanodots using microphase separated polymer films as templates
Ryutaro Fujiwara; Chiharu Fukui; Yuka Okazaki; Tomokazu Iyoda; Shigeru Watanabe
Polymer Preprints, Japan, 55(2) 3943 - 3944, 2006, International conference proceedings - Thermally Reversible Structural Transformation Involving a C–H···O Hydrogen Bond in a Supramolecular Crystal
Daisuke Ishii; Takeshi Yamada; Tomokazu Iyoda; Hirohisa Yoshida; Masaru Nakagawa
Chemistry Letters, The Chemical Society of Japan, 35(12) 1394 - 1395, 2006 - Enhancement of Surface-Relief Gratings Recorded on Amphiphilic Liquid-Crystalline Diblock Copolymer by Nanoscale Phase Separation
YU HAIFENG; OKANO KUNIHIKO; SHISHIDO ATSUSHI; IKEDA TOMIKI; KAMATA KAORI; KOMURA MOTONORI; IYODA TOMOKAZU
Adv Mater, 17(18) 2184 - 2188, 16 Sep. 2005 - Formation process of silver-polypyrrole coaxial manocables synthesized by redox reaction between AgNO3 and pyrrole in the presence of poly(vinylpyrrolidone)
Aihua Chen; Kaori Kamata; Masaru Nakagawa; Tomokazu Iyoda; Haiqiao Wang; Xiaoyu Li
The Journal of Physical Chemistry B, 109(39) 18283 - 18288, Sep. 2005, Scientific journal - Thickness Control of Polycationic Single-Layer Adsorption Film by Mix Proportion of Poor Solvent to Good Solvent
SUZUKI YUJI; KOMURA MOTONORI; NAKAGAWA MASARU; IYODA TOMOKAZU
Trans Mater Res Soc Jpn, 30(3) 695 - 698, Sep. 2005 - Aggregation Control and Photochemical Behaviors in UV-Sensitive Organosilane Monolayers Bearing Naphthylmethylsulfonyl Groups
Motohiro Tagaya; Masaru Nakagawa; Tomokazu Iyoda
Transactions of the Materials Research Society of Japan, The Materials Research Society of Japan, 30(1) 163 - 166, 01 Mar. 2005, International conference proceedings - Crystal structure of hydrogen-bonded supramolecular crystals
Daisuke Ishii; Tomokazu Iyoda; Masaru Nakagawa
Polymer Preprints, Japan, 54(2) 3678 , 2005, International conference proceedings - High energy beam irradiating process of microphase separated films with perpendicularly aligned cylinders
Motonori Komura; Kazuhito Watanabe; Kaori Kamata; Tomokazu Iyoda
Polymer Preprints, Japan, 54(2) 3546 , 2005, International conference proceedings - Change in surface structure of micro-phase separated films by vacuum UV irradiation
Motonori Komura; Kazuhito Watanabe; Kaori Kamata; Tomokazu Iyoda
Polymer Preprints, Japan, 54(1) 1015 , 2005, International conference proceedings - Misability of amphiphilic di-block copolymer blend systems observed by AFM
Shintaro Kitajima; Takeshi Yamada; Motonori Komura; Hirohisa Yoshida; Tomokazu Iyoda
Polymer Preprints, Japan, 54(2) 3601 , 2005, International conference proceedings - AFM study of cross sections of phase separated films with hexagonally arranged cylinders
Motonori Komura; Tomokazu Iyoda
Polymer Preprints, Japan, 54(1) 978 , 2005, International conference proceedings - Photochemical fixation of highly ordered nanocylinder array structures in amphiphilic diblock copolymer
Annadanam V. Sesha Sainath; Keiko Ogawa; Kaori Kamata; Tomokazu Iyoda
Polymer Preprints, Japan, 54(2) 4310 - 4311, 2005, International conference proceedings - Cleavage of microphase separated substances with highly ordered cylinders
Motonori Komura; Tomokazu Iyoda
Polymer Preprints, Japan, 54(2) 3313 - 3314, 2005, International conference proceedings - Electroless deposition of Pd thin layer on surface of fibrous molecular assemblage of hydrogen-bonded polymer
Daisuke Ishii; Tomokazu Iyoda; Masaru Nakagawa
Polymer Preprints, Japan, 54(2) 4255 - 4256, 2005, International conference proceedings - Morphology control of hollow Ni-P microfibers
Mitsuru Udatsu; Daisuke Ishii; Masaru Nakagawa; Tomokazu Iyoda; Taichi Nagashima; Mitsuaki Yamada
Transactions of the Materials Research Society of Japan, Vol 30, No 4, ELSEVIER SCIENCE BV, 30(4) 1219 - 1222, 2005, International conference proceedings - Fabrication of two-dimensional arrays of gold nanoparticles using phase-segregated films of amphiphilic block copolymers as templates
Ryutaro Fujiwara; Masanori Hada; Katsuhira Yoshida; Keiko Ogawa; Hitomi Tokimori; Tomokazu Iyoda; Shigeru Watanabe
Polymer Preprints, Japan, 54(1) 949 , 2005, International conference proceedings - Preparation and Langmuir-Blodgett assembly of gold nanoparticles modified with amphiphilic diblock copolymers
Masanori Hada; Ryutaro Fujiwara; Katsuhira Yoshida; Hirohisa Yoshida; Tomokazu Iyoda; Shigeru Watanabe
Polymer Preprints, Japan, 54(2) 3020 - 3021, 2005, International conference proceedings - Fabrication of two-dimensional arrays of gold nanoparticles using phase-segregated films of amphoitic block copolymers as templates
Ryutaro Fujiwara; Masanori Hada; Katsuhira Yoshida; Tomokazu Iyoda; Shigeru Watanabe
Polymer Preprints, Japan, 54(2) 3062 , 2005, International conference proceedings - Nano-sale modification of amphiphilic di-block copolymer by super critical CO
2
Chihiro Iwamoto; Severine Boyer; Hirohisa Yoshida; Shigeru Watanabe; Tomokazu Iyoda
Polymer Preprints, Japan, 54(2) 3584 , 2005, International conference proceedings - Tubular and twisted Ni-P fibers molded from morphology-tunable and recyclable organic templates of hydrogen-bonded supramolecular assemblages
Masaru Nakagawa; Daisuke Ishii; Ken'ichi Aoki; Takahiro Seki; Tomokazu Iyoda
Advanced Materials, 17(2) 200 - 205, Jan. 2005, Scientific journal - Selective Ni-P electroless plating on photopatterned cationic adsorption films influenced by alkyl chain lengths of polyelectrolyte adsorbates and additive surfactants
Masaru Nakagawa; Nozomi Nawa; Tomokazu Iyoda
Langmuir, 20(22) 9844 - 9851, Sep. 2004, Scientific journal - Fabrication of Ni tubes using amphoteric azopyridine carboxylic acids
Daisuke Ishii; Masaru Nakagawa; Ken-ichi Aoki; Takahiro Seki; Tomokazu Iyoda
Materials Research Society symposia proceedings, EXS-2 97 - 99, 2004, Scientific journal - Photoinduced polar transition of substrate surfaces by photodegradable cationic adsorbate monolayers
Masaru Nakagawa; Nozomi Nawa; Takahiro Seki; Tomokazu Iyoda
Langmuir, 19(21) 8769 - 8776, Sep. 2003, Scientific journal - Conducting Polymer Film - New Aspect of Polymer Film with Solid-Solid Interfacial Function -
IYODA Tomokazu
Kobunshi, The Society of Polymer Science, Japan, 50(9) 662 - 662, 01 Sep. 2001 - Intramolecular Magnetic Interaction of Phenylene-Linked Bis-β-diketone Metal Complexes
MATSUSHITA Michio M.; YASUDA Tomohiro; KAWANO Ryuji; KAWAI Tadashi; IYODA Tomokazu
Chemistry Letters, The Chemical Society of Japan, 2000(7) 812 - 813, Jul. 2000 - In situ AFM study of the electrochemical deposition of polybithiophene from propylene carbonate solution
OA Semenikhin; L Jiang; T Iyoda; K Hashimoto; A Fujishima
SYNTHETIC METALS, ELSEVIER SCIENCE SA, 110(3) 195 - 201, Apr. 2000, Scientific journal - Photo-induced nanopatterns on the surface of C60 single crystals
Lei Jiang; Yousoo Kim; Tomokazu Iyoda; Jin Li; Koichi Kitazawa; Akira Fujishima; Kazuhito Hashimoto
Advanced Materials, Wiley-VCH Verlag, 11(8) 649 - 652, 02 Jun. 1999, Scientific journal - Photofunctional vesicles containing prussian blue and azobenzene
Y Einaga; O Sato; T Iyoda; A Fujishima; K Hashimoto
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, AMER CHEMICAL SOC, 121(15) 3745 - 3750, Apr. 1999, Scientific journal - Grain size of a hard molecule-based-magnet of manganese porphyrin-tetracyanoethylene charge transfer salt
K Nagai; L Jiang; T Iyoda; A Fujishima; K Hashimoto
THIN SOLID FILMS, ELSEVIER SCIENCE SA, 331(1-2) 165 - 169, Oct. 1998, Scientific journal - Normally aligned pi-conjugated Langmuir-Blodgett films of oligo-acene amphiphiles
K Ishibashi; T Iyoda; K Hashimoto; A Fujishima
THIN SOLID FILMS, ELSEVIER SCIENCE SA, 325(1-2) 218 - 222, Jul. 1998, Scientific journal - AFM study of surface phenomena based on C(60) film growth
Y Kim; L Jiang; T Iyoda; K Hashimoto; A Fujishima
APPLIED SURFACE SCIENCE, ELSEVIER SCIENCE BV, 130 602 - 609, Jun. 1998, Scientific journal - Soliton superlattices on the (0001) surface of C-70 single crystals
L Jiang; T Iyoda; DA Tryk; N Kino; K Kitazawa; A Fujishima; K Hashimoto
SURFACE SCIENCE, ELSEVIER SCIENCE BV, 408(1-3) 112 - 122, Jun. 1998, Scientific journal - Polymeric Metal Complexes Through Self-Assembly -Structures and Functions-
IYODA Tomokazu; M. MATSUSHITA Michio
Kobunshi, The Society of Polymer Science, Japan, 47(5) 331 - 335, 01 May 1998 - Hydration-dehydration-induced reversible ordering-disordering transition of the molecular arrangement on the surface of KCP(Br) single crystals
T Kawasaki; L Jiang; T Iyoda; T Araki; K Hashimoto; A Fujishima
JOURNAL OF PHYSICAL CHEMISTRY B, AMER CHEMICAL SOC, 102(11) 1989 - 1993, Mar. 1998, Scientific journal - AFMobservation of surface reconstruction of C60 single crystals
Y. Kim; L. Jiang; T. Iyoda; J. Li; K. Kitazawa; K. Hashimoto; A. Fujishima
Applied Physics A: Materials Science and Processing, 66(1) S763 - S766, 1998, Scientific journal - Two types of spiral growth of C-60 films on KBr(001)
Y Kim; L Jiang; T Iyoda; K Hashimoto; A Fujishima
APPLIED PHYSICS LETTERS, AMER INST PHYSICS, 71(24) 3489 - 3491, Dec. 1997, Scientific journal - Structural investigation of azobenzene-containing self-assembled monolayer films
R Wang; T Iyoda; L Jiang; DA Tryk; K Hashimoto; A Fujishima
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, ELSEVIER SCIENCE SA, 438(1-2) 213 - 219, Nov. 1997, Scientific journal - First-order hyperpolarizability of oligo-acene derivatives by hyper-Rayleigh scattering
K Ishibashi; T Iyoda; K Hashimoto; A Fujishima; Y Shirai; J Abe
CHEMICAL PHYSICS LETTERS, ELSEVIER SCIENCE BV, 279(1-2) 107 - 111, Nov. 1997, Scientific journal - Magnetic properties of mixed ferro-ferrimagnets composed of Prussian blue analogs
S Ohkoshi; T Iyoda; A Fujishima; K Hashimoto
PHYSICAL REVIEW B, AMERICAN PHYSICAL SOC, 56(18) 11642 - 11652, Nov. 1997, Scientific journal - Molecularly resolved observation of surface reconstruction of C60 epitaxial films by atomic force microscopy
Y. Kim; L. Jiang; T. Iyoda; K. Hashimoto; A. Fujishima
Surface Science, Elsevier, 385(2-3) L945 - L951, 10 Aug. 1997, Scientific journal - Electrochemical modulation of molecular conversion in an azobenzene-terminated self-assembled monolayer film: An in situ UV-visible and infrared study
R Wang; T Iyoda; DA Tryk; K Hashimoto; A Fujishima
LANGMUIR, AMER CHEMICAL SOC, 13(17) 4644 - 4651, Aug. 1997, Scientific journal - Surface Molecular Rearrangements on the (0001) Face of C70 Single Crystals
Jiang Lei; Iyoda Tomokazu; Tryk Donald; Kino Nobuhiro; Kitazawa Koichi; Fujishima Akira; Hashimoto Kazuhito
Jpn J Appl Phys, The Japan Society of Applied Physics, 36(6) 3903 - 3908, 30 Jun. 1997 - Photo-Induced Structural Transformation on the Surface of Azobenzene Crystals
Nakayama Keisuke; Jiang Lei; Iyoda Tomokazu; Hashimoto Kazuhito; Fujishima Akira
Jpn J Appl Phys, The Japan Society of Applied Physics, 36(6) 3898 - 3902, 30 Jun. 1997 - Photocatalytic bactericidal effect of TiO2 thin films: Dynamic view of the active oxygen species responsible for the effect
Y Kikuchi; K Sunada; T Iyoda; K Hashimoto; A Fujishima
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, ELSEVIER SCIENCE SA LAUSANNE, 106(1-3) 51 - 56, Jun. 1997, Scientific journal - A soft-hard-tunable molecule-based magnet via photo-induced spin-flopping transition in a MnTEtOPP-TCNE charge transfer salt
K Nagai; T Iyoda; A Fujishima; K Hashimoto
SOLID STATE COMMUNICATIONS, PERGAMON-ELSEVIER SCIENCE LTD, 102(11) 809 - 812, Jun. 1997, Scientific journal - Spin switching effect in nickel nitroprusside: Design of a molecular spin device based on spin exchange interaction
ZZ Gu; O Sato; T Iyoda; K Hashimoto; A Fujishima
CHEMISTRY OF MATERIALS, AMER CHEMICAL SOC, 9(5) 1092 - 1097, May 1997, Scientific journal - AFM molecular images during tip-induced surface modification on the (010) surface of a KCP(Br) single crystal
T Kawasaki; L Jiang; T Iyoda; T Araki; K Hashimoto; A Fujishima
JOURNAL OF PHYSICAL CHEMISTRY B, AMER CHEMICAL SOC, 101(14) 2723 - 2729, Apr. 1997, Scientific journal - Magnetic properties of charge transfer complexes of manganese porphyrin derivatives and tetracyanoethylene
K Nagai; T Iyoda; A Fujishima; K Hashimoto
SYNTHETIC METALS, ELSEVIER SCIENCE SA LAUSANNE, 85(1-3) 1701 - 1702, Feb. 1997, Scientific journal - A Kelvin probe force microscopic study of the local dopant distribution in conducting polybithiophene
OA Semenikhin; L Jiang; T Iyoda; K Hashimoto; A Fujishima
ELECTROCHIMICA ACTA, PERGAMON-ELSEVIER SCIENCE LTD, 42(20-22) 3321 - 3326, 1997, Scientific journal - Electrochemical Syntheses and Electrochromic Properties of Chromium Cyanide Magnetic Thin Films
SATO Osamu; ZHONGZE Gu; ETOH Hiroyuki; ICHIYANAGI Jun-ichi; IYODA Tomokazu; FUJISHIMA Akira; HASHIMOTO Kazuhito
Chemistry Letters, The Chemical Society of Japan, 1997(1) 37 - 38, Jan. 1997 - Atomic force microscopy and Kelvin probe force microscopy evidence of local structural inhomogeneity and nonuniform dopant distribution in conducting polybithiophene
OA Semenikhin; L Jiang; T Iyoda; K Hashimoto; A Fujishima
JOURNAL OF PHYSICAL CHEMISTRY, AMER CHEMICAL SOC, 100(48) 18603 - 18606, Nov. 1996, Scientific journal - Molecular-level design of a photoinduced magnetic spin coupling system: Nickel nitroprusside
ZZ Gu; O Sato; T Iyoda; K Hashimoto; A Fujishima
JOURNAL OF PHYSICAL CHEMISTRY, AMER CHEMICAL SOC, 100(47) 18289 - 18291, Nov. 1996, Scientific journal - Photoinduced magnetization of a cobalt-iron cyanide
O Sato; T Iyoda; A Fujishima; K Hashimoto
SCIENCE, AMER ASSOC ADVANCEMENT SCIENCE, 272(5262) 704 - 705, May 1996, Scientific journal - Investigation of the surface morphology and photoisomerization of an azobenzene-containing ultrathin film
R Wang; L Jiang; T Iyoda; DA Tryk; K Hashimoto; A Fujishima
LANGMUIR, AMER CHEMICAL SOC, 12(8) 2052 - 2057, Apr. 1996, Scientific journal - Observation of superstructure on the {0001} face of C70 single crystals
L. Jiang; T. Iyoda; N. Kino; K. Kitazawa; K. Hashimoto; A. Fujishima
Surface Science, Elsevier, 349(1) L101 - L106, 20 Mar. 1996, Scientific journal - Syntheses and magnetic properties of dye included organometallic magnets: DAMS[MCr(ox)3]
Zhongze Gu; O. Sato; T. Iyoda; K. Hashimoto; A. Fujishima
Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, Taylor and Francis Inc., 285-286 147 - 152, 1996, Scientific journal - Electrochemically tunable magnetic phase transition in a high-T-c chromium cyanide thin film
O Sato; T Iyoda; A Fujishima; K Hashimoto
SCIENCE, AMER ASSOC ADVANCEMENT SCIENCE, 271(5245) 49 - 51, Jan. 1996, Scientific journal - The Morphology of Lamellar C70 Single Crystals as Studied by Atomic Force Microscopy.
Jiang Lei; Iyoda Tomokazu; Kino Nobuhiro; Kitazawa Koichi; Hashimoto Kazuhito; Fujishima Akira
Japanese Journal of Applied Physics, The Japan Society of Applied Physics, 35(1) L48 - L51, 1996 - Strong magnetocrystalline anisotropy in MnTPP-TCNE charge transfer complex
Keiji Nagai; Tomokazu Iyoda; Akira Fujishima; Kazuhito Hashimoto
Chemistry Letters, Chemical Society of Japan, (8) 591 - 592, 1996, Scientific journal - Polarized photoelectrochemical reaction of an azobenzene derivative in Langmuir-Blodgett films
R Wang; T Iyoda; K Hashimoto; A Fujishima
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, ELSEVIER SCIENCE SA LAUSANNE, 92(1-2) 111 - 116, Dec. 1995, Scientific journal - IMAGING OF ONE-DIMENSIONAL CONDUCTING PT COMPLEXES USING ATOMIC-FORCE MICROSCOPY
T KAWASAKI; L JIANG; T IYODA; T ARAKI; DA TRYK; K HASHIMOTO; A FUJISHIMA
CHEMISTRY LETTERS, CHEMICAL SOC JAPAN, (10) 879 - 880, Oct. 1995, Scientific journal - PREPARATION OF TRANSPARENT TIO2 THIN-FILM PHOTOCATALYST AND ITS PHOTOCATALYTIC ACTIVITY
N NEGISHI; T IYODA; K HASHIMOTO; A FUJISHIMA
CHEMISTRY LETTERS, CHEMICAL SOC JAPAN, (9) 841 - 842, Sep. 1995, Scientific journal - MORPHOLOGY AND ORIENTATIONAL DISORDER OF C-70 SINGLE-CRYSTALS
L JIANG; J LI; LA NAGAHARA; N KINO; K KITAZAWA; T IYODA; K HASHIMOTO; A FUJISHIMA
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, SPRINGER VERLAG, 61(1) 17 - 21, Jul. 1995, Scientific journal - SELECTIVE INPLANE PHYTOELECTROCHEMICAL REACTION OF AN AZOBENZENE DERIVATIVE IN AN ASSEMBLED FILM
R WANG; T IYODA; K HASHIMOTO; A FUJISHIMA
JOURNAL OF PHYSICAL CHEMISTRY, AMER CHEMICAL SOC, 99(10) 3352 - 3356, Mar. 1995, Scientific journal - Multi-functionalization of photo-information transducer device.
Shimidzu Takeo; Iyoda Tomokazu
Kobunshi, The Society of Polymer Science, Japan, 37(9) 670 - 673, 1988 - Charge-controllable membrane. Polypyrrole-polyelectrolyte composite membrane through anodic doping process.
Iyoda Tomokazu; Ohtani Akira; Shimidzu Takeo; Honda Kenichi
Chemistry Letters, The Chemical Society of Japan, (5) 687 - 690, 1986 - Functionalyzed conducting polymer membranes. In pursuit of novel function of membrane.:In Pursuit of Novel Function of Membrane
SHIMIDZU Takeo; IYODA Tomokazu
MEMBRANE, THE MEMBRANE SOCIETY OF JAPAN, 11(2) 71 - 82, 1986 - Accordion-type aggregate of water-soluble meso-tetraphenylporphyrin derivatives.
Shimidzu Takeo; Iyoda Tomokazu
Chemistry Letters, The Chemical Society of Japan, (7) 853 - 856, 1981
MISC
- Water-Rich Fluid Material Containing Orderly Condensed Proteins
Tatsuya Nojima; Tomokazu Iyoda
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, WILEY-V C H VERLAG GMBH, 56(5) 1308 - 1312, Jan. 2017 - Amphiphilic Liquid-Crystalline 4-Miktoarm Star Copolymers with a Siloxane Junction Leading to Cylindrically Nanostructured Templates for a Siloxane-Based Nanodot Array
Md Asadul Hoque; Hideaki Komiyama; Hiroki Nishiyama; Keiji Nagai; Takehiro Kawauchi; Tomokazu Iyoda
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, WILEY, 54(9) 1175 - 1188, May 2016 - Generation Dependent Ultrafast Charge Separation and Recombination in a Pyrene-Viologen Family of Dendrons
Zheng Gong; Jianhua Bao; Keiji Nagai; Tomokazu Iyoda; Takehiro Kawauchi; Piotr Piotrowiak
JOURNAL OF PHYSICAL CHEMISTRY B, AMER CHEMICAL SOC, 120(18) 4286 - 4295, May 2016 - Amphiphilic Liquid-Crystalline 4-Miktoarm Star Copolymers with a Siloxane Junction Leading to Cylindrically Nanostructured Templates for a Siloxane-Based Nanodot Array
Md Asadul Hoque; Hideaki Komiyama; Hiroki Nishiyama; Keiji Nagai; Takehiro Kawauchi; Tomokazu Iyoda
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, WILEY, 54(9) 1175 - 1188, May 2016 - Generation Dependent Ultrafast Charge Separation and Recombination in a Pyrene-Viologen Family of Dendrons
Zheng Gong; Jianhua Bao; Keiji Nagai; Tomokazu Iyoda; Takehiro Kawauchi; Piotr Piotrowiak
JOURNAL OF PHYSICAL CHEMISTRY B, AMER CHEMICAL SOC, 120(18) 4286 - 4295, May 2016 - Microalgae-Based Biotemplating Technology toward Next-Generation Information and Communication Material
鎌田香織; 朴貞子; 彌田智一
化学工学, 化学工学会, 80(5) 278 - 281, 2016 - Engineered Asymmetric Composite Membranes with Rectifying Properties
Liping Wen; Kai Xiao; Annadanam V. Sesha Sainath; Motonori Komura; Xiang-Yu Kong; Ganhua Xie; Zhen Zhang; Ye Tian; Tomokazu Iyoda; Lei Jiang
ADVANCED MATERIALS, WILEY-V C H VERLAG GMBH, 28(4) 757 - 763, Jan. 2016 - バイオテンプレート技術：らせん藻類の無電解めっきによる金属マイクロコイルの作製と電磁波応答特性
彌田智一; 鎌田香
Electrochemistry, (9月) 715 - 720, 2016 - Atelocollagen-templated fabrication of tangled fibrous silica
Tatsuya Nojima; Seiya Suzuki; Tomokazu Iyoda
JOURNAL OF MATERIALS CHEMISTRY B, ROYAL SOC CHEMISTRY, 4(41) 6640 - 6643, 2016 - Slowing the translocation of single-stranded DNA by using nano-cylindrical passage self-assembled by amphiphilic block copolymers
Hiroshi Yoshida; Yusuke Goto; Rena Akahori; Yasuhiko Tada; Shohei Terada; Motonori Komura; Tomokazu Iyoda
NANOSCALE, ROYAL SOC CHEMISTRY, 8(43) 18270 - 18276, 2016 - Engineered Asymmetric Composite Membranes with Rectifying Properties
Liping Wen; Kai Xiao; Annadanam V. Sesha Sainath; Motonori Komura; Xiang-Yu Kong; Ganhua Xie; Zhen Zhang; Ye Tian; Tomokazu Iyoda; Lei Jiang
ADVANCED MATERIALS, WILEY-V C H VERLAG GMBH, 28(4) 757 - 763, Jan. 2016 - Atelocollagen-templated fabrication of tangled fibrous silica
Tatsuya Nojima; Seiya Suzuki; Tomokazu Iyoda
JOURNAL OF MATERIALS CHEMISTRY B, ROYAL SOC CHEMISTRY, 4(41) 6640 - 6643, 2016 - Slowing the translocation of single-stranded DNA by using nano-cylindrical passage self-assembled by amphiphilic block copolymers
Hiroshi Yoshida; Yusuke Goto; Rena Akahori; Yasuhiko Tada; Shohei Terada; Motonori Komura; Tomokazu Iyoda
NANOSCALE, ROYAL SOC CHEMISTRY, 8(43) 18270 - 18276, 2016 - Water-rich Fluidic Material Containing Orderly Condensed Protein
Tatsuya Nojima; Tomokazu Iyoda
Angew. Chem. Int. Ed., 2017(56(5)) 1308 - 1312, 2016 - Reversible Size Control of Liquid-Metal Nanoparticles under Ultrasonication
Akihisa Yamaguchi; Yu Mashima; Tomokazu Iyoda
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, WILEY-V C H VERLAG GMBH, 54(43) 12809 - 12813, Oct. 2015 - Metal nanodot arrays fabricated via seed-mediated electroless plating with block copolymer thin film scaffolding
Hideaki Komiyama; Tomokazu Iyoda; Takanobu Sanji
NANOTECHNOLOGY, IOP PUBLISHING LTD, 26(39) 395302 , Oct. 2015 - Reversible Size Control of Liquid-Metal Nanoparticles under Ultrasonication
Akihisa Yamaguchi; Yu Mashima; Tomokazu Iyoda
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, WILEY-V C H VERLAG GMBH, 54(43) 12809 - 12813, Oct. 2015 - Metal nanodot arrays fabricated via seed-mediated electroless plating with block copolymer thin film scaffolding
Hideaki Komiyama; Tomokazu Iyoda; Takanobu Sanji
NANOTECHNOLOGY, IOP PUBLISHING LTD, 26(39) 395302 , Oct. 2015 - Longitudinal and Lateral Integration of Conducting Polymer Nanowire Arrays via Block-Copolymer-Templated Electropolymerization
Hideaki Komiyama; Motonori Komura; Yuka Akimoto; Kaori Kamata; Tomokazu Iyoda
CHEMISTRY OF MATERIALS, AMER CHEMICAL SOC, 27(14) 4972 - 4982, Jul. 2015 - Longitudinal and Lateral Integration of Conducting Polymer Nanowire Arrays via Block-Copolymer-Templated Electropolymerization
Hideaki Komiyama; Motonori Komura; Yuka Akimoto; Kaori Kamata; Tomokazu Iyoda
CHEMISTRY OF MATERIALS, AMER CHEMICAL SOC, 27(14) 4972 - 4982, Jul. 2015 - Conical Gradient Junctions of Dendritic Viologen Arrays on Electrodes
Takehiro Kawauchi; Yuki Oguchi; Keiji Nagai; Tomokazu Iyoda
SCIENTIFIC REPORTS, NATURE PUBLISHING GROUP, 5(5) 11122 , Jun. 2015 - Conical Gradient Junctions of Dendritic Viologen Arrays on Electrodes
Takehiro Kawauchi; Yuki Oguchi; Keiji Nagai; Tomokazu Iyoda
SCIENTIFIC REPORTS, NATURE PUBLISHING GROUP, 5(5) 11122 , Jun. 2015 - Control of Air-Interface-Induced Perpendicular Nanocylinder Orientation in Liquid Crystal Block Copolymer Films by a Surface-Covering Method
Motonori Komura; Atsushi Yoshitake; Hideaki Komiyama; Tomokazu Iyoda
MACROMOLECULES, AMER CHEMICAL SOC, 48(3) 672 - 678, Feb. 2015 - Control of Air-Interface-Induced Perpendicular Nanocylinder Orientation in Liquid Crystal Block Copolymer Films by a Surface-Covering Method
Motonori Komura; Atsushi Yoshitake; Hideaki Komiyama; Tomokazu Iyoda
MACROMOLECULES, AMER CHEMICAL SOC, 48(3) 672 - 678, Feb. 2015 - Poly(NIPAM)を有する側鎖液晶型両親媒性ブロックコポリマーの合成とミクロ相分離構造
波多野慎悟; 渡邊智布; 森一将; 渡辺茂; 彌田智一
高分子学会予稿集(CD-ROM), 64(2), 2015 - Nanotemplate Processes and Smart Membranes of PEO–Liquid Crystalline Block Copolymer Thin Films
彌田智一
membrane, THE MEMBRANE SOCIETY OF JAPAN, 40(4) 168 - 173, 2015 - Transition-metal-free controlled polymerization for poly(p-aryleneethynylene)s
Takanobu Sanji; Asahi Motoshige; Hideaki Komiyama; Junko Kakinuma; Rie Ushikubo; Satoru Watanabe; Tomokazu Iyoda
CHEMICAL SCIENCE, ROYAL SOC CHEMISTRY, 6(1) 492 - 496, 2015 - Linear assembly of a porphyrin-C-60 complex confined in vertical nanocylinders of amphiphilic block copolymer films
Takuya Kamimura; Motonori Komura; Hideaki Komiyama; Tomokazu Iyoda; Fumito Tani
CHEMICAL COMMUNICATIONS, ROYAL SOC CHEMISTRY, 51(9) 1685 - 1688, 2015 - Chemically directed self-assembly of perpendicularly aligned cylinders by a liquid crystalline block copolymer
N. Yamashita; S. Watanabe; K. Nagai; M. Komura; T. Iyoda; K. Aida; Y. Tada; H. Yoshida
JOURNAL OF MATERIALS CHEMISTRY C, ROYAL SOC CHEMISTRY, 3(12) 2837 - 2847, 2015 - Transition-metal-free controlled polymerization for poly(p-aryleneethynylene)s
Takanobu Sanji; Asahi Motoshige; Hideaki Komiyama; Junko Kakinuma; Rie Ushikubo; Satoru Watanabe; Tomokazu Iyoda
CHEMICAL SCIENCE, ROYAL SOC CHEMISTRY, 6(1) 492 - 496, 2015 - Linear assembly of a porphyrin-C-60 complex confined in vertical nanocylinders of amphiphilic block copolymer films
Takuya Kamimura; Motonori Komura; Hideaki Komiyama; Tomokazu Iyoda; Fumito Tani
CHEMICAL COMMUNICATIONS, ROYAL SOC CHEMISTRY, 51(9) 1685 - 1688, 2015 - Chemically directed self-assembly of perpendicularly aligned cylinders by a liquid crystalline block copolymer
N. Yamashita; S. Watanabe; K. Nagai; M. Komura; T. Iyoda; K. Aida; Y. Tada; H. Yoshida
JOURNAL OF MATERIALS CHEMISTRY C, ROYAL SOC CHEMISTRY, 3(12) 2837 - 2847, 2015 - Terminal defined chain-growth polycondensation of 4-chloropyridine
Keiji Nose; Tomokazu Iyoda; Takanobu Sanji
POLYMER, ELSEVIER SCI LTD, 55(16) 3454 - 3457, Aug. 2014 - Single-molecule electroluminescence and photoluminescence of polyfluorene unveils the photophysics behind the green emission band
Yoshihiro Honmou; Shuzo Hirata; Hideaki Komiyama; Junya Hiyoshi; Susumu Kawauchi; Tomokazu Iyoda; Martin Vacha
NATURE COMMUNICATIONS, NATURE PUBLISHING GROUP, 5(5) 4666 , Aug. 2014 - Terminal defined chain-growth polycondensation of 4-chloropyridine
Keiji Nose; Tomokazu Iyoda; Takanobu Sanji
POLYMER, ELSEVIER SCI LTD, 55(16) 3454 - 3457, Aug. 2014 - Single-molecule electroluminescence and photoluminescence of polyfluorene unveils the photophysics behind the green emission band
Yoshihiro Honmou; Shuzo Hirata; Hideaki Komiyama; Junya Hiyoshi; Susumu Kawauchi; Tomokazu Iyoda; Martin Vacha
NATURE COMMUNICATIONS, NATURE PUBLISHING GROUP, 5(5) 4666 , Aug. 2014 - Transition-metal-free controlled polymerization of 2-perfluoroaryl-5- trimethylsilylthiophenes
Takanobu Sanji; Tomokazu Iyoda
Journal of the American Chemical Society, American Chemical Society, 136(29) 10238 - 10241, 23 Jul. 2014 - Transition-Metal-Free Controlled Polymerization of 2-Perfluoroaryl-5-trimethylsilylthiophenes
Takanobu Sanji; Tomokazu Iyoda
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, AMER CHEMICAL SOC, 136(29) 10238 - 10241, Jul. 2014 - Spirulina-Templated Metal Microcoils with Controlled Helical Structures for THz Electromagnetic Responses
Kaori Kamata; Zhenzi Piao; Soichiro Suzuki; Takahiro Fujimori; Wataru Tajiri; Keiji Nagai; Tomokazu Iyoda; Atsushi Yamada; Toshiaki Hayakawa; Mitsuteru Ishiwara; Satoshi Horaguchi; Amha Belay; Takuo Tanaka; Keisuke Takano; Masanori Hangyo
SCIENTIFIC REPORTS, NATURE PUBLISHING GROUP, 4(4) 4919 , May 2014 - Spirulina-Templated Metal Microcoils with Controlled Helical Structures for THz Electromagnetic Responses
Kaori Kamata; Zhenzi Piao; Soichiro Suzuki; Takahiro Fujimori; Wataru Tajiri; Keiji Nagai; Tomokazu Iyoda; Atsushi Yamada; Toshiaki Hayakawa; Mitsuteru Ishiwara; Satoshi Horaguchi; Amha Belay; Takuo Tanaka; Keisuke Takano; Masanori Hangyo
SCIENTIFIC REPORTS, NATURE PUBLISHING GROUP, 4(4) 4919 , May 2014 - Enormously Wide Range Cylinder Phase of Liquid Crystalline PEO-b-PMA(Az) Block Copolymer
Hideaki Komiyama; Ryohei Sakai; Shingo Hadano; Sadayuki Asaoka; Kaori Kamata; Tomokazu Iyoda; Motonori Komura; Takeshi Yamada; Hirohisa Yoshida
MACROMOLECULES, AMER CHEMICAL SOC, 47(5) 1777 - 1782, Mar. 2014 - Enormously Wide Range Cylinder Phase of Liquid Crystalline PEO-b-PMA(Az) Block Copolymer
Hideaki Komiyama; Ryohei Sakai; Shingo Hadano; Sadayuki Asaoka; Kaori Kamata; Tomokazu Iyoda; Motonori Komura; Takeshi Yamada; Hirohisa Yoshida
MACROMOLECULES, AMER CHEMICAL SOC, 47(5) 1777 - 1782, Mar. 2014 - 側鎖液晶型両親媒性トリブロックコポリマーミクロ相分離構造中のポリエチレンオキシドの熱物性
波多野慎悟; 下元彬裕; 松尾綾乃; 渡辺茂; 小村元憲; 彌田智一
高分子学会予稿集(CD-ROM), 63(2), 2014 - 藻類スピルリナを使った微小コイルの作製
朴貞子; 彌田智一; 鎌田香織
コンバーテック, (10月) 33 - 37, 2014 - Direct Observation of Faceted Grain Growth of Hexagonal Cylinder Domains in a Side Chain Liquid Crystalline Block Copolymer Matrix
Motonori Komura; Hideaki Komiyama; Keiji Nagai; Tomokazu Iyoda
MACROMOLECULES, AMER CHEMICAL SOC, 46(22) 9013 - 9020, Nov. 2013 - Direct Observation of Faceted Grain Growth of Hexagonal Cylinder Domains in a Side Chain Liquid Crystalline Block Copolymer Matrix
Motonori Komura; Hideaki Komiyama; Keiji Nagai; Tomokazu Iyoda
MACROMOLECULES, AMER CHEMICAL SOC, 46(22) 9013 - 9020, Nov. 2013 - Fast Controlled Living Polymerization of Arylisocyanide Initiated by Aromatic Nucleophile Adduct of Nickel Isocyanide Complex
Sadayuki Asaoka; Ayako Joza; Sakiko Minagawa; Lijun Song; Yukimitsu Suzuki; Tomokazu Iyoda
ACS MACRO LETTERS, AMER CHEMICAL SOC, 2(10) 906 - 911, Oct. 2013 - Fast Controlled Living Polymerization of Arylisocyanide Initiated by Aromatic Nucleophile Adduct of Nickel Isocyanide Complex
Sadayuki Asaoka; Ayako Joza; Sakiko Minagawa; Lijun Song; Yukimitsu Suzuki; Tomokazu Iyoda
ACS MACRO LETTERS, AMER CHEMICAL SOC, 2(10) 906 - 911, Oct. 2013 - Scientific News: 液晶配向膜で半導体無機ナノロッドの方向制御
久保 祥一; 田口怜; 林田研一; 成田麻美子; 波多野慎悟; 渡辺修; 彌田智一; 中川勝
高分子, 62(8) 460 , Aug. 2013, Report scientific journal - Conjugated Polymer Chains Confined in Vertical Nanocylinders of a Block-Copolymer Film: Preparation, Characterization, and Optoelectronic Function
Ban Xuan Dong; Yoshihiro Honmou; Hideaki Komiyama; Shu Furumaki; Tomokazu Iyoda; Martin Vacha
MACROMOLECULAR RAPID COMMUNICATIONS, WILEY-V C H VERLAG GMBH, 34(6) 492 - 497, Mar. 2013 - Conjugated Polymer Chains Confined in Vertical Nanocylinders of a Block-Copolymer Film: Preparation, Characterization, and Optoelectronic Function
Ban Xuan Dong; Yoshihiro Honmou; Hideaki Komiyama; Shu Furumaki; Tomokazu Iyoda; Martin Vacha
MACROMOLECULAR RAPID COMMUNICATIONS, WILEY-V C H VERLAG GMBH, 34(6) 492 - 497, Mar. 2013 - ナノロッド/ネマチック液晶ハイブリッド材料の創成とZnOナノロッドの一軸配向
久保祥一; 田口怜; 林田研一; 成田麻美子; 波多野慎悟; 渡辺修; 彌田智一; 中川勝
高分子学会予稿集(CD-ROM), 62(1), 2013 - 高比表面積エアロゲル合成へ向けたフェノール骨格有機ゲルに溶媒が与える効果の研究
米川穣; 幡野亜由美; 波多野慎悟; NAZAROV Wigen; 根本修克; 彌田智一; 彌田智一; 長井圭治; 長井圭治
高分子学会予稿集(CD-ROM), 62(2), 2013 - ナノロッド/ネマチック液晶ハイブリッド材料による半導体ナノロッドの一軸配向
久保祥一; 田口怜; 林田研一; 成田麻美子; 波多野慎悟; 渡辺修; 彌田智一; 中川勝
高分子学会予稿集(CD-ROM), 62(2), 2013 - ネマチック液晶性ブロック共重合体のATRP法による合成とミクロ相分離構造の解析
小林翔; 田口怜; 久保祥一; 波多野慎悟; 小村元憲; 彌田智一; 中川勝
高分子学会予稿集(CD-ROM), 62(1), 2013 - 側鎖液晶型両親媒性トリブロックコポリマーのミクロ相分離構造中における液晶性ポリメタクリレートおよびポリエチレンオキシドドメインの熱物性
波多野慎悟; 渡辺茂; 小村元憲; 彌田智一
高分子学会予稿集(CD-ROM), 62(1), 2013 - Surface-enhanced raman scattering (sers) effect of hexagonally arranged gold nanoparticle array with 29-nm particles and 23-nm gaps using liquid-crystalline block-copolymer template
Shingo Hadano; Hiroshige Handa; Keiji Nagai; Tomokazu Iyoda; JingZe Li; Shigeru Watanabe
Chemistry Letters, 42(1) 71 - 73, Jan. 2013 - Surface-enhanced raman scattering (sers) effect of hexagonally arranged gold nanoparticle array with 29-nm particles and 23-nm gaps using liquid-crystalline block-copolymer template
Shingo Hadano; Hiroshige Handa; Keiji Nagai; Tomokazu Iyoda; JingZe Li; Shigeru Watanabe
Chemistry Letters, 42(1) 71 - 73, Jan. 2013 - Hexagonally Arrayed 17 nm Interpenetrating and Continuous Biphasic Structure via Block-Copolymer-Templating Process
Nanae Yamashita; Hideaki Komiyama; Yongbin Zhao; Motonori Komura; Tomokazu Iyoda; Keiji Nagai
JAPANESE JOURNAL OF APPLIED PHYSICS, IOP PUBLISHING LTD, 51(7) 076704/1-076704/5 , Jul. 2012 - Hexagonally Arrayed 17 nm Interpenetrating and Continuous Biphasic Structure via Block-Copolymer-Templating Process
Nanae Yamashita; Hideaki Komiyama; Yongbin Zhao; Motonori Komura; Tomokazu Iyoda; Keiji Nagai
JAPANESE JOURNAL OF APPLIED PHYSICS, IOP PUBLISHING LTD, 51(7) 076704/1-076704/5 , Jul. 2012 - C-6-1 Biotemplate Fabrication and Teraheltz Electromagnetic Response of Metal Microcoil-dispersed Materials from Coiled Algae
Suzuki Soichiro; Fujimori Takahiro; Kamata Kaori; Nagai Keiji; Iyoda Tomokazu; Takano Keisuke; Hangyo Masanori
Proceedings of the IEICE General Conference, The Institute of Electronics, Information and Communication Engineers, 2012(2) 7 - 7, 06 Mar. 2012 - ビフェニル部位を有するポリ(メタクリレート)のATRP法による合成および液晶性評価
田口怜; 久保祥一; 波多野慎悟; 彌田智一; 中川勝
高分子学会予稿集(CD-ROM), 61(1), 2012 - ビフェニル部位を側鎖とする高分子を表面グラフトした酸化亜鉛ナノロッドの合成
久保祥一; 田口怜; 林田研一; 成田麻美子; 波多野慎悟; 渡辺修; 彌田智一; 中川勝
高分子学会予稿集(CD-ROM), 61(1), 2012 - 側鎖液晶型両親媒性ABAトリブロックコポリマーのミクロ相分離構造とナノドメインの熱物性
波多野慎悟; 田尻亘; 小村元憲; 彌田智一; ZHANG Fen; YANG Wantai
高分子学会予稿集(CD-ROM), 61(2), 2012 - ブロックコポリマーテンプレート法で作製した金ナノ粒子アレイの表面増強ラマン効果と分子センシングへの応用
波多野慎悟; 渡辺茂; 半田浩卯; 長井圭治; 彌田智一; LI Jingze
高分子学会予稿集(CD-ROM), 61(2), 2012 - 垂直配向シリンダーを有するブロックコポリマー中での共役系高分子のEL発光
本望圭紘; DONG Xuan Ban; 羽渕聡史; 込山英秋; 波多野慎悟; 彌田智一; VACHA Martin
光化学討論会講演要旨集, 2012, 2012 - Ultrahigh density electrolytic nanoreactors composed of liquid crystalline block copolymer template: water-electrolysis-induced deposition of cerium oxyhydroxide nanorod array
Takenori Goda; Tomokazu Iyoda
JOURNAL OF MATERIALS CHEMISTRY, ROYAL SOC CHEMISTRY, 22(19) 9477 - 9480, 2012 - Ultrahigh density electrolytic nanoreactors composed of liquid crystalline block copolymer template: water-electrolysis-induced deposition of cerium oxyhydroxide nanorod array
Takenori Goda; Tomokazu Iyoda
JOURNAL OF MATERIALS CHEMISTRY, ROYAL SOC CHEMISTRY, 22(19) 9477 - 9480, 2012 - Fabrication of Left-Handed Metal Microcoil from Spiral Vessel of Vascular Plant
Kaori Kamata; Soichiro Suzuki; Masayuki Ohtsuka; Masaru Nakagawa; Tomokazu Iyoda; Atsushi Yamada
ADVANCED MATERIALS, WILEY-BLACKWELL, 23(46) 5509 - +, Dec. 2011 - Fabrication of Left-Handed Metal Microcoil from Spiral Vessel of Vascular Plant
Kaori Kamata; Soichiro Suzuki; Masayuki Ohtsuka; Masaru Nakagawa; Tomokazu Iyoda; Atsushi Yamada
ADVANCED MATERIALS, WILEY-BLACKWELL, 23(46) 5509 - +, Dec. 2011 - Normally Oriented Cylindrical Nanostructures in Amphiphilic PEO-LC Diblock Copolymers Films
Sadayuki Asaoka; Takayuki Uekusa; Hitomi Tokimori; Motonori Komura; Tomokazu Iyoda; Takeshi Yamada; Hirohisa Yoshida
MACROMOLECULES, AMER CHEMICAL SOC, 44(19) 7645 - 7658, Oct. 2011 - Normally Oriented Cylindrical Nanostructures in Amphiphilic PEO-LC Diblock Copolymers Films
Sadayuki Asaoka; Takayuki Uekusa; Hitomi Tokimori; Motonori Komura; Tomokazu Iyoda; Takeshi Yamada; Hirohisa Yoshida
MACROMOLECULES, AMER CHEMICAL SOC, 44(19) 7645 - 7658, Oct. 2011 - Block Copolymer Permeable Membrane with Visualized High-Density Straight Channels of Poly(ethylene oxide)
Takashi Yamamoto; Taro Kimura; Motonori Komura; Yukimitsu Suzuki; Tomokazu Iyoda; Sadayuki Asaoka; Haruyuki Nakanishi
ADVANCED FUNCTIONAL MATERIALS, WILEY-BLACKWELL, 21(5) 918 - 926, Mar. 2011 - Block Copolymer Permeable Membrane with Visualized High-Density Straight Channels of Poly(ethylene oxide)
Takashi Yamamoto; Taro Kimura; Motonori Komura; Yukimitsu Suzuki; Tomokazu Iyoda; Sadayuki Asaoka; Haruyuki Nakanishi
ADVANCED FUNCTIONAL MATERIALS, WILEY-BLACKWELL, 21(5) 918 - 926, Mar. 2011 - 可視化透過チャンネルを有する自立型ブロックコポリマー分離膜
彌田智一; 山本崇史; 木村太郎; 小村元憲; 波多野慎悟
日本化学会講演予稿集, 91st(1), 2011 - 両親媒性ブロック共重合体の自己組織化ナノ構造テンプレートを利用した金ナノ粒子の精密配列とプラズモンセンサーへの応用
渡辺茂; 矢羽田達也; 小村元憲; 波多野慎悟; 彌田智一
高分子学会予稿集(CD-ROM), 60(1 Disk1), 2011 - 末端にシクロヘプタトリエン誘導体を有するATRP開始剤を用いた主鎖末端カチオン性ポリメタクリル酸エステルの合成
七宮謙太; 彌田智一; 波多野慎悟
日本化学会講演予稿集, 91st(3), 2011 - ポリ(シアノビフェニルオキシアルキルメタクリレート)のATRP法による合成と相転移挙動
久保祥一; 波多野慎悟; 彌田智一; 中川勝
高分子学会予稿集(CD-ROM), 60(1 Disk1), 2011 - 共役系高分子-ブロックコポリマーハイブリッド材料の作製及び光物性の評価
本望圭紘; 大澤祐太; 羽渕聡史; 波多野慎悟; 彌田智一; VACHA Martin
光化学討論会講演要旨集, 2011, 2011 - ATRPにより合成したポリ(シアノビフェニルオキシアルキル メタクリレート)の溶液内構造形成と液晶性の検討
久保祥一; 波多野慎悟; 彌田智一; 中川勝
高分子学会予稿集(CD-ROM), 60(2 Disk1), 2011 - フロログルシノールとフロログルシノールカルボン酸を用いたフェノール樹脂由来エアロゲルの合成とそのナノ構造に関する研究
幡野亜由美; 波多野慎悟; 彌田智一; NAZAROV Wigen; 長井圭治
高分子学会予稿集(CD-ROM), 60(2 Disk1), 2011 - フロログルシノールとフロログルシノールカルボン酸を用いたフェノール樹脂由来多孔質ゲルの合成と化学構造解析
幡野亜由美; 波多野慎悟; 彌田智一; NAZAROV Wigen; 長井圭治
高分子学会予稿集(CD-ROM), 60(1 Disk1), 2011 - Block Copolymer Template Engineering
IYODA Tomokazu; WATANABE Ryoko
高分子, 高分子学会, 59(2) 100 - 104, 01 Feb. 2010 - 貫通シリンダー型ミクロ相分離構造を有する自立膜-カルコンを側鎖メソゲンにもつ液晶ブロックコポリマーの合成と光架橋反応-
木村太郎; 鈴木幸光; 山本崇史; 波多野慎悟; 小村元憲; 彌田智一
日本化学会講演予稿集, 90th(3), 2010 - ブロックコポリマーテンプレート法によるAuナノドットアレイの配列構造制御
半田浩卯; 彌田智一; 波多野慎悟
高分子学会予稿集(CD-ROM), 59(1 Disk1), 2010 - 貫通シリンダー型ミクロ相分離構造を有する自立膜
木村太郎; 鈴木幸光; 山本崇史; 波多野慎悟; 小村元憲; 彌田智一
高分子学会予稿集(CD-ROM), 59(1 Disk1), 2010 - Long and Winding Road…♪
IYODA Tomokazu
高分子, 59(1) 13 - 14, 01 Jan. 2010 - Nanohole Arrays Fabricated on Gold Surfaces by Total Wet Nanopatterning through Block Copolymer Masks
Ryoko Watanabe; Kaori Ito; Tomokazu Iyoda; Hiroshi Sakaguchi
JAPANESE JOURNAL OF APPLIED PHYSICS, JAPAN SOCIETY APPLIED PHYSICS, 48(6) 06FE08/1-06FE08/4 , Jun. 2009 - Nanohole Arrays Fabricated on Gold Surfaces by Total Wet Nanopatterning through Block Copolymer Masks
Ryoko Watanabe; Kaori Ito; Tomokazu Iyoda; Hiroshi Sakaguchi
JAPANESE JOURNAL OF APPLIED PHYSICS, JAPAN SOCIETY APPLIED PHYSICS, 48(6) 06FE08/1-06FE08/4 , Jun. 2009 - The First-order Magnetic Phase Transition in Ce(III)-organic Complexes
SONG L.-J.; IYODA T.
希土類 = Rare earths, (54) 208 - 209, 21 May 2009 - Laboratory-GISAXS Measurements of Block Copolymer Films with Highly Ordered and Normally Oriented Nanocylinders
Motonori Komura; Kazuhito Watanabe; Tomokazu Iyoda; Takeshi Yamada; Hirohisa Yoshida; Yoshio Iwasaki
CHEMISTRY LETTERS, CHEMICAL SOC JAPAN, 38(5) 408 - 409, May 2009 - Laboratory-GISAXS Measurements of Block Copolymer Films with Highly Ordered and Normally Oriented Nanocylinders
Motonori Komura; Kazuhito Watanabe; Tomokazu Iyoda; Takeshi Yamada; Hirohisa Yoshida; Yoshio Iwasaki
CHEMISTRY LETTERS, CHEMICAL SOC JAPAN, 38(5) 408 - 409, May 2009 - ブロックコポリマーテンプレート法による高規則性金属ナノ電極アレイの作製
波多野慎悟; 彌田智一; LI Jingze
高分子学会予稿集(CD-ROM), 58(2 Disk1), 2009 - 連結点修飾ブロック共重合体の合成と機能-シリンダー相界面へのポルフィリンの導入
田邉貴文; 浅岡定幸; 彌田智一; 鈴木幸光; 波多野慎悟
高分子学会予稿集(CD-ROM), 58(2 Disk1), 2009 - マイクログラビア法によるブロックコポリマーテンプレート薄膜の大面積製膜
山野辺由美恵; 中島大志; 菅谷卓生; 波多野慎悟; 伊藤香織; 小村元憲; 彌田智一; 茶木原雄司; 土屋光顕; 落合博
ポリマー材料フォーラム講演予稿集, 18th, 2009 - 植物組織から左巻き金属マイクロコイルを作製−維管束「らせん紋」テンプレート
鎌田香織; 大塚雅之; 中川 勝; 彌田智一
未来材料, 8(8) 2 - 4, 10 Aug. 2008, Introduction commerce magazine - Nanodimple arrays fabricated on SiO2 surfaces by wet etching through block copolymer thin films
Ryoko Watanabe; Kaori Kamata; Tomokazu Iyoda
JAPANESE JOURNAL OF APPLIED PHYSICS, JAPAN SOC APPLIED PHYSICS, 47(6) 5039 - 5041, Jun. 2008 - Nanodimple arrays fabricated on SiO2 surfaces by wet etching through block copolymer thin films
Ryoko Watanabe; Kaori Kamata; Tomokazu Iyoda
JAPANESE JOURNAL OF APPLIED PHYSICS, JAPAN SOC APPLIED PHYSICS, 47(6) 5039 - 5041, Jun. 2008 - Tailored Ag nanoparticle array fabricated by block copolymer photolithography
Jingze Li; Kaori Kamata; Tomokazu Iyoda
THIN SOLID FILMS, ELSEVIER SCIENCE SA, 516(9) 2577 - 2581, Mar. 2008 - Controlled homeotropic and homogeneous orientations for nanoscale phase-separated domain of light-emitting amphiphilic block copolymer bearing a 2,5-diarylthiazole moiety
Atsunori Mori; Junichi Shikuma; Motoi Kinoshita; Tomiki Ikeda; Masahiro Misaki; Yasukiyo Ueda; Motonori Komura; Sadayuki Asaoka; Tomokazu Iyoda
CHEMISTRY LETTERS, CHEMICAL SOC JAPAN, 37(3) 272 - 273, Mar. 2008 - Tailored Ag nanoparticle array fabricated by block copolymer photolithography
Jingze Li; Kaori Kamata; Tomokazu Iyoda
THIN SOLID FILMS, ELSEVIER SCIENCE SA, 516(9) 2577 - 2581, Mar. 2008 - Controlled homeotropic and homogeneous orientations for nanoscale phase-separated domain of light-emitting amphiphilic block copolymer bearing a 2,5-diarylthiazole moiety
Atsunori Mori; Junichi Shikuma; Motoi Kinoshita; Tomiki Ikeda; Masahiro Misaki; Yasukiyo Ueda; Motonori Komura; Sadayuki Asaoka; Tomokazu Iyoda
CHEMISTRY LETTERS, CHEMICAL SOC JAPAN, 37(3) 272 - 273, Mar. 2008 - Highly ordered arrays of mesoporous silica nanorods with tunable aspect ratios from block copolymer thin films
Aihua Chen; Motonori Komura; Kaori Kamata; Tomokazu Iyoda
ADVANCED MATERIALS, WILEY-V C H VERLAG GMBH, 20(4) 763 - +, Feb. 2008 - Highly ordered arrays of mesoporous silica nanorods with tunable aspect ratios from block copolymer thin films
Aihua Chen; Motonori Komura; Kaori Kamata; Tomokazu Iyoda
ADVANCED MATERIALS, WILEY-V C H VERLAG GMBH, 20(4) 763 - +, Feb. 2008 - Smart block copolymer masks with molecule-transport channels for total wet nanopatterning
Ryoko Watanabe; Kaori Kamata; Tomokazu Iyoda
JOURNAL OF MATERIALS CHEMISTRY, ROYAL SOC CHEMISTRY, 18(45) 5482 - 5491, 2008 - Smart block copolymer masks with molecule-transport channels for total wet nanopatterning
Ryoko Watanabe; Kaori Kamata; Tomokazu Iyoda
JOURNAL OF MATERIALS CHEMISTRY, ROYAL SOC CHEMISTRY, 18(45) 5482 - 5491, 2008 - Anisotropic ion conductivity in liquid crystalline diblock copolymer membranes with perpendicularly oriented PEO cylindrical domains
Jingze Li; Kaori Kamata; Motonori Komura; Takeshi Yamada; Hirohisa Yoshida; Tomokazu Iyoda
MACROMOLECULES, AMER CHEMICAL SOC, 40(23) 8125 - 8128, Nov. 2007 - Anisotropic ion conductivity in liquid crystalline diblock copolymer membranes with perpendicularly oriented PEO cylindrical domains
Jingze Li; Kaori Kamata; Motonori Komura; Takeshi Yamada; Hirohisa Yoshida; Tomokazu Iyoda
MACROMOLECULES, AMER CHEMICAL SOC, 40(23) 8125 - 8128, Nov. 2007 - Reliable nanotemplate polymer films with normally aligned nanocylinder structures
彌田 智一; 小村 元憲; 吉田 博久
リガクジャーナル, リガク, 38(1) 4 - 13, Apr. 2007 - アドレッサブル高分子ナノ構造テンプレートを利用したナノ粒子の精密配列への挑戦
渡辺 茂; 彌田 智一
未来材料, エヌ・ティー・エス, 6(10) 10 - 17, Oct. 2006 - Macroscopic parallel nanocylinder array fabrication using a simple rubbing technique
Haifeng Yu; Jingze Li; Tomiki Ikeda; Tomokazu Iyoda
ADVANCED MATERIALS, WILEY-V C H VERLAG GMBH, 18(17) 2213 - +, Sep. 2006 - アクセサブルナノ構造テンプレートを利用した金属ナノ粒子の組織化
渡辺 茂; 藤原 隆太郎; 羽田 正紀; 福井 千春; 岡崎 由香; 李 晶澤; 彌田 智一
Molecular electronics and bioelectronics, 17(3) 213 - 218, 22 Aug. 2006 - Photoinduced alignment of nanocylinders by supramolecular cooperative motions
Haifeng Yu; Tomokazu Iyoda; Tomiki Ikeda
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, AMER CHEMICAL SOC, 128(34) 11010 - 11011, Aug. 2006 - Reliable Nanostructured Templates based on Macromolecular Phase Separation
IYODA Tomokazu
高分子学会予稿集, 55(1) 73 - 75, 24 May 2006 - Redox-conjugated Assembly toward Spin Functional Materials
IYODA Tomokazu
Electrochemistry, 電気化学会, 71(3) 192 - 197, 05 Mar. 2003 - Crystal Structure and Photo-Reaction of a New Coordination Polymer : [Ni(en)_2]_4[Fe(CN)_5NO]_2[Fe(CN)_6]・6H_2O
GU Zhong-Ze; SATO Osamu; EINAGA Yasuaki; KAI Masahiro; IYODA Tomokazu; FUJISHIMA Akira; HASHIMOTO Kazuhito
Bulletin of the Chemical Society of Japan, Chemical Society of Japan, 74(9) 1617 - 1622, 15 Sep. 2001 - Size-dependent Photochemical Anion Recognition by Ion-templated Polyviologen Film
KAMATA Kaori; KAWAI Tadashi; IYODA Tomokazu
Electrochemistry, 電気化学会, 67(12) 1189 - 1191, 05 Dec. 1999 - Electronic States of Cobalt Iron Cyanides Studied by ^<57>Fe Mossbauer Spectroscopy
EINAGA Yasuaki; SATO Osamu; IYODA Tomokazu; KOBAYASHI Yoshio; AMBE Fumitoshi; HASHIMOTO Kazuhito; FUJISHIMA Akira
Chemistry letters, 1997(4) 289 - 290, Apr. 1997 - Molecular Arrangement in an Azobenzene-Terminated Self-Assembled Monolayer Film
WANG Rong; IYODA Tomokazu; JIANG Lei; HASHIMOTO Kazuhito; FUJISHIMA Akira
Chemistry letters, 1996(11) 1005 - 1006, Nov. 1996 - Preparation of Polyviologen-modified TiO_2 by Photocatalytic Polymerization of Bis(4-cyano-1-pyridinio )- P-xylene Dibromide
SAIKA Tetsuyuki; IYODA Tomokazu; SHIMIDZU Takeo
Chemistry letters, 1993(12) 2025 - 2028, 05 Dec. 1993 - メゾスコピックマテリアルをめざした導電性高分子材料のミクロ構造制御 (1991年の化学-9-)
弥田 智一; 清水 剛夫
化学, 化学同人, 46(9) p660 - 661, Sep. 1991 - 有機導電高分子超薄膜
清水 剛夫; 弥田 智一; 福井 謙一
日本化学繊維研究所講演集, 日本化学繊維研究所, (47) p65 - 72, Dec. 1990 - 剛直主鎖構造に着目した高機能性高分子材料 (1989年の化学-12-)
弥田 智一; 清水 剛夫
化学, 化学同人, 44(12) p838 - 839, Dec. 1989 - 選択的輸送能,電導能ならびに可視光増感触媒能を有する分子機能材料--分子素子への具体的研究
清水 剛夫; 弥田 智一
旭硝子工業技術奨励会研究報告, 旭硝子工業技術奨励会, (52) p7 - 15, 1988 - 導電性高分子の機能複合 (1985年の化学-10-)
弥田 智一; 清水 剛夫
化学, 化学同人, 40(10) p686 - 687, Oct. 1985 - 新しい機能材料としての導電性ポリピロ-ル (1983年の化学-10-)
弥田 智一; 清水 剛夫
化学, 化学同人, 39(10) p715 - 717, Oct. 1984 - 高分子修飾電極 (1982年の化学-9-)
清水 剛夫; 弥田 智一
化学, 化学同人, 38(9) p661 - 662, Sep. 1983 - ほか総説・解説50件
- ほか論文250報
Books etc
- 電波吸収材およびシールド材の開発とその応用 『第6章バイオテンプレートプロセスによる微小金属構造吸収体の開発』
シーエムシー出版, 2016 - 超分子材料の設計と応用展開 『第4章3節 ブロックコポリマーテンプレート電解重合による導電性高分子ナノワイヤの作製とナノ集積化プロセス』
シーエムシー出版, 2014 - ボール物理化学 上・下
2014-2015, 化学同人, 2014 - 基礎高分子科学演習編
東京化学同人, 2009 - 精密高分子の基礎と実用化技術 『第4章3節 ミクロ相分離構造の長距離秩序化：大面積製膜できる高信頼性ナノ相分離テンプレート薄膜』
シーエムシー出版, 2008 - ほか計23冊
Research Projects
- Creation of channel-type forward osmosis membrane and construction of an ultimate zero-energy water treatment process
Matsuyama Hideto
The forward osmosis (FO) membrane process is an ultimate energy-saving membrane separation water treatment method that utilizes the phenomenon of spontaneous water movement through osmotic pressure difference. In this study, we created an original, innovative, and highly water-permeable water channel substance specialized for forward osmosis process, created a channel-type FO membrane incorporating the water channel substance, and created a novel ionic liquid-type draw solution (DS) that is temperature-responsive and can be recovered and regenerated by thermal phase separation. We also developed a water treatment process using these membrane and DS, and achieved a significantly energy-saving seawater desalination process that consumes less energy than the conventional reverse osmosis membrane method., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2018/04 -2022/03, Grant-in-Aid for Scientific Research (A), Kobe University - Fabrication Process and Chiral Functions of 3D Metal Nanostructures and Their Chiral Functions
Iyoda Tomokazu
The objective in our study was set to “transcribing asymmetric structure”, “exploiting asymmetric functions”, and “creating asymmetric materials”, by targeting (1) left-handed metal microcoils biotemplated from coiled algae, Spirulina, and (2) chiral silica based on twisted structure of silicon-centered tetrahedrons. The present study has achieved (1) mass production method of left-handed metal microcoils by biotemplate process and their dispersion sheets, which shows highly efficient electromagnetic absorption on millimeter wave and terahertz regions with a giant circular dichroism, (2) chiral template process to fabricate various kinds of optically active inorganic materials by using newly established “chiral silica” from supramolecular complexation between polyethylene imine and chiral organic acids., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2016/06 -2021/03, Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area) - Molecular Grid Wiring for Molecular Circuitry
Iyoda Tomokazu
We proposed a new methodology for one-time and reliable measurement of electric conduction property of a single polymer chain, called molecular grid wiring here, to realize the original motivation of molecular electronic devices. The method replaces the conventional hundreds-to-thousands-times measurement with the nano-gap electrodes by one-time and reliable measurement using a specially fabricated gold nanorod array electrode. The molecular grid wiring is an integrated technique: (1) fabrication of high-density gold nanorod array electrodes, (2) development of surface-initiated/terminated polymerization wiring for pi-conjugated polymers, (3) development of surface-enhanced Raman scattering monitoring of the surface-initiation and surface-terminations of the polymerization wiring, and (4) development of algorithm to derive electric conduction property of a single polymer wire from the gross conductivity., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2016/04 -2019/03, Grant-in-Aid for Scientific Research (A), Doshisha University - Precise synthesis of p-n-junction nano particles by the use of micro fluid device and direct observation of its charge separation
NAGAI Keiji; ABE Toshiyuki; SHINOZAKI Chiharu; AHMAD Bin Fairus Mohd; IYODA Tomokazu
1) The micro fluid device was modified for automatic synthesis operation. 2) By the use of cobalt phthalocyanine/fullerene nano particle, high external quantum efficiency to be unity was observed for the volatile compound mineralization especially for the initial time of light illumination of weak visible light of milli watt/cm2. 3) We have not obtained direct observation of potential structure by the use of Kelvin probe microscopy. 4) But, for the step like p-n junction materials, repeatable deep potential structure at the p-n junction was observed. 5) Furthermore, by the array of the step structure, increased at less bias potential photo anode current. It means the micro deep potential can be applied for macroscopic phenomena., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2014/04 -2017/03, Grant-in-Aid for Scientific Research (C), Tokyo Institute of Technology - Reliable method of the molecular wiring between nanodot arrays using the polymerization
IYODA Tomokazu
A reliable method of the molecular wiring between nanodot electrodes by using the polymerization as an ultimate bottom-up nanofabrication approach was proposed. First, a seed of the polymer, called initiator here, on the one electrode, from which the π-conjugated polymers grow. Second, the terminator is adhered on the other electrode. Both the lift-off from the initiator and touch down to the terminator could be expected in some probability and the resulting bridged π-conjugated polymers work as molecular wires. Concretely, surface-initiated and terminated chain growth condensation polymerization of 4-chloropyridine to yield poly(1,4-pyridinium) as molecular wire were investigated. Such enhanced basicity of the specially designed initiator and terminator control the polymerization in the chain growth manner. The chemical instability of the poly(1,4-pyridinium) due to electron deficient electronic structure should be improved for demonstration of the proposed molecular wiring., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2013/04 -2015/03, Grant-in-Aid for Challenging Exploratory Research, Tokyo Institute of Technology - Fabrication and characterization of three-dimensional resonant metamaterials working at visible light region
TAKUO Tanaka; IYODA Tomokazu; FUJIKAWA Shigenori; KAMATA Kaori
In order to realize the three-dimensional resonant metamaterials, we studied and developed several fabrication techniques. We developed the novel laser fabrication technique that can create three-dimensional arbitral metal structures with 100 nm spatial resolution. We also developed DNA templating technique and metal-particles alignment technique for self-organized formation of resonant structures of metamaterials. Moreover, using electron lithography method and residual stress of metal, we made a three-dimensional metamaterial in 4mm × 4mm area. Self-organized structures of block-co-polymer or biomaterials was used as templates for metamaterial structures. Novel fabrication technique for high aspect ratio metal nano structures, which is termed "nanocoating lithography", was also successfully developed., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2010/04 -2015/03, Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area), The Institute of Physical and Chemical Research - Visible light induced water splitting by the use of layered organophotocatalyst films
NAGAI Keiji; IYODA Tomokazu; ABE Toshiyuki
In the artificial leaf, one of the artificial photosynthesis systems, reverse reaction does not happen due to its two-dimensional separation of the redox reactions. The research project has a aim to design artificial organic leaves system for photocatalytic water splitting using only visible light based on our previous study of polymer film type organophotocatalyis of volatile molecules oxidation. We have succeeded the layering of p-and n-type organic semiconductors on the precisely synthesized block copolymer membrane and investigated its photoelectrochemical behaviors as follows. 1) The optimized temperature of the substances transport in the hydrophilic channel was found to be relatively higher than the room temperature. 2) The temperature dependent photooxidation rate was evaluated for the p-n junction. Furthermore, we have submitted new concept of the one-path flow reactor of organophotocatalyst where the optimized absorbance of each layer was evaluated for the first time., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2012/04 -2014/03, Grant-in-Aid for Challenging Exploratory Research, Tokyo Institute of Technology - Thin film preparation and its extension to photofunctional devices of low-density organic polymer with transparency
NAGAI Keiji; IYODA Tomokazu; HADANO Shingo; ABE Toshiyuki; NORIMATSU Takayoshi
Low density plastic materials have long history and reaches to transparency based on its small pore size less than wavelength of light. In comparison to inorganic aeregel, organic one has small example numbers. In the present project, the size of pore has been minimized to 10 nm. The control of the pore size was investigated from the view point of the gelation to form precursor.As for the photo functionalization, visible light responsive photoctalyst was incorporated to the aerogel. The evaluation of the photocatalysis was done for the oxidation of aldehyde, amine, thiol, and amide, to carbondioxide., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2010 -2012, Grant-in-Aid for Scientific Research (B), Tokyo Institute of Technology - Electromagnetic Responsive Microcoil Fabricated by Biotemplating Process
IYODA Tomokazu
This project has aimed to propose the fabrication process of metal microcoil via helical-shaped biological materials. Helical templates originated from vesicular vessels of Lotus root as well as algal Spirulina successfully generated the metal microcoils. The resulting microcoils were examined to show the specific absorptions in the range of THz wave., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2010 -2011, Grant-in-Aid for Challenging Exploratory Research, Tokyo Institute of Technology - Development of photovoltaic devices based on highly ordered porphyrin array film as artificial light harvesting antenna
ASAOKA Sadayuki; IYODA Tomokazu; YOSHIDA Hirohisa
The amphiphilic liquid crystalline diblock copolymer afforded a highly ordered cylindrical phase segregated nanostructure was used as a template for the site-specific arrangement of the functional molecules, which were regio-specifically introduced at the junction between a hydrophilic and a hydrophobic segments, at the phase segregation interface. The porphyrin units at the junction of diblock copolymer were accumulated at the cylindrical interface to give the circular and/or cylindrical porphyrin arrays similar to the chlorophyll arrays in the natural light harvesting antenna. The thin film of this copolymer generated larger photocurrent than that of the simple mixture of amphiphilic diblock copolymer without porphyrin unit with equal amount of ZnTPP., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2008 -2011, Grant-in-Aid for Scientific Research (B), Kyoto Institute of Technology - Simultaneous Dynamic Measurement of Transcription and Formation Processes of Ultra-anisotropic Cylinder Nanostructures
IYODA Tomokazu; KAMATA Kaori; ASAOKA Sadayuki; YOSHIDA Hirohisa; KOMURA Motonori; NAKAGAWA Masaru; WATANABE Shigeru; NAGAI Keiji; LI Jingze; WANG Feng
We developed the simultaneous evaluation system of grazing incidence small angle X-ray scattering (GISAXS) and spectroscopy in laboratory scale which realizes quick feedback to efficient fabrication process of nanomaterials. This research evolved structure formation of microphase separation of block copolymers freely occurring to the self-assembling process controllable as one likes and channeled the guiding principle and the effective optimization of nanostructured film process instead of vast amounts of exploratory experiments., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2006 -2010, Grant-in-Aid for Scientific Research (S), Tokyo Institute of Technology - 左巻きらせん状植物繊維を鋳型とするギガ・テラヘルツ帯域マイクロコイルの開発
彌田 智一
微小マイクロコイルのサイズは共鳴周波数を決定する重要な構造因子である。中学校などの生物実験で簡単に光学顕微鏡によって容易に確認できる茎や葉中のらせん紋は、数十ミクロンのコイル径をもつ。また、植物の種類やその部位に特有のコイル径・コイルピッチをもつことが知られている。花弁からはさらに一桁小さいコイル径をもつらせん紋が観察されている。本研究では、各種維管束植物からの道管壁であるらせん紋の単離方法を確立し、茎、花弁、葉などの部位依存的なサイズの検討、および得られたらせん紋をテンプレートとする表面導電化プロセスの開発を目的とした。得られた導電性マイクロコイルの電磁気学的特性の評価を通して、高周波帯域に応答する電子デバイスへの応用展開を図る。 (実験及び結果) 1. 維管束植物の導管壁らせん紋の形状観察 地下茎をもつ維管束植物のらせん紋を観察した。次いで、破断面から現れる白色繊維の採取による簡便ならせん紋の単離方法を試みた。その結果、ハスの根(地下茎)すなわちレンコンの破断面から効率よくらせん紋のみを抽出できることがわかった。また地下茎だけではなく、茎からも白色繊維がみられ、数10cmにおよぶより長いらせん紋が得られることがわかった。 2. コイル長の制御 ハス茎の破断面から得られるらせん紋は、組織内から引っ張り出されることにより、本来よりも延伸されてしまう問題があった。今年度、採取したらせん紋を水に浸漬するだけで、コイル形状が復元することを新たに見いだしたことから、引き出す長さによって正確にコイル長制御が可能であることがわかった。 3. らせん紋のテンプレート機能の検討 金、銀、ニッケル、銅などの無電解めっきによる表面金属化を試みた。次いで、得られた金属被覆型らせん紋の電気伝導度測定を行った。いずれもコイル形状を維持したまま、表面金属化を施すことができ、対象金属の電気伝導度に相当するI-V曲線を得ることができた。, 日本学術振興会, 科学研究費助成事業, 2007 -2008, 萌芽研究, 東京工業大学 - Fabrication of Perpendicularly Aligned Nanocylinder Array Structures and Nano-Metallized Materials Using Block Copolymer Films
IYODA Tomokazu; NAKAGAWA Masaru; ASAOKA Sadayuki; KAMATA Kaori; YOSHIDA Hirohisa
A goal of this project was to develop a fabrication process of nano-structured materials with a size ranging to deca-nano meter level (〜10^0 nm), where can not be reached with advanced lithographic techniques. Block copolymer nanostructures are built up with controlled polymerization of well-designed functional monomers and self-assembling of the resulting block copolymers, leading to deca-nano assemblies with two step bottom-up process, i.e., design of functional monomers and self-assembling of block copolymers. In order to elevate this project to the goal, the block copolymers were employed to be utilized as nanotemplates, which can make various kinds of materials nanostructured with specific shapes and sizes exactly same as those of block copolymers. One of advantages of block copolymer systems is to significantly expand processing areas, which can be applied for large area fabrications. During the term of this project, unique block copolymers consisting of hydrophilic polyethylene oxide block (PEO) and hydrophobic polymethacrylate with liquid crsytallin side chains were successively produced and the highly ordered hexagonal cylindrical phase structures were reproductively fabricated in the films. The various kinds of materials such as metals, metal oxides, ceramics, semiconductors, and polymers were utilized to incorporate into the PEO domains. The resulting hybrid thin film exhibited the hexagonal cylinder array structures which had exactly same nano-futures with the block copolymers on the substrates. Furthermore, nanostructure-specific functions in electric, electronic, magnetic, and optical properties were successfully extracted. The hybrid thin film especially showed anisotropic electrochemical conductivity through the functionalized PEO cylinders, which could be essential on new device fabrications such as biofilter, organic solar cell, artificial ion-channel, and anisotropically conducting nanowire., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2003 -2005, Grant-in-Aid for Scientific Research (A), Tokyo Institute of Technology - レドックス機能共役分子の動的ナノ組織化と電子構造制御
彌田 智一; 中川 勝
われわれは、光や電気などに応答する外場応答分子を機能ユニットとして強く相互作用させながら集積する共役組織化材料の開発を行っている。分子を機能ユニットとして集積する以上、分子単独では実現できない組織体構造に特異な電子機能を目指している。本研究では、ピリジニウム基をレドックス機能ユニットとする共役組織体を合成し、多段階レドックス過程、多電子還元種のハイスピン状態、およびスピン間相互作用に着目した相互作用経路の解析を目標とした。 βジケトンの1位と3位にピリジニウム基を置換したレドックス活性βジケトンを合成した。錯形成によってエノレート共役系の電子状態が変化するため、金属イオンによる1位と3位に置換したピリジニウム基間の(配位子内)相互作用の制御が可能である。さらに、金属イオンとのd-π相互作用を介した配位子間の相互作用も期待できるため、ピリジニウムβジケトン配位子は共役組織化の多様なリンカーとしてだけでなく、相互作用経路を理解するための有用な材料と言える。CU^<2+>、Ni^<2+>、Zn^<2+>との1:2型の金属錯体の還元電位は金属イオンに強く依存した。新たにピリジニウム基とフェニル基を置換したβジケトン配位子を合成し、ふたつのピリジニウム基の配置に関する異性体の電子構造をピリジニルジラジカルの磁気特性として解析した。 ピリジニウム基のN位にデンドロンを導入したβジケトン金属錯体を設計し、これを新たなビルディングブロックとする2次的な自己組織化を検討した。その結果、(1)基板に垂直配向した金属錯体の積層シリンダー構造、(2)気/水界面に展開した安定な単分子膜、および(3)溶媒蒸発過程の散逸構造が転写された構造形成が確認された。これら2次集積体は、構成要素である金属錯体の特異な光・電子・磁性機能を反映した新規な分子機能材料として期待される。, 日本学術振興会, 科学研究費助成事業, 2002 -2003, 特定領域研究, 東京工業大学 - ブロック共重合体のミクロ相分離を利用した電子・イオンチャンネルの作製
彌田 智一; 浅岡 定幸; 中川 勝
重合度の異なる3種のポリエチレングリコールの片末端を修飾したα-ハロゲノ酢酸エステルをマクロ開始剤として、液晶性アゾベンゼンを側鎖にもつメタクリレートモノマーをビピリジン銅錯体触媒によってリビングラジカル重合を行い、11種類の両親媒性ジブロック共重合体を合成した。これらの共重合シーケンスは重合時間およびモノマー触媒比によって制御され、狭い分子量分布で重合が進行することがわかった。示差熱測定、偏光顕微鏡観察、およびX線小角散乱より、これらブロック共重合体はポリエチレングリコールセグメントの融点(約40℃)から等方性液体への転移点(約120℃)の間に3種のスメクティック液晶相を示した。これらブロック共重合体の数%トルエン溶液から作製したスピンコート薄膜は、100℃程度で数時間の熱処理および四酸化ルテニウム蒸気による染色処理により、直径数ナノメートルのポリエチレングリコールからなるナノシリンダーが液晶性アゾベンゼンを側鎖にもつポリメタクリレートからなる"海"に三角格子を形成するナノ相分離構造を透過型電子顕微鏡観察によって再現性良く与えた。また、X線小角散乱においてもヘキサゴナルパッキングしたシリンダーアレイ構造を示唆する高次の回折ピークを与え、このナノ相分離構造が薄膜全体に形成されていることがわかった。従来のナノ相分離ではシリンダーアレイ構造がランダムに配向したマルチドメインを与えるのに対して、このブロック共重合体薄膜ではナノシリンダーアレイ構造が基板に対して垂直配向することを明らかにした。特に、2ミクロン厚の膜を貫通するナノシリンダーアレイ構造を断面TEM像によって直接捉えることに成功した。, 日本学術振興会, 科学研究費助成事業, 2002 -2002, 特定領域研究, 東京工業大学 - ビラジカルーキノイド結合異性協奏的相互変換性材料
阿部 二朗; 浅岡 定幸; 彌田 智一
分子内に二つの不対電子を有する三重項ビラジカル分子は磁気モーメントを有するために、ビラジカル分子間の強磁性的相互作用は磁気秩序の発現をもたらす。構成単位間の共同的な相互作用は、電子間、分子間、物質間、細胞間、個体間のようなさまざまな階層において見ることができるように、自然界の秩序構成に極めて重要な現象である。強磁性的相互作用は電子スピン間の共同現象として捉えることができ、まさに電子という最小単位間のシンクロナイゼーションであり、古くから主に物理学者の研究対象として扱われてきた。本研究課題では分子内のスピン間相互作用が分子間のスピン間相互作用に及ぼす影響について検討し、新たな電子物性発現の可能性について考えてみた。特に、従来の研究では全く扱われていなかったπ電子共役一重項ビラジカル分子間の相互作用について新しい可能性を見いだすことを試みた。本研究では分子内の二つのイミダゾリルラジカルがベンゼン環を介して共役した化合物(BDPI-2Y、BDPI-4Y)がビラジカル状態とキノイド状態の熱平衡になっていることを見いだした。さらに、BDPI-2YおよびBDPI-4Yは、非局在π電子共役系化合物としては初めての安定基底一重項ビラジカル状態分子であることを明らかにすることができた。さらに、分子間には強いπスタッキングが形成されていることも単結晶X線構造解析により見いだした。これまでに一重項ビラジカル分子の分子間相互作用に関する研究の報告例はなく、結晶中において形成される一重項ビラジカルバンド構造が電子物性に与える影響については興味のもたれるところである。今後さらなる研究を重ねることで、一重項ビラジカル分子間のシンクロナイゼーションによる未知な物性発現が期待できる。, 日本学術振興会, 科学研究費助成事業, 2001 -2002, 特定領域研究, 東京都立大学 - マルチレドックスを有する金属錯体の会合性混合原子価状態と共役機能
彌田 智一; 浅岡 定幸; 阿部 二朗; 松下 未知雄
多座配位子と金属イオンの連続的な錯形成反応は、超分子化合物を構築する強力な自己組織化法の一つである。古くから金属イオンの溶媒抽出剤に用いられてきたβジケトンは、1価アニオンとして各種金属イオンと安定な無電荷金属錯体を形成する。得られた金属錯体は、複数の擬芳香属性エノレート6員環が金属イオンを共有した構造をもち、βジケトン1,3位に置換した機能単位間の特異な相互作用経路が確保される。外場応答機能を有するインテリジェントな配位子としてピリジニウム基を共役組織化した一連のレドックス活性βジケトン配位子を設計した。これは各種金属イオンと容易に錯形成し、エノレート構造を介した配位子内共役系と金属イオンとのd-π相互作用を含む配位子間共役系の2種類の相互作用経路が考えられる。この配位子は約400mVに分裂した可逆な2段階還元過程を示した。亜鉛、銅、ニッケル、パラジウム錯体は、各金属イオンとのd-π相互作用を反映して様々な分裂幅をもつ4段階還元過程を示した。平面構造のパラジウム錯体において、2つのピリジニウム基を配位子内、パラジウムイオンを介した配位子間シス配置、配位子間トランス配置を合成した。2電子還元体の低温ESR測定より、ピリジニウム基の配置に対応したスピン間距離を算出した。さらに、三重項シグナル強度の温度依存性より、配位子内および配位子間トランス配置において基底三重項、配位子間シス配置は熱励起三重項であることがわかった。特に、配位子間に配置されたピリジニルラジカルの相互作用経路において、パラジウムイオンのd軌道を共有するトランス配置と直交する2つのd軌道を介して相互作用するシス配置でスピン分極の反転が示唆された。, 日本学術振興会, 科学研究費助成事業, 2000 -2001, 萌芽的研究, 東京都立大学 - Conjugated Assembly of Viologens with Spin Manipulation
IYODA Tomokazu; KAWAI Tadashi; ASAOKA Sadayuki; ABE Jiro
Multi-step redox processes are reported in several it-conjugated assemblies of photoelectrochemically active pyridinium units, leading to function-integrated molecular assembly. The strategy has been set to strongly link each redox active unit and then to understand the correlated redox properties, (1) The arylene-linked viologen dimers showed four-step reduction processes in which mono-radical, triplet diradical, half and full quinoid structures are controlled photoelectrochemically. (2) The coordination assembly of bidentate pyridyl pyridinium ligands with paramagnetic metal ions exhibited photochemically tunable spin ordering through antiferromagnetic coupling of the intervening pyridyl radicals. (3) The d-π-dependent multi-step redox processes were demonstrated in various bis(pyridinio)-β-diketone metal complexes, together with their discotic columnar structures. The interaction path analysis giving a guideline for the coming molecular devices with electronic communication will be discussed. Interestingly, triplet ground state was confirmed in inter-ligand trans-configuration and intra-ligand configuration of two pyridinylradicals, while the inter-ligand cis-configuration was thermally excited triplet state, i.e., singlet biradical in the ground state. The electrochemical control of both geometric and electronic structures of the helical conjugated polymers will be also introduced by precisely fabricating pyridinium units in poly (arylisocyanide). Additionally, new modification of conducting polymers will be also introduced by anodic nucleophilic substitution of pyridine derivatives. Remarkable progress has been made in the study of well-designed coordination polymers to take the major place in supramolecular chemistry, which is providing various kinds of nano-structures, in several-to-decades nanometer scales, by self-assembly of small building blocks., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 1999 -2001, Grant-in-Aid for Scientific Research (A), Tokyo Metropolitan University - ビオローゲン共役組織体の多段階レドックスと電子機能
彌田 智一; 河合 是; 浅岡 定幸; 阿部 二朗; 松下 未知雄
本研究では、光電気化学的にレドックス状態を制御できる複数のピリジニウム基をπ共役系を介して連結し(共役組織化)、得られた組織体構造と多段階レドックスの相関を理解し、ラジカル生成・消滅の制御を通じた外場応答性の分子磁性を実現することにある。ヘテロ芳香族環で連結したビオローゲン2量体を合成し、光電気化学的な4段階レドックス過程とその中間体ラジカル種の磁気的性質を明らかにした。レドックス機能単位の共役組織化が多段階レドックスプロセスの実現に有効であること、ならびにメタフェニレン同様、奇数個の結合をもつ4,6-ピリミジレンが強磁性的相互作用のリンカーとなることがわかった。この2量体モデルの知見からレドックス活性でスピン多重度の高いポリラジカルの生成をめざし、4-シアノピリジニウムの還元2量化を利用した電解還元重合を試み、重合度は低いものの全共役ポリビオローゲン膜の合成に成功した。可逆な酸化還元過程を示すピリジニウムやビオローゲンに金属配位サイトを共役させたレドックス活性配位子を設計し、各種金属イオンとの配位高分子を合成した。なかでも、銅イオンとの配位高分子については、最大15%の光誘起磁化が観測された。結晶表面のXPS測定より、塩化物イオンからピリジニウム基への結晶内光誘起電子移動が確認された。1次元配位高分子がπ-π相互作用により直交積層化したlogs-stacking構造は、包接可能な巨大なチャンネル(12Å四方)を有し、相互貫入を防ぐメゾポーラス構造を構築する2段階自己組織化法(1D-to-3D)を提供する。さらに、主骨格を維持したまま配位子の正電荷を利用したアニオン交換が容易である。第三物質の包接および可逆的なアニオン交換を利用した複合材料化が期待できる。, 日本学術振興会, 科学研究費助成事業, 1999 -2001, 特定領域研究(B), 東京都立大学 - Synthesis of σ-π conjugated non-linear optical materials by olefin metathesis
KAWAI Tadashi; IYODA Tomokazu
σ-π hybrid conjugated molecules have been expected as new organic materials with optical non-linearities with high transparency. Poly (silylene-vinylene) s are one of these candidates. Syntheses of poly (silylene-vinylene) s by olefin metathesis were attempted for the first time. New compounds, oligo (silylene-vinylene) s (dimer〜oligomer) of linear type were synthesized by self-metathesis of tetravinylsilane and dimethyldlvinylsilane, and 1,4-bis(dimethylvinylsilyl) benzene using Re_2O_7-Al_2O_3 catalyst under mild reaction conditions. It was found they are σ-π hybrid conjugated molecules with high transparency, but higher oligomer and polymer could not be obtained. The spectroscopic studies revealed that their optical nonlinearities are weak. Ferrocene is known as one of interesting compounds with optical non-linearities. Novel selective synthesis of π -conjugated molecules with various interesting functional group by cross-metathesis were attempted for the two systems over Grubbs and Schrock catalyst. (1) Cross-metathesis of various kinds of vinylarene and vinylhetroaromatics with 1 -octene, and (2) Cross-metathesis reactions between vinylferrocene and a series of vinylarene. Self -metathesis of vinylferrocene was not occurred, but Interestingly cross-metathesis proceeded to yield heterodimer (cross-metathesis product) with high selectivity (73-100 %) in the presence of the Schrock catalyst. The mechanism of selective heterodimer formation was proposed., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 1998 -2001, Grant-in-Aid for Scientific Research (C), TOKYO METROPOLITAN UNIVERSITY - 電子移動平衡を介する構造規制界面の設計
彌田 智一; 松下 未知雄; 河合 是
本研究では、光電気化学的にレドックス制御できるビオローゲンを電極表面に組織化する事により、その組織体構造と、ビオローゲンが持つ多段階レドックスを利用した機能性電極の開発を目的としている。本年度は、分岐型ビオローゲンポリマーを用いたアニオン認識について研究を行った。 還元条件下でシアノピリジニウムが2分子カップリングしてビオローゲンを生成する反応を利用し、ベンゼン環境の1,3,5位に4-シアノピジニウムが置換した化合物を合成し、電極上で還元することによって、ビオローゲンを主鎖に含む分岐型の高分子を合成した。ビオローゲンが2価のカチオンであるために、この高分子膜にはアニオンが取り込まれる。この膜をカップリング時に用いたイオンよりも小さいアニオンの塩が含まれる電解質中に浸した場合、ビオローゲンの持つ2波の酸化還元波が観察されるが、大きアニオンを用いた場合では酸化還元波を示さない。このことは、電解時にイオンを取り込むことで作られた空隙のサイズが、用いたイオンの大きさによって決まることを示している。また、ハロゲン化物イオンを用いた場合、光照射によりアニオンからビオローゲンに電子移動が起こり、イオンラジカルの生成と同時に青色に呈色する。これを利用することで、電極反応に限らず、光反応によってもアニオンにサイズを認識できる材料を構築する事が出来た。アニオンの認識については、金属カチオンの認識に比べて例が少なく、このような単純な分子を用いて認識を行えるとともに、呈色反応を利用してその検出が行えることは、非常に興味深い。, 日本学術振興会, 科学研究費助成事業, 1999 -1999, 特定領域研究(A), 東京都立大学 - 分子不斉に基づく結晶工学を利用した高温有機弱強磁性体の構築
松下 未知雄; 河合 是; 鈴木 剛彦; 彌田 智一
本研究の目的は、強い反強磁性的相互作用を持つ有機ラジカルの結晶に分子不斉を導入することにより、高い転移温度を持つ有機弱強磁性体を構築することにある。分子設計の方針としては、有機ドナー分子やアクセプター分子母体とし、その酸化・還元によって生じるイオンラジカルを用いることとした。このアプローチには、不安定な不対電子をあらわに扱うことなく、最後に電解法により結晶化と同時に発生させられるという合成上のメリットと、これまでの有機導電性物質の研究により開拓された合成手法を利用できるため誘導化が容易であるという2つの利点がある。そのなかでも特に、ピオローゲンは、4,4′-ビピリジンがらハロゲンがアルキルを用いた4級化反応により容易に調製することが出来る。そこで、不斉置換基として2-メチルブチル基を導入した2-メチルブチルビオローゲン、及び、N-メチル-N′-(2-メチルブチル)-ビオローゲンを合成した。これらの分子はメチルビオローゲンとほとんど同じ酸化還元電位を持ち、良好なアクセプター分子であることがわかった。しがしながら、これらの分子のラジカルイオン塩を調製する目的で、アセトニトリル中、テトラブチルアンモニウム過塩素酸塩を電解質として電解結晶化を試みたものの、結晶は得られなかった。この結果は、比較的長いアルキル鎖の導入による溶解度の向上と、不斉の導入により分子の対称性が低下したために結晶化しづらくなった両方の原因によるものと考えられる。現在、より確実に電解結晶化可能な分子として、TTFに2-メチルブチルチオ基を導入した3種類の分子の調製を行っている。これらの分子は、一電子酸化により目的とする不斉ラジカル分子結晶を与えるとともに、部分酸化されて混合原子価状態が生成された場合、不斉な環境を有する導電性物質を与えると考えられ、磁性にとどまらず、興味深い新規物性の発現が期待される。, 日本学術振興会, 科学研究費助成事業, 1998 -1998, 萌芽的研究, 東京都立大学 - 電子移動平衡を介する構造規制界面の設計
彌田 智一; 松下 未知雄; 鈴木 剛彦; 河合 定
本研究は、外場や外部刺激に応答するラジカルイオン対の電子移動平衡を構造規制された電極界面に実現し、そのへテロ混合原子価状態の変化をセンシングモードとする新しいタイプの電極表面修飾を創製することを目的とする。そのためには、界面における効率よいセンシング反応場の構築が不可欠である。本研究では、光電気化学的に活性なビオローゲンを機能性単位とする分岐型高分子薄膜の電解重合において、対アニオンによる分子インプリント法の適用を試みた。この分岐型ビオローゲン高分子薄膜は、対アニオンによる空隙サイズの制御とビオローゲン骨格との特異的な電子的相互作用が期待できる。今年度は、このインプリント電解重合によって作製された分岐型ビオローゲン高分子薄膜によるアニオンのサイズ認識を電気化学的かつ分光学的に検出した。これは、薄膜内の酸化還元過程における対アニオンの移動が形成された空隙サイズによって律速されるために起こると考えられる。直鎖状の高分子ビオローゲンではほとんど対アニオンの認識はできなかった。さらに、同じサイズと構造を有するアニオン性金属錯体とビオローゲンとの電荷移動相互作用を介した電子状態の認識を行った。以上の結果は、従来の架橋高分子樹脂による分子インプリントとは異なり、インプリント薄膜を任意の膜厚で制御できることと被認識物質の大きさ・構造に加えて電子状態を認識できる多次元センシングを実現した。, 日本学術振興会, 科学研究費助成事業, 1998 -1998, 特定領域研究(A), 東京都立大学 - イソニトリル架橋型多岐高分子錯体の合成と物性
彌田 智一; 松下 未知雄; 鈴木 剛彦; 河合 定
本研究目的は、機能単位を適当な相互作用のもと組織化させることにより、個々の機能単位の単なる足し合わせでは得られない組織体機能(ここではインタラクティブ機能)を実現することにある。特にここでは機能単位を共役系で連結する共役組織化を採用した。これは、数多くのナノメーターレベルの特異な構造体を創製してきた超分子化学を合目的に展開するアプローチと考えられる。 ビオローゲンは適度な還元電位を持つアクセプターであり、光・電気化学的な還元によりイオンラジカルを生成し、エレクトロクロミズム・フォトクロミズムを示す。このような電子的に特徴ある機能単位をπ共役系によって連結し、組織化した場合、多段階の酸化還元挙動、電子スピンの整列による多重項種の生成、その光電気化学的な制御など、興味深い物性の発現が期待される。本研究では、モデル系として2個のビオローゲンをπ共役系で連結した以下のようなダイマー分子について、光・電気化学的性質と、多段階還元過程において生成するイオンラジカルの磁気的性質を検討した。 以上の結果から、ビオローゲンダイマー〓においては、光・電気化学的に生成したラジカル間の磁気的相互作用を、カプラーであるπ共役系の置換位置によって制御できることが明らかになった。また、ユニット間のπ共役系のねじれが小さく、相互作用が大きいため、より大きな共役組織体を合成した場合でも、十分に相互作用の伝達が期待できる。, 日本学術振興会, 科学研究費助成事業, 1998 -1998, 特定領域研究(A), 東京都立大学 - 電子移動平衡を介する構造規則制界面の設計
彌田 智一; 鈴木 剛彦; 河合 是
本研究は、外場や外部刺激に敏感なラジカルイオン対の電子移動平衡を構造規制された電極界面に実現し、そのヘテロ混合原子価状態の変化をセンシングモードとする新しいタイプの電極表面修飾を創製するを目的とする。そのためには、界面における包接結晶の成長と電子移動平衡による擬縮退系の実現が挙げられる。今年度は、(1)π共役系分子を水素結合介したネットワーク形成できる包接結晶の探索、(2)光電気化学的なビラジカル生成が可能なアリールピリジウム共役組織体の合成、(3)原子間力顕微鏡による結晶表面の分子配列転移の観察を行った。双頭型ジホスホニウム塩ホストを合成し、水酸基を2個もつ各種フェノール誘導体ゲストとの包接結晶化を試みた。メタノール溶液あるいは水溶液から高品位な単結晶が得られるが、その収率と速度は双頭型ホストホスホニウム間距離とゲストの組み合わせに大きく依存した。X線結晶構造解析より、フェノール水酸基とハロゲン化物イオンとの水素結合が結晶全体に擬一次元的に発達したネットワーク構造が明らかとなった。特に、結晶中のホストの配座と臭化物イオンの配置は変化していないにもかかわらず、包接されたゲストによってこのネットワーク構造は大きく異なる。これらのネットワーク構造は、水素結合を介したフェノール誘導体の架橋と見なすことができ、隣接するπ共役系の相互作用による電子的機能の発現が期待される。ホスホニウム塩を電解質に用いたベンゾキノン水溶液の電解では、生成したヒドロキノンが電極表面と電解液中に包接結晶を与えた。この電解包接化は高度に構造規制された電極修飾プロセスとして利用できるものと考えられる。, 日本学術振興会, 科学研究費助成事業, 1997 -1997, 重点領域研究, 東京都立大学 - イソニトリル架橋多核錯体高分子の合成と物性
彌田 智一; 鈴木 剛彦; 河合 是
本研究目的は、混合原子価状態が興味深い固体物性の発現に重要な役割を果たしているシアナイド架橋多核金属錯体高分子を対象に、機能性イソニトリル配位子の置換による誘導化を計り、その電子状態を反映した電気的・磁気的物性を制御することを目的とする。今年度は、結晶水によって混合原子価状態が変化する一次元電導性白金シアノ錯体高分子に着目し、原子間力顕微鏡を用いて単結晶表面の分子配列転移について検討した。結晶表面の分子配列はバルクと異なり、外部刺激により配列転移が容易に誘起されることが期待される。このような表面の構造変化と物性との相関は、新たな相転移機能材料の創製に基本的な知見を与える。本研究では、一次元電導体KCP(Br)単結晶を対象に、原子間力顕微鏡を用いてチップによる表面修飾過程における分子像観察を行った。さらに、電導度低下の原因である脱結晶水が白金分子配列の無秩序化を誘起していることを直接観察したので報告する。分子性結晶内部の分子に比べて、最表面の分子は比較的動きやすい性質を表面の分子配列しか観察しないAFMを用いて、表面再構成や外場による配列転移を紹介した。これらはごく限られた結晶に特有の現象ではなく、最近のわれわれの結果では、アゾベンゼン、チオインジゴ、アントラセンなどの結晶や金属カルコゲナイドヘのインターカレーションなど多種多様な結晶で観察されている。これらの表面分子配列転移は、まさに新しいタイプの相転移機能の利用形態の一つであり、表面加工と併せて最表面分子層の工学的応用につながるものと考えられる。, 日本学術振興会, 科学研究費助成事業, 1997 -1997, 重点領域研究, 東京都立大学 - Multi-nuclear Polymeric Complex bridged Isonitriles
IYODA Tomokazu; SUZUKI Takehiko; KAWAI Tadashi
The objective in this study is to replace cyanide ligands of mixed valence polynuclear metal complexes with specific electric, magnetic, and optical properties by functional isonitrile ligands which have potential to provide another functionality. In this fiscal year, structural phase transition of molecular arrangement on a single crystal of one-dimensional platinum complex with high electric conductivity. (1) Molecular-resolution images of an electrochemically prepared single crystal of potassium tetracyanoplatinate bromide complex (KCP(Br)) were recorded by atomic force microscopy (AFM) during a tip-induced surface modification process in which the probing tip scraped off the topmost surface layr by layr. Two kinds of molecular images on the (010) face of the KCP(Br) crystal correspond to alternate layred structures consisting of tetracyanoplatinate layrs and interstitial ions. One molecular arrangement was assigned to cyanide ligands and interstitial K^+ and Br^- ions, in good agreement with that obtained from X-ray diffraction. The other corresponds to rearranged interstitial ion (K^+ and Br^-) layr. (2) Molecular-resolution images by atomic force microscopy (AFM) revealed reversible ordering-disordering transition of molecular arrangements on the (010) face of a single crystal of potassium tetracyanoplatinate bromide (KCP(Br)) during dehydration and hydration treatments. The intracolumnar Pt-Pt distance along c-axis in the dehydrated crystal lengthens by a factor of 30% with considerable disordering, and the re-hydrated crystal shows well-ordered arrangement like the as-grown crystal, while the intercolumnar structures along the orthogonal direction is not varied. In large-scale AFM images showed that the monolayr terraces reversibly slides in the c-axis direction during the dehydration-hydration treatments, reflecting the molecular dislocation along c-axis. These surface structural change is quite consistent with well-known dehydration effect in KCP(Br) crystal, i.e., the lattice disordering and the decreasing conductivity., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 1996 -1997, Grant-in-Aid for Scientific Research (B), TOKYO METROPOLITAN UNIVERSITY - イソニトリル架橋型多核高分子錯体の合成と物性
彌田 智一; 鈴木 剛彦; 河合 是; 佐藤 治
本研究目的は、混合原子価状態が興味深い固体物性の発現に重要な役割を果しているシアナイド架橋多核金属錯体高分子を対象に、機能性イソニトリル配位子の置換による誘導化を計り、その電子状態を反映した電気的・磁気的物性を制御することを目的とする。これまでに、本研究者らは、複数の刺激応答単位を合わせ持つMulti-mode Chemical Transducerの考え方をフォトクロミズムとエレクトロクロミズムを対象にしたアゾ・キノン分子を合成して実証した。ここでは、このような分子機能の多機能化の考え方を機能単位集団系の複雑な相互作用によって発現される電導性・磁性などの固体物性への展開を計るため、合成化学的な誘導化を手法に多核高分子錯体の物性制御を行う。その対象として、架橋シアノ配位子により構成された混合原子価状態の多核金属錯体高分子が適当である。プルシアンブルー、一次元白金錯体、軸結合型フタロシアニン錯体に代表される多核金属錯体高分子は、共役系配位子を介した強相関電子系を生成し、興味深い電導性・磁性や特異な光電気化学機能を発現することが知られている。これら多核シアナイド金属錯体高分子の架橋配位子を、合成化学的に誘導化が容易なイソニトリル化合物によって置換し、金属間の距離、配向、共役の程度を任意に制御することは、高分子ナノ組織体である多核金属錯体の混合原子価状態の工学を可能にすると考えられる。本研究では、スピン集団系の相転移として分子性磁性の制御をめざしてプルシアンブルー類似体を主に金属置換によって誘導化を計り、電気化学的磁気特性制御や光制御に成功した。さらに、ポルフィリン-TCNE高分子の低次元磁性材料の大きな結晶磁気異方性を明らかにした。, 日本学術振興会, 科学研究費助成事業, 1996 -1996, 重点領域研究, 東京都立大学 - Ultra-anisotropic Conducting Molecular Device by Precise Control of Polymerization
SHIMIDZU Takeo; SEGAWA Hiroshi; IYODA Tomokazu
The preparative method for organic thin films of various functional materials, especially those with specific ultra-fine structures, is one of the significant strategy for realizing a coming molecular electronic device. Novel type of functions reflecting in ultra- fine film structures could be expected when the designed structural dimension reaches less than hundreds angstrom order. Our aim was to do those by using conducting polymer with interesting electric and optical properties as a hopeful material and Langmuir-Blodgett technique as a basic preparative method. 1. Several amphiphilic pyrrole derivatives were synthesized. Their monomeric Langmuir-Blodgett films were treated with unique electropolymerization, followed by conducting polymer LB films having layered structure of conducting polypyrrole and insulating long alkyl chain layers. The resulting LB film showed 10-order anisotropy between lateral and perpendicular conductivities. The layered structure was confirmed by electron microscopic observation of the cross section and X-ray diffraction patterns. 2. The above method was applied to other conducting polymers, polyaniline and polythiophene, so as to generalize our successful result. In case of polyaniline, pH dependence of conductivity is shown in polymerization. In case of polythiophene, high conductivity and stability towards air and moisture are expected. Another method is first to prepare amorphous polypyrrole with a long alkyl dopant through electrochemically anodic doping which we have reported previously, and then to obtain its LB film with 3-order anisotropy of conductivity. The above results provides new approach to design conducting polymer ultra-thin films and to gift to them new type of functions, including quantum-mechanical functions., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 1988 -1989, Grant-in-Aid for General Scientific Research (B), KYOTO UNIVERSITY - Study on Highly Organized Supramolecular System Aimed for Multifunctional Molecular Devices
HONDA Kenichi; IYODA Tomokazu; KURODA Yasuhisa; YAMAMURA Kazuo; SAITO Isao
The aim of the present study is to constitute highly organized supramolecular systems having ultimate multi-functions, on the basis of the principles of molecular recognition and multi-modification. 1 Based on the principle of molecular recognition, the following subjects are investigated. (1) Precise analyses of interaction between fluxed for design of supramolecular system consisting of multi-component and multi-phase. (2) Multiple and precise recognition for structure and base sequence of DNA, and its artificial construction. (3) Aftificial enzyme controlling electron and molecular fluxed by the interrecognition. (4) Inter-phasic electron transfer in artificial liposome fhrough flux conjugation to optimize electron and molecular fluxes. (5) Supramolecular system of informational conversion by monolayer responsive for molecular recognition and photo-responsive aftificial liposome. (6) Responsive function of molecular assembly having self-organization. 2 Based on the principle of multi-modification, the following subjects are investigated. (1) Design for multi-mode chemical signal transducer. (2) Structual consideration of intermolecular electron transfer kinetics, and twophoton energy-transfer-type sensitization of semiconductor catalyst/electrode. (3) Structual control of conducting polymer matrices by langmuir blodgett technique and electropolymerization by potential sweep method. (4) Functionalization and hybridization of conducting polymer through anodic doping proocess., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 1986 -1988, Grant-in-Aid for Specially Promoted Research, Kyoto University - 増感触媒による界面光誘起電子移行の分子論的設計
清水 剛夫; 彌田 智一; 中西 浩一郎
光応答材料は多種多様の情報形態の変換, 伝達, 記録, 再生のための新材料として, 実用されている電子磁気材料を機能的に凌駕するものとして, 将来に期待をおかれている. 本研究は, この材料実現のために, 広域波長増感触媒による界面光誘起電子移行の分子論的設計と制御を中心に, 具体的に, 機能中心の精密分子設計, 分子集合状態の設計制御可能な材料化方法, 分子レベルでの応答機能を保持できるマトリックス, 分子, 分子集合体, 材料などの接合における界面現象の制御とその設計の4つの課題をもって, 研究の展開を行ってきた. 昭和62年度は, 昨年度に実行してきた(1)多次元情報変換分子の設計とその共役機能, (2)導電性ポリピロールLB膜の調製, (3)電気化学的ドーピングを利用した導電性高分子修飾電極の機能複合化の予備的研究結果をふまえて, これらを定量的に検討し, その材料化をはかるとともに, 新たに, 可視光増感酸化重合による導電性高分子薄膜の調製を(4)として加え, 以下の研究実績を得た. すなわち(1)多次元情報変換分子として, 光情報と化学(酸化還元)情報の2つに共役的に応答する2ビット型刺激応分子と, 2つの性質の異なる化学情報(酸化還元と酸アルカリ)に共役的に応答する2ビット刺激応答高分子の2つを創製した. (2)両親媒性ピロール誘導体LB膜とその積層膜の特異的な重合による導電性異方高分子膜の定量的評価と, 両親媒性アニリンLB膜の調製とアモルファス重合体のLB膜構成を加え, さらに, これらLB膜の分子論的転写の可能性を示した. (3)電気化学的ドーピングを利用した導電性高分子の機能の複合化を実現した. (4)導電性高分子のミクロファブリケーションとして, 可視光増感酸化重合法を開発し, 酸化的電子移動機構を色素増感系に適用して, ポリピロールの二次元パターン形成を実行し, 導電性高分子の三次元リソグラフィの可能性を示した., 日本学術振興会, 科学研究費助成事業, 1986 -1987, 特定研究, 京都大学