Researcher Profile and Settings

researchmap

https://researchmap.jp/read0079278

Research Interests

• colloid and interface chemistry
• atomic force microscope
• Surface Force
• dispersion system
• 表面ナノ構造
• Fine Particle

Research Areas

• Nanotechnology/Materials / Functional solid-state chemistry
• Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Transfer phenomena and unit operations

Research Experience

• Doshisha University, Faculty of Science and Engineering, Professor, 2023/04 - Today
• Okayama University, 自然科学研究科, Associate Professor, 2012/04 - 2023/03
• The Australian National University, Visiting Fellow, 2017/06 - 2017/12
• National Institute of Advanced Industrial Science and Technology, 研究員, 2001/04 - 2012/03
• University of Leeds, Visiting Scientist, 2006/02 - 2007/02
• National Institute for Resources and Environment, Research Scientist, 2000/04 - 2001/03

Education

• Kyoto University, 工学研究科, 化学工学専攻, 1997/04 - 2000/03
• Kyoto University, 工学研究科, 環境地球工学専攻, 1994/04 - 1996/03
• Kyoto University, Faculty of Engineering, 資源工学科, 1990/04 - 1994/03

Published Papers

• Avoidance of crystallization of hydrophobic drugs in an amorphous solid dispersion during spray-drying and storage
  Rina Yamamoto; Hiroyuki Imanaka; Naoyuki Ishida; Koreyoshi Imamura
  Drying Technology, Informa UK Limited, 42(13) 2022 - 2031, 20 Sep. 2024, Scientific journal
  

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• Evaluation of Hydrophobic Attraction between Polystyrene Layer and Silanated Silica Surface by Atomic Force Microscopy
  Yuta Okuda; Koreyoshi Imamura; Naoyuki Ishida
  Chemistry Letters, 52(12) 878 - 882, Dec. 2023, Scientific journal
  

  DOI URLScopus URLScopus Citedby URL
• Flavor retention characteristics of amorphous solid dispersion of flavors, prepared by vacuum-foam- and spray-drying under different conditions
  Yuna Nitta; Haruna Sato; Rina Yamamoto; Hiroyuki Imanaka; Naoyuki Ishida; Koreyoshi Imamura
  Drying Technology, Informa UK Limited, 42(2) 227 - 237, 27 Nov. 2023, Scientific journal
  

  URLDOI URL
• Water sorption and glass-to-rubber transition of amorphous sugar matrices, vacuum foam- and spray-dried from alcohols
  Koji Takeda; Shinta Miyazaki; Takashi Okamoto; Hiroyuki Imanaka; Naoyuki Ishida; Koreyoshi Imamura
  JOURNAL OF FOOD ENGINEERING, ELSEVIER SCI LTD, 349 111483 , Jul. 2023, Scientific journal
  

  DOI URL
• Evaluation of interaction forces between hydrophobic surfaces in surfactant solutions by atomic force microscopy
  Shota Kage; Koreyoshi Imamura; Naoyuki Ishida
  Colloid and Polymer Science, 301(7) 775 - 782, Jul. 2023, Scientific journal
  

  DOI URLScopus URLScopus Citedby URL
• Extraordinary high preservation of the dispersion state of Au nanoparticles during freeze-thawing and freeze-drying with gum arabic
  Miki Kadowaki; Tsutashi Matsuura; Hiroyuki Imanaka; Naoyuki Ishida; Koreyoshi Imamura
  Colloids and Surfaces A: Physicochemical and Engineering Aspects, 639, Apr. 2022, Scientific journal
  

  DOI URLScopus URLScopus Citedby URL
• Dense immobilization of gold nanoparticles onto a cotton textile for obtaining plasmonic heating
  Nobuko Fukuda; Naoyuki Ishida
  MRS Advances, Springer Science and Business Media LLC, 7(20) 405 - 409, 18 Mar. 2022, Scientific journal
  

  URLDOI URL
• Comparison of improvements of aqueous dissolution of structurally analogous hydrophobic drugs by amorphous solid dispersion
  Takashi Okamoto; Kayoko Yamamoto; Takanari Sekitoh; Akiho Fujioka; Hiroyuki Imanaka; Naoyuki Ishida; Koreyoshi Imamura
  Colloids and Surfaces A: Physicochemical and Engineering Aspects, Elsevier BV, 632 127744 - 127744, Jan. 2022, Scientific journal
  

  DOI URL
• Spontaneous foaming during vacuum drying of polyvinylpyrrolidone- and sugar-alcohol mixtures and enhancement of water-dissolution of water insoluble drug
  Olivier Tramis; Akiho Fujioka; Hiroyuki Imanaka; Naoyuki Ishida; Koreyoshi Imamura
  Drying Technology, Informa UK Limited, 40(3) 604 - 614, 2022, Scientific journal
  

  URLDOI URL
• Induction of foaming in vacuum drying by needle stimulation and the impact of solution viscosity, vapor pressure, and the type of solute and solvent
  Akiho Fujioka; Rina Yamamoto; Olivier Tramis; Hiroaki Ishida; Tsutomu Ono; Naoyuki Ishida; Koreyoshi Imamura
  Drying Technology, Informa UK Limited, 1 - 13, 23 Dec. 2021, Scientific journal
  

  URLDOI URL
• Foaming characteristics of sugar- and polyvinylpyrrolidone-alcohol solutions during vacuum foam drying: A rheological approach
  Olivier Tramis; Akiho Fujioka; Hiroyuki Imanaka; Naoyuki Ishida; Koreyoshi Imamura
  COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, ELSEVIER, 627, Oct. 2021, Scientific journal
  

  DOI URL
• Inhibiting Au nanoparticle aggregation in freeze-thawing by presence of various additives
  Miki Kadowaki; Hidetaka Yokota; Hiroyuki Imanaka; Naoyuki Ishida; Koreyoshi Imamura
  Advanced Powder Technology, Elsevier {BV}, 32(10) 3517 - 3524, Oct. 2021, Scientific journal
  

  DOI URL
• Direct measurements of interaction forces of bovine serum albumin and lysozyme with stainless steel by atomic force microscopy
  Hikaru Kawaguchi; Hiroyuki Imanaka; Koreyoshi Imamura; Naoyuki Ishida
  Colloids and Surfaces A: Physicochemical and Engineering Aspects, Elsevier {BV}, 627 127137 - 127137, Oct. 2021, Scientific journal
  

  DOI URL
• Crystallization characteristics of amorphous trehalose dried from alcohol
  Takanari Sekitoh; Takashi Okamoto; Akiho Fujioka; Tomohiko Yoshioka; Shinji Terui; Hiroyuki Imanaka; Naoyuki Ishida; Koreyoshi Imamura
  Journal of Food Engineering, Elsevier BV, 292 110325 - 110325, Mar. 2021, Scientific journal
  

  DOI URL
• Ultrafast charge transfer at the electrode−electrolyte interface via an artificial dielectric layer
  Takashi Teranishi; Kaisei Kozai; Sou Yasuhara; Shintaro Yasui; Naoyuki Ishida; Kunihiro Ishida; Masanobu Nakayama; Akira Kishimoto
  Journal of Power Sources, 494 229710 - 229710, 2021, Scientific journal
  

  URLDOI URLScopus URLScopus Citedby URL
• Direct measurement of interaction force between hydrophilic silica surfaces in triblock copolymer solutions with salt by atomic force microscopy
  Takumi Deguchi; Takato Nakahara; Koreyoshi Imamura; Naoyuki Ishida
  Advanced Powder Technology, Elsevier BV, 32(1) 30 - 36, Jan. 2021, Scientific journal
  

  DOI URL
• The Use of a Combination of a Sugar and Surfactant to Stabilize Au Nanoparticle Dispersion against Aggregation during Freeze-Drying
  Hidetaka Yokota; Miki Kadowaki; Tsutashi Matsuura; Hiroyuki Imanaka; Naoyuki Ishida; Koreyoshi Imamura
  Langmuir, American Chemical Society (ACS), 36(24) 6698 - 6705, 23 Jun. 2020, Scientific journal
  

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• Sole-amorphous-sugar-based solid dispersion of curcumin and the influence of formulation composition and heat treatment on the dissolution of curcumin
  Takanari Sekitoh; Takashi Okamoto; Akiho Fujioka; Olivier Tramis; Koji Takeda; Tsutashi Matsuura; Hiroyuki Imanaka; Naoyuki Ishida; Koreyoshi Imamura
  Drying Technology, Informa UK Limited, 39(14) 1 - 10, 16 Apr. 2020, Scientific journal
  

  URLDOI URL
• Immobilization of surface non-affinitive protein onto a metal surface by an external electric field
  Olivier Tramis; Ryosuke Iizuka; Hajime Nakao; Hiroyuki Imanaka; Naoyuki Ishida; Koreyoshi Imamura
  Journal of Bioscience and Bioengineering, Elsevier BV, 129(3) 348 - 353, Mar. 2020, Scientific journal
  

  DOI URL
• Controlling the drying process in vacuum foam drying under low vacuum conditions by inducing foaming by needle stimulation of the solution
  Fumihiro Hidaka; Tomo Satoh; Akiho Fujioka; Koji Takeda; Hiroyuki Imanaka; Naoyuki Ishida; Koreyoshi Imamura
  Drying Technology, 37(12) 1520 - 1527, 10 Sep. 2019, Scientific journal
  

  DOI URLScopus URLScopus Citedby URL
• Forces between zinc sulphide surfaces; amplification of the hydrophobic attraction by surface charge
  E-Jen Teh; Naoyuki Ishida; William M. Skinner; Drew Parsons; Vincent S. J. Craig
  PHYSICAL CHEMISTRY CHEMICAL PHYSICS, ROYAL SOC CHEMISTRY, 21(36) 20055 - 20064, Sep. 2019, Scientific journal
  

  DOI URL
• Physical Stability of an Amorphous Sugar Matrix Dried From Methanol as an Amorphous Solid Dispersion Carrier and the Influence of Heat Treatment
  Koji Takeda; Takanari Sekitoh; Akiho Fujioka; Kayoko Yamamoto; Takashi Okamoto; Tsutashi Matsuura; Hiroyuki Imanaka; Naoyuki Ishida; Koreyoshi Imamura
  JOURNAL OF PHARMACEUTICAL SCIENCES, ELSEVIER SCIENCE INC, 108(6) 2056 - 2062, Jun. 2019, Scientific journal
  

  DOI URL
• Direct Measurement of Interaction Forces between Surfaces in Liquids Using Atomic Force Microscopy
  Naoyuki Ishida; Vincent S. J. Craig
  KONA Powder and Particle Journal, Hosokawa Powder Technology Foundation, 36 187 - 200, 10 Jan. 2019, Scientific journal
  

  URLDOI URL
• Adsorption characteristics of various proteins on a metal surface in the presence of an external electric potential
  Ei Ei Htwe; Yuhi Nakama; Yuko Yamamoto; Hiroshi Tanaka; Hiroyuki Imanaka; Naoyuki Ishida; Koreyoshi Imamura
  Colloids and Surfaces B: Biointerfaces, Elsevier B.V., 166 262 - 268, 01 Jun. 2018, Scientific journal
  

  DOI URL
• Stratification of Colloidal Particles on a Surface: Study by a Colloidal Probe Atomic Force Microscopy Combined with a Transform Theory
  Ken Ichi Amano; Taira Ishihara; Kota Hashimoto; Naoyuki Ishida; Kazuhiro Fukami; Naoya Nishi; Tetsuo Sakka
  Journal of Physical Chemistry B, American Chemical Society ({ACS}), 122(16) 4592 - 4599, Apr. 2018, Scientific journal
  

  DOI URLScopus URLScopus Citedby URL
• Hydrophobic Attraction Measured between Asymmetric Hydrophobic Surfaces
  Naoyuki Ishida; Kohei Matsuo; Koreyoshi Imamura; Vincent S. J. Craig
  Langmuir, American Chemical Society, 34(12) 3588 - 3596, 27 Mar. 2018, Scientific journal
  

  DOI URL
• 1.9.6 summary of interparticle forces
  Naoyuki Ishida; Shuji Matsusaka
  Journal of the Society of Powder Technology, Japan, Society of Powder Technology, 55(12) 648 , 2018, Scientific journal
  

  DOI URL
• Influence of an external electric field on removal of protein fouling on a stainless steel surface by proteolytic enzymes
  Ei Ei Htwe; Yuhi Nakama; Hiroyuki Imanaka; Naoyuki Ishida; Koreyoshi Imamura
  COLLOIDS AND SURFACES B-BIOINTERFACES, ELSEVIER SCIENCE BV, 159 118 - 124, Nov. 2017, Scientific journal
  

  DOI URL
• Characteristics of proteinaceous additives in stabilizing enzymes during freeze-thawing and -drying
  Takanori Shimizu; Tamayo Korehisa; Hiroyuki Imanaka; Naoyuki Ishida; Koreyoshi Imamura
  BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY, TAYLOR & FRANCIS LTD, 81(4) 687 - 697, Apr. 2017, Scientific journal
  

  DOI URL
• Surfactant-Free Solid Dispersions of Hydrophobic Drugs in an Amorphous Sugar Matrix Dried from an Organic Solvent
  Koji Takeda; Yuto Gotoda; Daichi Hirota; Fumihiro Hidaka; Tomo Sato; Tsutashi Matsuura; Hiroyuki Imanaka; Naoyuki Ishida; Koreyoshi Imamura
  MOLECULAR PHARMACEUTICS, AMER CHEMICAL SOC, 14(3) 791 - 798, Mar. 2017, Scientific journal
  

  DOI URL
• Adsorption of lysozyme on base metal surfaces in the presence of an external electric potential
  Ei Ei Htwe; Yuhi Nakama; Hiroshi Tanaka; Hiroyuki Imanaka; Naoyuki Ishida; Koreyoshi Imamura
  COLLOIDS AND SURFACES B-BIOINTERFACES, ELSEVIER SCIENCE BV, 147 9 - 16, Nov. 2016, Scientific journal
  

  DOI URL
• Surfactant-free solid dispersion of fat-soluble flavour in an amorphous sugar matrix
  Tomo Satoh; Fumihiro Hidaka; Kento Miyake; Natsuki Yoshiyama; Koji Takeda; Tsutashi Matsuura; Hiroyuki Imanaka; Naoyuki Ishida; Koreyoshi Imamura
  FOOD CHEMISTRY, ELSEVIER SCI LTD, 197 1136 - 1142, Apr. 2016, Scientific journal
  

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• Nanostructures of 3-aminopropyltriethoxysilane created on flat substrate by combining colloid lithography and vapor deposition
  Naoyuki Ishida; Ryohei Nishihara; Hiroyuki Imanaka; Koreyoshi Imamura
  COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, ELSEVIER SCIENCE BV, 495 39 - 45, Apr. 2016, Scientific journal
  

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• The use of a proteinaceous "cushion" with a polystyrene-binding peptide tag to control the orientation and function of a target peptide adsorbed to a hydrophilic polystyrene surface
  Hiroyuki Imanaka; Daisuke Yamadzumi; Keisuke Yanagita; Naoyuki Ishida; Kazuhiro Nakanishi; Koreyoshi Imamura
  BIOTECHNOLOGY PROGRESS, WILEY-BLACKWELL, 32(2) 527 - 534, Mar. 2016, Scientific journal
  

  DOI URL
• Effect of surface hydrophobicity on short-range hydrophobic attraction between silanated silica surfaces
  Yuhei Soga; Hiroyuki Imanaka; Koreyoshi Imamura; Naoyuki Ishida
  ADVANCED POWDER TECHNOLOGY, ELSEVIER SCIENCE BV, 26(6) 1729 - 1733, Nov. 2015, Scientific journal
  

  DOI URL
• Inhibitory effects of additives and heat treatment on the crystallization of freeze-dried sugar
  Kohshi Kinugawa; Mitsunori Kinuhata; Ryo Kagotani; Hiroyuki Imanaka; Naoyuki Ishida; Mizuki Kitamatsu; Kazuhiro Nakanishi; Koreyoshi Imamura
  JOURNAL OF FOOD ENGINEERING, ELSEVIER SCI LTD, 155 37 - 44, Jun. 2015, Scientific journal
  

  DOI URL
• Influence of sugar surfactant structure on the encapsulation of oil droplets in an amorphous sugar matrix during freeze-drying
  Shota Nakayama; Yoshifumi Kimura; Sayuri Miki; Jun Oshitani; Takashi Kobayashi; Shuji Adachi; Tsutashi Matsuura; Hiroyuki Imanaka; Naoyuki Ishida; Hiroko Tada; Kazuhiro Nakanishi; Koreyoshi Imamura
  FOOD RESEARCH INTERNATIONAL, ELSEVIER SCIENCE BV, 70 143 - 149, Apr. 2015, Scientific journal
  

  DOI URL
• Effect of Lipid Amount on Surfactant-free Solid Lipid Nanoparticle Formation by Hot Homogenization
  Jun Oshitani; Natsumi Murakami; Mikio Yoshida; Naoyuki Ishida; Koreyoshi Imamura; Hideki Ichikawa
  CHEMISTRY LETTERS, CHEMICAL SOC JAPAN, 43(7) 1011 - 1013, Jul. 2014, Scientific journal
  

  DOI URL
• Characteristics of Sugar Surfactants in Stabilizing Proteins During Freeze-Thawing and Freeze-Drying
  Koreyoshi Imamura; Katsuyuki Murai; Tamayo Korehisa; Noriyuki Shimizu; Ryo Yamahira; Tsutashi Matsuura; Hiroko Tada; Hiroyuki Imanaka; Naoyuki Ishida; Kazuhiro Nakanishi
  JOURNAL OF PHARMACEUTICAL SCIENCES, WILEY-BLACKWELL, 103(6) 1628 - 1637, Jun. 2014, Scientific journal
  

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• pH Effect on Properties of Surfactant-free Oil-in-water Emulsion Prepared with Oleic Acid
  Yuta Akizuki; Mikio Yoshida; Naoyuki Ishida; Toshiyuki Oshiki; Jun Oshitani
  CHEMISTRY LETTERS, CHEMICAL SOC JAPAN, 43(5) 604 - 606, May 2014, Scientific journal
  

  DOI URL
• Effect of Modified Conditions on Adhesive Force between Propyl-modified Plates and Unmodified Silica Particle
  吉田幹生; 日高弘喜; 石田尚之; 押谷潤; 後藤邦彰
  粉体工学会誌, 51(9) 635-640 (J-STAGE) , 2014, Scientific journal
• Effect of Surface Hydrophobicity on Short-Range Hydrophobic Attraction between Silanated Silica Surfaces
  Soga Yuuhei; Imanaka Hiroyuki; Imamura Koreyoshi; Ishida Naoyuki
  Journal of the Society of Powder Technology, Japan, 一般社団法人 粉体工学会, 51(5) 343 - 348, 2014
• Improving the physical stability of freeze-dried amorphous sugar matrices by compression at several hundreds MPa
  Ryo Kagotani; Kohshi Kinugawa; Mayo Nomura; Hiroyuki Imanaka; Naoyuki Ishida; Koreyoshi Imamura
  JOURNAL OF PHARMACEUTICAL SCIENCES, WILEY-BLACKWELL, 102(7) 2187 - 2197, Jul. 2013, Scientific journal
  

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• Characteristics of amorphous matrices composed of different types of sugars in encapsulating emulsion oil droplets during freeze-drying
  Koreyoshi Imamura; Yoshifumi Kimura; Shota Nakayama; Miki Sayuri; Seiji Ogawa; Tatsuya Hoshino; Jun Oshitani; Takashi Kobayashi; Shuji Adachi; Tsutashi Matsuura; Hiroyuki Imanaka; Naoyuki Ishida; Kazuhiro Nakanishi
  FOOD RESEARCH INTERNATIONAL, ELSEVIER SCIENCE BV, 51(1) 201 - 207, Apr. 2013, Scientific journal
  

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• Role of interfacial interactions in ordering of two-dimensional colloidal self-assemblies on polyelectrolyte multilayer surfaces
  Yasuyuki Kusaka; Naoyuki Ishida; Hirobumi Ushijima
  SOFT MATTER, ROYAL SOC CHEMISTRY, 9(11) 3155 - 3163, 2013, Scientific journal
  

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• Water-in-oil Microemulsion Formation with Aqueous C-n-TAB Solution and H-AOT/Isooctane Solution
  Jun Oshitani; Yuichi Baba; Shiho Takashina; Mikio Yoshida; Naoyuki Ishida
  CHEMISTRY LETTERS, CHEMICAL SOC JAPAN, 41(10) 1072 - 1074, Oct. 2012, Scientific journal
  

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• Hydrophobic Attraction between Silanated Silica Surfaces in the Absence of Bridging Bubbles
  Naoyuki Ishida; Yasuyuki Kusaka; Hirobumi Ushijima
  LANGMUIR, AMER CHEMICAL SOC, 28(39) 13952 - 13959, Oct. 2012, Scientific journal
  

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• Effect of Electrolyte and Alcohol in Solution on the Hydrophobic Attraction between Alkoxylated Silica Surfaces
  Naoyuki Ishida; Yasuyuki Kusaka; Hirobumi Ushijima
  CHEMISTRY LETTERS, CHEMICAL SOC JAPAN, 41(10) 1273 - 1275, Oct. 2012, Scientific journal
  

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• Analysis of Adsorption and Binding Behaviors of Silver Nanoparticles onto a Pyridyl-Terminated Surface Using XPS and AFM
  Nobuko Fukuda; Naoyuki Ishida; Kenichi Nomura; Tong Wang; Kaoru Tamada; Hirobumi Ushijima
  LANGMUIR, AMER CHEMICAL SOC, 27(21) 12916 - 12922, Nov. 2011, Scientific journal
  

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• The size of particle aggregates produced by flocculation with PNIPAM, as a function of temperature
  Elizaveta Burdukova; Naoyuki Ishida; Timothy Shaddick; George V. Franks
  JOURNAL OF COLLOID AND INTERFACE SCIENCE, ACADEMIC PRESS INC ELSEVIER SCIENCE, 354(1) 82 - 88, Feb. 2011, Scientific journal
  

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• A New Method of 'Solid Inking' and Its Application to Direct Patterning of InAs Nanowire Using Dip-Pen Nanolithography
  Tong Wang; Yoshiki Shimizu; Naoyuki Ishida; Hirobumi Ushijima
  IEICE TRANSACTIONS ON ELECTRONICS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E94C(2) 146 - 150, Feb. 2011, Scientific journal
  

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• Surface characterization of nanoparticles carrying pH-responsive polymer hair
  Syuji Fujii; Motomichi Suzaki; Yoshinobu Nakamura; Kenichi Sakai; Naoyuki Ishida; Simon Biggs
  POLYMER, ELSEVIER SCI LTD, 51(26) 6240 - 6247, Dec. 2010, Scientific journal
  

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• Effect of Grafting Density on Phase Transition Behavior for Poly(N-isopropylacryamide) Brushes in Aqueous Solutions Studied by AFM and QCM-D
  Naoyuki Ishida; Simon Biggs
  MACROMOLECULES, AMER CHEMICAL SOC, 43(17) 7269 - 7276, Sep. 2010, Scientific journal
  

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• Temperature controlled surface hydrophobicity and interaction forces induced by poly (N-isopropylacrylamide)
  Elizaveta Burdukova; Haihong Li; Naoyuki Ishida; John-Paul O'Shea; George V. Franks
  JOURNAL OF COLLOID AND INTERFACE SCIENCE, ACADEMIC PRESS INC ELSEVIER SCIENCE, 342(2) 586 - 592, Feb. 2010, Scientific journal
  

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• Mechanism responsible for flocculation in poly (n-isopropylacrylamide) temperature responsive dewatering-attractive interaction forces induced by surface hydrophobicity
  Franks G; Burdukova E; Li H; Ishida N; O{'}Shea J.-P
  XXV International Mineral Processing Congress 2010, IMPC 2010, 5 4057 - 4067, 2010
  

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• Characterizing the structural transition of cationic DPPC liposomes from the approach of TEM, SAXS and AFM measurements
  Kenichi Sakai; Hideki Tomizawa; Koji Tsuchiya; Naoyuki Ishida; Hideki Sakai; Masahiko Abe
  COLLOIDS AND SURFACES B-BIOINTERFACES, ELSEVIER SCIENCE BV, 67(1) 73 - 78, Nov. 2008, Scientific journal
  

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• Salt-induced structural behavior for poly(N-isopropylacryamide) grafted onto solid surface observed directly by AFM and QCM-D
  Naoyuki Ishida; Simon Biggs
  MACROMOLECULES, AMER CHEMICAL SOC, 40(25) 9045 - 9052, Dec. 2007, Scientific journal
  

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• Interaction forces between a poly(N-isopropylacryamide) layer grafted onto a solid surface and a hydrophobic particle
  Naoyuki Ishida
  ADVANCED POWDER TECHNOLOGY, BRILL ACADEMIC PUBLISHERS, 18(6) 631 - 642, Nov. 2007, Scientific journal
  

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• Direct observation of the phase transition for a Poly(N-isopropylacryamide) layer grafted onto a solid surface by AFM and QCM-D
  Naoyuki Ishida; Simon Biggs
  LANGMUIR, AMER CHEMICAL SOC, 23(22) 11083 - 11088, Oct. 2007, Scientific journal
  

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• Direct measurement of hydrophobic particle-bubble interactions in aqueous solutions by atomic force microscopy: Effect of particle hydrophobicity
  Naoyuki Ishida
  COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, ELSEVIER SCIENCE BV, 300(3) 293 - 299, Jun. 2007, Scientific journal
  

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• Interaction forces measured between poly(N-isopropylacrylamide) grafted surface and hydrophobic particle
  N Ishida; M Kobayashi
  JOURNAL OF COLLOID AND INTERFACE SCIENCE, ACADEMIC PRESS INC ELSEVIER SCIENCE, 297(2) 513 - 519, May 2006, Scientific journal
  

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• Interaction forces between chemically modified hydrophobic surfaces evaluated by AFM - The role of nanoscopic bubbles in the interactions
  N Ishida; K Higashitani
  MINERALS ENGINEERING, PERGAMON-ELSEVIER SCIENCE LTD, 19(6-8) 719 - 725, May 2006, Scientific journal
  

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• Interaction forces between thermoresponsive surface and colloidal particle in aqueous solution studied using atomic force microscopy
  Ishida N; Kobayashi M
  Materials Research Society Symposium Proceedings, 942 21 - 27, 2006, International conference proceedings
  

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• Capillary forces between planar anchoring surfaces in the isotropic phase of a nematic liquid crystal
  Hiroyuki Shinto; Kiwamu Kobayashi; Terumasa Hyodo; Naoyuki Ishida; Ko Higashitani
  Chemistry Letters, 34(10) 1318 - 1319, 05 Oct. 2005, Scientific journal
  

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• Interaction forces between hydrophobic surfaces evaluated by AFM - The role of nanoscopic bubbles in the interactions
  Ishida N; Higashitani K
  Australasian Institute of Mining and Metallurgy Publication Series, 481 - 486, 2005
  

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• Direct Measurements of The Interaction Force between Particle and Bubble in Aqueous Surfactant Solutions
  ISHIDA Naoyuki; YOTSUMOTO Hiroki
  Shigen-to-Sozai, 一般社団法人 資源・素材学会, 120(6) 400 - 405, 25 Jul. 2004
  

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• Direct Measurement of Interaction Forces between Solid Particle and Bubble in Aqueous Solutions by Atomic Force Microscopy
  ISHIDA Naoyuki; YOTSUMOTO Hiroki
  Shigen-to-Sozai, 一般社団法人 資源・素材学会, 120(6) 395 - 399, 25 Jul. 2004
  

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• Optical observation of gas bridging between hydrophobic surfaces in water
  N Ishida; M Sakamoto; M Miyahara; K Higashitani
  JOURNAL OF COLLOID AND INTERFACE SCIENCE, ACADEMIC PRESS INC ELSEVIER SCIENCE, 253(1) 112 - 116, Sep. 2002, Scientific journal
  

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• Static method to evaluate interaction forces by AFM
  N Ishida; M Sakamoto; M Miyahara; K Higashitani
  JOURNAL OF COLLOID AND INTERFACE SCIENCE, ACADEMIC PRESS INC, 235(1) 190 - 193, Mar. 2001, Scientific journal
  

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• Nano bubbles on a hydrophobic surface in water observed by tapping-mode atomic force microscopy
  N Ishida; T Inoue; M Miyahara; K Higashitani
  LANGMUIR, AMER CHEMICAL SOC, 16(16) 6377 - 6380, Aug. 2000
  

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• Attraction between hydrophobic surfaces with and without gas phase
  N Ishida; M Sakamoto; M Miyahara; K Higashitani
  LANGMUIR, AMER CHEMICAL SOC, 16(13) 5681 - 5687, Jun. 2000, Scientific journal
  

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• Effects of hydrophobizing methods of surfaces on the interaction in aqueous solutions
  N Ishida; N Kinoshita; M Miyahara; K Higashitani
  JOURNAL OF COLLOID AND INTERFACE SCIENCE, ACADEMIC PRESS INC, 216(2) 387 - 393, Aug. 1999, Scientific journal
  

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• Adsorption of Inorganic Depressants on Synthesized Diamond and Graphite
  ISHIDA Naoyuki; MWAIPOPO Danford; KUSAKA Eishi; NIINAE Masakazu; FUKUNAKA Yasuhiro; NAKAHIRO Yoshitaka
  Journal of the Mining and Materials Processing Institute of Japan, 資源・素材学会, 113(4) p.269 - 273, Apr. 1997
• Study on Recycling of Rare Earth Magnet Scrap.
  NIINAE Masakazu; YAMAGUCHI Kiyoto; ISHIDA Naoyuki; DJOHARI Akskadi; NAKAHIRO Yoshitaka; WAKAMATSU Takahide
  Shigen-to-Sozai, 一般社団法人 資源・素材学会, 110(12) 981 - 986, 1994

MISC

• Fundamentals of Powder Technology, 2nd Edition(1)Particle Characteristics and Measurement(9)Interparticle Forces(4)Measurement Methods of Interparticle Forces
  石田 尚之
  粉体工学会誌 = Journal of the Society of Powder Technology, Japan, 粉体工学会, 55(10) 542 - 546, 2018
• 1. Particle characteristics and measurement 1.9 interparticle forces 1.9.3 effects of surface deformation, geometry and roughness on forces
  Naoyuki Ishida; Shuji Matsusaka
  Journal of the Society of Powder Technology, Japan, Society of Powder Technology, 55(4) 208 - 211, 2018
• 1. Particle characteristics and measurement 1.9 interparticle forces 1.9.2 interactions in liquids
  Naoyuki Ishida; Shuji Matsusaka
  Journal of the Society of Powder Technology, Japan, Society of Powder Technology, 55(2) 104 - 112, 2018
• Rapid Synthesis Method of Pigments for Scientific Educational Activities
  米田 美佳; 石田 尚之; 寺西 貴志; 中西 真
  Ceramics Japan, 日本セラミックス協会, 52(11) 759 - 763, Nov. 2017
• 1. Particle characteristics and measurement 1.9 interparticle forces
  Naoyuki Ishida; Shuji Matsusaka
  Journal of the Society of Powder Technology, Japan, Society of Powder Technology, 54(11) 738 , 2017, Report scientific journal
  

  DOI URL
• Direct Measurement of Surface Forces::Effect of Nanoscopic Structure and Property of Surface on the Forces
  ISHIDA Naoyuki
  Journal of the Japan Society of Colour Material, Japan Society of Colour Material, 90(9) 333 - 338, 2017, Introduction scientific journal
  

  DOI URL
• Fundamentals of Powder Technology, 2nd Edition(1)Particle Characteristics and Measurement(9)Interparticle Forces(1)Interactions in Gases
  松坂 修二; 石田 尚之; 松山 達
  Journal of the Society of Powder Technology, Japan, 粉体工学会, 54(11) 739 - 743, 2017
• 1.9.1 Interactions in Gases
  Shuji Matsusaka; Naoyuki Ishida; Tatsushi Matsuyama
  Journal of the Society of Powder Technology, Japan, The Society of Powder Technology, Japan, 54(11) 739 - 743, 2017
  

  Scopus URLScopus Citedby URL
• Fundamentals of Powder Technology, 2nd Edition(1)Particle Characteristics and Measurement(9)Interparticle Forces(1)Interactions in Gases
  Ishida Naoyuki; Matsusaka Shuji
  Journal of the Society of Powder Technology, Japan, The Society of Powder Technology, Japan, 54(11) 739 - 743, 2017
• Sugar surfactantの応用 : 油滴包括およびタンパク質安定化
  今村 維克; 石田 尚之; 今中 洋行
  日本食品工学会誌 = Japan journal of food engineering, 日本食品工学会, 17(3) A - 7-11, Sep. 2016
• Direct Measurement of Hydrophobic Attraction and Its Mechanism of Generation
  石田 尚之
  オレオサイエンス, 日本油化学会, 15(6) 253 - 259, Jun. 2015
• 2P-064 Screening of a novel Pd affinity peptide tag and characterization of tag conjugated protein immobilization
  Matoba Haruka; Ishida Naoyuki; Imamura Koreyoshi; Imanaka Hiroyuki
  日本生物工学会大会講演要旨集, 日本生物工学会, 67 190 - 190, 2015
• Direct Measurement of Hydrophobic Attraction and Its Mechanism of Generation
  ISHIDA Naoyuki
  Oleoscience, Japan Oil Chemists' Society, 15(6) 253 - 259, 2015
  

  DOI URL
• Direct Measurement of Solvophobic Force between Particles in Liquids and Its Origin
  ISHIDA Naoyuki
  Hosokawa Powder Technology Foundation ANNUAL REPORT, Hosokawa Powder Technology Foundation, 23(0) 38 - 43, 2015
• Experimental Evaluations for the Interaction Forces between Soft Interfaces
  ISHIDA Naoyuki
  Journal of the Society of Powder Technology, Japan, The Society of Powder Technology, Japan, 50(8) 567 - 575, 10 Aug. 2013
  

  DOI URL
• 岡山大学大学院自然科学研究科化学生命工学専攻生命工学講座バイオプロセス工学分野
  今村 維克; 石田 尚之; 今中 洋行
  化学工学 = Chemical engineering, 77(5) 371 - 372, 05 May 2013
• The 10th International Symposium on Electrokinetic Phenomena : ELKIN2012
  ISHIDA Naoyuki
  粉体工学会誌, 50(1) 57 - 58, 10 Jan. 2013
• Direct Measurement of Hydrophobic Attraction and Elucidation of its Mechanism
  ISHIDA Naoyuki
  Journal of The Adhesion Society of Japan, The Adhesion Society of Japan, 49(8) 305 - 310, 2013
  

  DOI URL
• Microstructural Observation and Property Characterization of Stimuli-Responsive Polymer Grafted onto Solid Surface Using AFM and QCM-D
  ISHIDA Naoyuki
  Oleoscience, Japan Oil Chemists' Society, 12(4) 151 - 158, 2012
  

  DOI URL
• The Fifth Biennial Australian Colloid and Interface Symposium
  ISHIDA Naoyuki
  Journal of the Society of Powder Technology,Japan, 粉体工学会, 48(7) 495 - 497, 10 Jul. 2011
• 表面に固定した感温性高分子のナノ構造直接観察と物性評価
  石田 尚之
  C & I commun : colloid & interface communication : newsletter from DCSC, 日本化学会コロイドおよび界面化学部会, 36(1) 30 - 32, 2011
• Experimental Investigation of the Interaction Forces between Soft Interfaces
  ISHIDA Naoyuki
  Oleoscience, Japan Oil Chemists' Society, 11(3) 79 - 84, 2011
  

  DOI URL
• 81st ACS Colloid & Surface Science Symposium
  ISHIDA Naoyuki
  粉体工学会誌 = Journal of the Society of Powder Technology, Japan, 45(2) 118 - 119, 10 Feb. 2008
• The Life and Times in the United Kingdom
  ISHIDA Naoyuki
  Journal of the Society of Powder Technology,Japan, 粉体工学会, 44(10) 760 - 763, 10 Oct. 2007
  

  DOI URL
• The Life and Times in the United Kingdom
  Ishida Naoyuki
  Journal of the Society of Powder Technology, Japan, The Society of Powder Technology, Japan, 44(10) 760 - 763, 2007
  

  DOI URL
• Direct Measurement of Surface Forces in Liquids : Measurement of Hydrophobic Attraction
  ISHIDA Naoyuki
  Journal of the Society of Powder Technology,Japan, 粉体工学会, 42(5) 342 - 346, 10 May 2005
• Direct Measurement of Surface Forces in Liquids-Measurement of Hydrophobic Attraction-:Measurement of Hydrophobic Attraction
  Ishida Naoyuki
  Journal of the Society of Powder Technology, Japan, The Society of Powder Technology, Japan, 42(5) 342 - 346, 2005
  

  DOI URL
• ナノ粒子の分散・凝集評価のための表面間力測定技術 (特集 粉体工業分野におけるナノテク関連評価技術)
  石田 尚之
  粉体と工業, 粉体と工業社, 36(6) 65 - 73, Jun. 2004
• 感温性表面によるエマルションの油水分離に関する基礎的研究
  石田 尚之; 四元 弘毅
  春季大会講演集. I, 資源編, 16(2) 45 - 46, 29 Mar. 2004
• 原子間力顕微鏡による水溶液中の微粒子・気泡間相互作用力の直接測定
  石田 尚之; 四元 弘毅
  春季大会講演集. I, 資源編, 14(2) 72 - 73, 28 Mar. 2002
• 水溶液中における疎水性表面間力の発現機構
  石田 尚之
  粉体工学会誌, 37(11) 826 - 827, 10 Nov. 2000
• 第34回夏期シンポジウム総合討論 : 粒子表面のキャラクタリゼーション
  石田 尚之
  粉体工学会誌, 粉体工学会, 36(3) 214 - 222, 10 Mar. 1999

Books etc

• Non-Destructive Material Characterization Methods
  Naoyuki Ishida
  Elsevier, 2023, Contributor, Chapter 4 Atomic force microscopy
• Powder technology handbook, Fourth Edition
  Kuniaki Goto; Naoyuki Ishida; Shuji Matsusaka
  CRC Press, 2020, Joint work, 2.7 Adhesive Force of Single Particle
• Powder technology handbook, Fourth Edition
  Naoyuki Ishida; Vincent S. J. Craig
  CRC Press, 2020, Joint work, 1.7 Characterization by Atomic Force Microscope

Presentations

• シリカ粒子間の水和力に与える表面状態とイオン種の影響：原子間力顕微鏡による評価
  石田 尚之; 秋田 翔貴; 小寺 正修; 今村 維克
  第59回 粉体に関する討論会, 22 Dec. 2022, 21 Dec. 2022, 23 Dec. 2022, Oral presentation
• 分散・凝集を司る表面間力：直接測定から見えるもの
  石田 尚之
  2022年度関西接着ワークショップ 第3回研究会, 23 Dec. 2022, Invited oral presentation
• 液中の粉の性質
  石田 尚之
  国際粉体工業展東京2022 粉体工学入門セミナー, 08 Dec. 2022, 07 Dec. 2022, 09 Dec. 2022, Public discourse
• 濃厚分散系をつかさどる液相中の固体表面相互作用
  石田 尚之
  第12回 CSJ化学フェスタ2022 テーマ企画「材料化学の最先端を歩み続ける濃厚分散系」, 19 Oct. 2022, 19 Oct. 2022, 19 Oct. 2022, Keynote oral presentation
• Exploring the characteristics of “short-range” hydrophobic attraction between silanated silica surfaces and its origin
  Naoyuki Ishida; Masato Itakura; Kohei Matsuo; Koreyoshi Imamura
  51st General Assembly of the German Colloid Society, 28 Sep. 2022, 28 Sep. 2022, 30 Sep. 2022, Oral presentation
• 原子間力顕微鏡によるシリカ表面間の水和斥力の評価：表面状態とイオン種の影響
  石田 尚之; 秋田 翔貴; 小寺 正修; 今村 維克
  第73回コロイドおよび界面化学討論会, 20 Sep. 2022, 20 Sep. 2022, 22 Sep. 2022, Oral presentation
• アルコール−水混合溶媒中における温度応答性ポリマーグラフト表面の物性・構造変化
  石田尚之; 武澤歩; 今村維克
  第73回コロイドおよび界面化学討論会, 21 Sep. 2022, 20 Sep. 2022, Oral presentation
• Affinity between Surface and Solvent Molecules Dominates the Interaction Forces between Surfaces in Organic Solvents
  Naoyuki Ishida; Akifumi Ohnishi; Shogo Udaka; Koreyoshi Imamura
  36th European Colloid & Interface Society Conference, 05 Sep. 2022, 04 Sep. 2022, 09 Sep. 2022, Oral presentation
• 微粒子の分散と表面間力に与える表面有機分子の影響:AFMによる直接測定
  石田 尚之; 宇高 渉吾; 今村 維克
  粉体工学会第56回技術討論会, 02 Sep. 2022, 01 Sep. 2022, 02 Sep. 2022, Oral presentation
• 液中微粒子の分散･凝集現象と表面間力：新たな体系の構築に向けて
  石田尚之
  第92回マテリアルズテーラリング研究会, 04 Aug. 2022, 04 Aug. 2022, 06 Aug. 2022, Invited oral presentation
• Exploring the characteristics of “short-range” hydrophobic attraction between silanated silica surfaces
  Naoyuki Ishida; Masato Itakura; Kohei Matsuo; Koreyoshi Imamura
  17th Conference of the International Association of Colloid and Interface Scientists, 27 Jun. 2022, 26 Jun. 2022, 30 Jun. 2022, Oral presentation
• パルスNMR法による粒子表面-溶媒分子間相互作用の評価と有機溶媒中の微粒子分散
  石田尚之
  粉体工学会2022年度春期研究発表会, 17 May 2022, 17 May 2022, 18 May 2022, Oral presentation
• 表面の親疎水性と表面間力：直接測定から見えるもの
  石田尚之
  21-1高分子と水･分離に関する研究会および2021年度界面動電現象研究会, 04 Mar. 2022
• An AFM study on the interaction forces between silanated silica surfaces in organic solvents: Effect of the interactions on stability of particle dispersions
  Naoyuki Ishida; Ai Sakamoto; Akifumi Ohnishi; Koreyoshi Imamura
  APT2021: 8th Asian Particle Technology Symposium, 11 Oct. 2021, Oral presentation
• Conformational Transitions of Poly (N-isopropylacrylamide) layers on silica in alcohols and binary solvents
  Naoyuki Ishida; Koreyoshi Imamura
  第72回コロイドおよび界面化学討論会（国際シンポジウム）, 21 Sep. 2021, Oral presentation
• 溶媒緩和NMRによる有機溶媒中での固体表面－溶媒分子間の親和性の評価と表面間力への影響の解析
  大西晃史; 坂本愛衣; 今村維克; 石田尚之
  第72回コロイドおよび界面化学討論会, 15 Sep. 2021, Oral presentation
• Characterisation of the properties and structure of Poly(N-isopropylacrylamide) layers on silica in alcohols and binary solvents
  Naoyuki Ishida
  ACIS2021: The 10th Australian Colloid and Interface Symposium, 10 Feb. 2021, Oral presentation
• 疎水性基板上での水ー有機溶媒混合液滴の蒸発挙動の観察
  玉木孝征, 今中洋行, 今村維克, 石田尚之
  化学工学会中国四国支部 2020広島大会, 11 Dec. 2020, 11 Dec. 2020, Oral presentation, 化学工学会中国四国支部
• タンパク質–固体表面間に働く相互作用のAFM直接測定
  松木涼馬, 今中洋行, 今村維克, 石田尚之
  化学工学会中国四国支部 2020広島大会, 11 Dec. 2020, 11 Dec. 2020, Oral presentation, 化学工学会中国四国支部
• 高分子水溶液中におけるアルミナ表面間相互作用のAFM直接測定
  岸本直人, 今中洋行, 今村維克, 石田尚之
  化学工学会中国四国支部 2020広島大会, 11 Dec. 2020, 11 Dec. 2020, Oral presentation, 化学工学会中国四国支部
• 水溶液中のシリカ表面間に働く水和斥力に与えるイオン種の影響： AFM直接測定による検討
  野崎真由, 今中洋行, 今村維克, 石田尚之
  日本油化学会第59回年会, 02 Nov. 2020, 07 Nov. 2020, Oral presentation
• トリブロックコポリマー水溶液中におけるシリカ表面間相互作用の AFM直接測定：ポリマー濃度と共存塩の影響
  出口拓海, 中原毅人, 今中洋行, 今村維克, 石田尚之
  日本油化学会第59回年会, 02 Nov. 2020, 07 Nov. 2020, Oral presentation
• Evaluation of Non-DLVO Forces between Surfaces in Liquids by Atomic Force Microscopy
  Naoyuki Ishida
  Australia-Japan Colloids Symposium 2020, 17 Sep. 2020, 18 Sep. 2020, Keynote oral presentation
• 有機溶媒および混合溶媒中における温度応答性ポリマーグラフト表面の物性・構造の評価
  小笠原史織, 今中洋行, 今村維克, 石田尚之
  第71回コロイドおよび界面化学討論会, 14 Sep. 2020, 16 Sep. 2020, Invited oral presentation, 日本化学会 コロイドおよび界面化学部会, オンライン
• 分散凝集に寄与する表面間力の直接測定 ?疎水性引力と溶媒和力を中心に?
  石田尚之
  第71回コロイドおよび界面化学討論会, 14 Sep. 2020, 16 Sep. 2020, Invited oral presentation, 日本化学会 コロイドおよび界面化学部会, オンライン
• Exploring the characteristics of “short-range” hydrophobic attraction: non-aqueous solvents, dissimilar surfaces, and effect of surfactants
  Naoyuki Ishida, Yuhei Soga, Kohei Matsuo, Shota Kage, Koreyoshi Imamura
  Okinawa Colloids 2019, 04 Nov. 2019, 08 Nov. 2019, Oral presentation
• 分散剤水溶液中におけるアルミナ表面間相互作用のAFM直接測定
  岸本直人,今中洋行,今村維克,石田尚之
  粉体工学会2019年度秋期研究発表会, 15 Oct. 2019, 16 Oct. 2019, Poster presentation
• タンパク質と疎水性固体表面間に働く相互作用の AFM 直接測定
  松木涼馬,今中洋行,今村維克,石田尚之
  日本油化学会第５8回年会, 24 Sep. 2019, 26 Sep. 2019, Poster presentation
• 微小表面を用いた疎水性引力の AFM 直接測定:引力に与える表面サイズの影響
  板倉聖人, 今中洋行,今村維克,石田尚之
  日本油化学会第５8回年会, 24 Sep. 2019, 26 Sep. 2019, Oral presentation
• 有機溶媒中での固体表面間相互作用の AFM 直接測定 : 溶媒分子-表面間の親和性の影響
  坂本愛衣, 今中洋行,今村維克,石田尚之
  日本油化学会第５8回年会, 24 Sep. 2019, 26 Sep. 2019, Oral presentation
• 柔らかい疎水性表面間における相互作用力のAFM直接測定
  石田尚之, 奥田悠太, 今中洋行,今村維克
  日本油化学会第５8回年会, 24 Sep. 2019, 26 Sep. 2019, Oral presentation
• AFM measurement of interaction force between silanated silica surfaces in organic solvents
  Naoyuki Ishida, Ai Sakamoto, Koreyoshi Imamura
  The 33rd Conference of the European Colloid and Interface Society (ECIS), 08 Sep. 2019, 13 Sep. 2019, Poster presentation, European Colloid and Interface Society, Leuven, Belgium
• Direct measurement of the interaction forces between silanated silica surfaces in organic solvents: Effect of affinity between surface and solvent molecules on the interaction
  Naoyuki Ishida, Ai Sakamoto, Hiroyuki Imanaka, Koreyoshi Imamura
  The 9th biennial Australian Colloid and Interface Symposium, 03 Feb. 2019, 07 Feb. 2019, Oral presentation, Australian Colloid and Interface Society, Hobart, Australia
• 疎水性引力に与える混合溶媒および表面サイズの影響
  板倉聖人,岩崎由希,今中洋行,今村維克,石田尚之
  第69回コロイドおよび界面化学討論会, 18 Sep. 2018, 20 Sep. 2018, Poster presentation, 筑波大学
• 有機溶媒中での固体間相互作用の直接測定：相互作用への 表面?溶媒分子の親和性の影響
  坂本愛衣,今中洋行,今村維克,石田尚之
  第69回コロイドおよび界面化学討論会, 18 Sep. 2018, 20 Sep. 2018, Poster presentation, 筑波大学
• 水溶液中の疎水性表面間の相互作用に与える 各種分散剤の影響
  鹿毛 翔太,今中 洋行,今村 維克,石田 尚之
  日本油化学会第５７回年会, 04 Sep. 2018, 06 Sep. 2018, Oral presentation
• トリブロックコポリマー水溶液中でのシリカ表面間相互作用のAFM 直接測定：温度と塩の影響
  石田尚之, 出口拓海,今中洋行,今村維克,Timothy Murdoch, Grant Webber, Erica Wanless
  日本油化学会第５７回年会, 04 Sep. 2018, 06 Sep. 2018, Oral presentation
• 原子間力顕微鏡による気液および固液界面間相互作用力の直接測定
  石田尚之
  環境資源工学会 第137回学術講演会, 28 Jun. 2018, 28 Jun. 2018, Invited oral presentation
• 有機溶媒中における粒子表面間の溶媒和力と微粒子分散
  石田尚之
  粉体工学会2018年度春期研究発表会, 15 May 2018, 16 May 2018, Oral presentation
• Hydriphobic Attraction between Silanated Silica Surfaces of Different Hydrophobicity
  Naoyuki Ishida, Kohei Matsuo, Hiroyuki Imanaka, Koreyoshi Imamura
  World Congress on Particle Technology, 22 Apr. 2018, 26 Apr. 2018, Oral presentation
• 分散における粒子間相互作用：非DLVO 力の直接測定による評価
  石田尚之
  分散凝集の学理構築への戦略, 27 Mar. 2018, 27 Mar. 2018, Oral presentation, 日本化学会新領域研究グループ「分散凝集の学理構築への戦略」
• Direct Measurement of Interaction Forces between Liquid-Gas and Solid-Liquid Interfaces by Atomic Force Microscopy
  石田 尚之
  Resources processing, 2018, 2018, 2018, 環境資源工学会
• 水溶液中の疎水性表面間に働く相互作用に与える分散剤の影響
  鹿毛 翔太, 今中 洋行, 今村 維克, 石田 尚之
  第68回コロイドおよび界面化学討論会, 06 Sep. 2017, 08 Sep. 2017, Poster presentation, 日本化学会コロイドおよび界面化学部会, 神戸大学
• 有機溶媒-水混合溶液中におけるシリカ表面間力のAFM直接測定
  松山 勇太, 今中 洋行, 今村 維克, 石田 尚之
  第68回コロイドおよび界面化学討論会, 06 Sep. 2017, 08 Sep. 2017, Poster presentation, 日本化学会コロイドおよび界面化学部会, 神戸大学
• Interaction Forces between Silanated Silica Surfaces of Different Hydrophobicity
  Naoyuki Ishida, Kohei Matsuo, Hiroyuki Imanaka, Koreyoshi Imamura
  The 8th biennial Australian Colloid and Interface Symposium, 29 Jan. 2017, 02 Feb. 2017, Oral presentation, Australian Colloid and Interface Society, Coffs Harbor, Australia
• Exploring the origin of hydrophobic attraction: What is understood and what is not?
  Naoyuki Ishida
  4th International Kyushu Colloid Colloquium, 27 Sep. 2016, 28 Sep. 2016, Invited oral presentation, 日本化学会コロイドおよび界面化学部会九州支部, 西新プラザ
• トリブロックコポリマー水溶液中でのシリカ表面間相互作用のAFM直接測定
  出口 拓海, 今中 洋行, 今村 維克, 石田 尚之
  第67回コロイドおよび界面化学討論会, 22 Sep. 2016, 24 Sep. 2016, Poster presentation, 日本化学会コロイドおよび界面化学部会, 北海道教育大学旭川校
• 柔らかい疎水性表面における相互作用力のAFMによる直接測定
  奥田 悠太, 今中 洋行, 今村 維克, 石田 尚之
  第67回コロイドおよび界面化学討論会, 22 Sep. 2016, 24 Sep. 2016, Poster presentation, 日本化学会コロイドおよび界面化学部会, 北海道教育大学旭川校
• タンパク質と金属表面間相互作用の原子間力顕微鏡による直接測定
  石田 尚之, 川口 陽, 今中 洋行, 今村 維克
  粉体工学会第52回夏期シンポジウム, 08 Aug. 2016, 09 Aug. 2016, Oral presentation, 粉体工学会, 神戸
• 原子間力顕微鏡による液相中での固体間相互作用の直接測定と疎水性引力
  石田尚之
  日本接着学会第３回関西支部 岡山講演会, 14 Mar. 2016, 14 Mar. 2016, Invited oral presentation, 日本接着学会関西支部
• Interaction Forces between Hydrophobic Surfaces in Water-Organic Solvent Binary Mixtures
  Naoyuki Ishida, Kengo Terada, Hiroyuki Imanaka, Koreyoshi Imamura
  The 6th Asian Conference on Colloid and Interface Science (ACCIS2015 Japan), 24 Nov. 2015, 27 Nov. 2015, Oral presentation, The Australasian Colloids and Interface Society, Sasebo, Japan
• Thermoresponsive Behavior of Catecholamine Sensitive Copolymer of N-Isopropylacrylamide and Phenylboronic Acid
  Ryotaro Kohara, Hiroyuki Imanaka, Koreyoshi Imamura, Naoyuki Ishida
  The 6th Asian Conference on Colloid and Interface Science (ACCIS2015 Japan), 24 Nov. 2015, 27 Nov. 2015, Poster presentation, Asian Society for Colloid and Surface Science, Sasebo, Japan
• Interaction Force between Hydrophobized Silica Surfaces in Water-Organic Solvent Mixtures
  Naoyuki Ishida, Kengo Terada, Hiroyuki Imanaka, Koreyoshi Imamura
  The Western Pacific Colloids Meeting 2015 (WPC 2015), 15 Nov. 2015, 19 Nov. 2015, Oral presentation, The Australasian Colloids and Interface Society, Siem Reap, Cambodia
• 異なる疎水度をもつ粒子?基板間相互作用力のAFM測定
  松尾 康平,今中 洋行,今村 維克,石田 尚之
  粉体工学会2015年度秋期研究発表会, 13 Oct. 2015, 14 Oct. 2015, Poster presentation, 粉体工学会, 大阪
• 水-水溶性有機溶媒中での疎水性表面間相互作用の直接測定
  寺田 健悟,今中 洋行,今村 維克,石田 尚之
  粉体工学会2015年度秋期研究発表会, 13 Oct. 2015, 14 Oct. 2015, Poster presentation, 粉体工学会, 大阪
• 水中の疎水化シリカ表面間に働く短距離性疎水性引力に及ぼす表面の疎水性の影響
  曽我 友平,今中 洋行,今村 維克,石田 尚之
  粉体工学会2015年度秋期研究発表会, 13 Oct. 2015, 14 Oct. 2015, Invited oral presentation, 粉体工学会, 大阪
• Direct Measurements of Interaction Forces between Proteins and Metal Surfaces by Atomic Force Microscopy
  Naoyuki Ishida, Hikaru Kawaguchi, Hiroyuki Imanaka, Koreyoshi Imamura
  The 16th Asian Pacific Confederation of Chemical Congress (APCChe2015), 27 Sep. 2015, 01 Oct. 2015, Oral presentation, The Royal Australian Chemical Institute, Melbourne, Australia
• 原子間力顕微鏡によるタンパク質と金属表面間相互作用 のin situ評価
  川口 陽, 今中 洋行, 今村 維克, 石田 尚之
  第66回コロイドおよび界面化学討論会, 10 Sep. 2015, 12 Sep. 2015, Poster presentation, 日本化学会コロイドおよび界面化学部会, 鹿児島大学
• 水−水溶性有機溶媒混合溶液中における疎水性表面間の相互作用
  寺田 健悟, 今中 洋行, 今村 維克, 石田 尚之
  第66回コロイドおよび界面化学討論会, 10 Sep. 2015, 12 Sep. 2015, Poster presentation, 日本化学会コロイドおよび界面化学部会, 鹿児島大学
• 異なる疎水度をもつ疎水性表面間に働く相互作用力の AFM 直接測定
  松尾 康平, 今中 洋行, 今村 維克, 石田 尚之
  第66回コロイドおよび界面化学討論会, 10 Sep. 2015, 12 Sep. 2015, Poster presentation, 日本化学会コロイドおよび界面化学部会, 鹿児島大学
• 微小表面間に働く疎水性引力の直接測定
  石田 尚之, 池田 享平, 曽我 友平, 今中 洋行, 今村 維克
  第66回コロイドおよび界面化学討論会, 10 Sep. 2015, 12 Sep. 2015, Oral presentation, 日本化学会コロイドおよび界面化学部会, 鹿児島大学
• AFMによる改質シリカ表面間の「疎液性引力」の直接測定
  石田 尚之, 曽我 友平, 今中 洋行, 今村 維克
  第9回中四国若手CE合宿, 04 Sep. 2015, 05 Sep. 2015, Poster presentation, 化学工学会中国四国支部, 広島
• Nanostructural analysis of poly(N-isopropylacryamide) and its copolymers grafted onto solid surface
  Naoyuki Ishida
  International Conference of Colloids and Interface Science, 2015, 22 Jul. 2015, 24 Jul. 2015, Oral presentation, The Taiwanese Colloid and Interface Society, Taipei, Taiwan
• Interaction Forces between Silanated Silica Surfaces in Water-Organic Solvent Mixtures
  Naoyuki Ishida, Kengo Terada, Yuhei Soga, Hiroyuki Imanaka, Koreyoshi Imamura
  15th Conference of the International Association of Colloid and Interface Scientists, 24 May 2015, 29 May 2015, Oral presentation, The international Association of Colloid and Interface Scientists, Mainz, Germany
• Interaction force between silanated silica surfaces in organic solvents
  Naoyuki Ishida, Yuhei Soga, Hiroyuki Imanaka, Koreyoshi Imamura
  The seventh biennial Australian Colloid and Interface Symposium, 01 Feb. 2015, 05 Feb. 2015, Oral presentation, The Australasian Colloid and Interface Society, Hobart
• 疎水性引力の直接測定とその発現機構
  石田尚之
  平成26年度 物理化学インターカレッジセミナー 兼日本油化学会界面科学部会九州地区講演会, 07 Jan. 2015, 08 Jan. 2015, Invited oral presentation, 福岡大学セミナーハウス
• 微粒子表面の疎水性と表面間の相互作用力との相関の検討
  石田 尚之, 曽我 友平, 池田 亨平, 今中 洋行, 今村 維克
  第52回粉体に関する討論会, 25 Sep. 2014, 27 Sep. 2014, Oral presentation, 粉体工学会ほか, じばさんびる（姫路市）
• AFMを用いた液相中での固体間相互作用の直接測定
  石田尚之
  平成26年度 先端膜工学研究推進機構秋季講演会, 19 Sep. 2014, 19 Sep. 2014, Invited oral presentation, 一般社団法人先端膜工学研究推進機構, 神戸大学
• 感温性高分子の相転移に与えるカテコールアミン認識コポリマーの影響
  小原 涼太郎, 今中 洋行, 今村 維克, 石田 尚之
  化学工学会 第46回秋季大会, 17 Sep. 2014, 19 Sep. 2014, Oral presentation, 化学工学会, 九州大学 伊都キャンパス
• 微粒子テンプレート法による基板上への分子パターニングと規則孔構造の形成
  西原 亮平, 今中 洋行, 今村 維克, 石田 尚之
  化学工学会 第46回秋季大会, 17 Sep. 2014, 19 Sep. 2014, Oral presentation, 化学工学会, 九州大学 伊都キャンパス
• コロイドプローブAFMによる改質シリカ表面間の疎液性引力の直接測定
  石田 尚之, 曽我 友平, 池田 亨平, 今中 洋行, 今村 維克
  化学工学会 第46回秋季大会, 17 Sep. 2014, 19 Sep. 2014, Oral presentation, 化学工学会, 九州大学 伊都キャンパス
• 温度応答性コポリマーグラフト表面の構造制御とタンパク質の吸着
  細田 直希, 今中 洋行, 今村 維克, 石田 尚之
  第65回コロイドおよび界面化学討論会, 03 Sep. 2014, 05 Sep. 2014, Poster presentation, 日本化学会コロイドおよび界面化学部会, 東京理科大学 神楽坂キャンパス
• AFM探針と基板表面間に働く疎水性引力の直接測定
  池田 亨平, 曽我 友平, 今中 洋行, 今村 維克, 石田 尚之
  第65回コロイドおよび界面化学討論会, 03 Sep. 2014, 05 Sep. 2014, Poster presentation, 日本化学会コロイドおよび界面化学部会, 東京理科大学 神楽坂キャンパス
• ナノバブルを除去した疎水性表面間の相互作用力
  曽我 友平, 今中 洋行, 今村 維克, 石田 尚之
  第65回コロイドおよび界面化学討論会, 03 Sep. 2014, 05 Sep. 2014, Poster presentation, 日本化学会コロイドおよび界面化学部会, 東京理科大学 神楽坂キャンパス
• 表面の疎液性と表面間の引力との相関について
  石田尚之, 曽我 友平, 今中 洋行, 今村 維克
  第65回コロイドおよび界面化学討論会, 03 Sep. 2014, 05 Sep. 2014, Oral presentation, 日本化学会コロイドおよび界面化学部会, 東京理科大学 神楽坂キャンパス
• 表面に固定したpoly(N-isopropylacrylamide)の構造変化に及ぼす電解質の影響
  石田尚之, サイモン・ビックス
  第65回コロイドおよび界面化学討論会, 03 Sep. 2014, 05 Sep. 2014, Invited oral presentation, 日本化学会コロイドおよび界面化学部会, 東京理科大学 神楽坂キャンパス
• 感温性表面の基礎物性解析とイギリス・オーストラリアでの研究生活の紹介
  石田尚之
  第8回中四国若手CE合宿, 04 Aug. 2014, 05 Aug. 2014, Invited oral presentation, 化学工学会中四国支部
• Direct Measurement of Solvophobic Attraction between Fluorinated Silica Surfaces by Atomic Force Microscopy
  Naoyuki Ishida, Yuhei Soga, Hiroyuki Imanaka, Koreyoshi Imamura
  第64回コロイドおよび界面化学討論会, 18 Sep. 2013, 20 Sep. 2013, Oral presentation
• Short-ranged Hydrophobic Attraction between Silanated Silica Surfaces and Solvophobic Attraction
  Naoyuki Ishida, Yuhei Soga, Hiroyuki Imanaka, Koreyoshi Imamura
  27th Conference of the European Colloid and Interface Society, 01 Sep. 2013, 06 Sep. 2013, Poster presentation
• 固体表面に固定した感温性高分子のAFMおよび QCM-Dによる構造・物性解析
  石田尚之
  平成２５年岡山地区化学工学懇話会 第１回特別講演会, 16 May 2013, 16 May 2013, Invited oral presentation
• 2次元微粒子配列構造の秩序性に与える表面間力の影響
  日下 靖之, 牛島 洋史, 石田 尚之
  化学工学会 第78年会, 17 Mar. 2013, 19 Mar. 2013, Oral presentation
• AFMおよびQCM-Dを用いた感温性高分子のミクロ構造直接観察と物性評価
  石田尚之
  H25オレオマテリアル部会関西地区講演会, 07 Jan. 2013, 07 Jan. 2013, Invited oral presentation
• 3P-180 Screening of novel gold affinity peptide and its application on protein immobilization
  Shigemori Yojiro; Ishida Naoyuki; Imamura Koreyoshi; Takahashi Yuichiro; Imanaka Hiroyuki
  日本生物工学会大会講演要旨集, 2013, 2013, 2013, 日本生物工学会
• 2P-076 The influence of orientation and density of immobilized ligand molecule on biomolecular interaction
  Matsushita Runa; Ishida Naoyuki; Imamura Koreyoshi; Imanaka Hiroyuki
  日本生物工学会大会講演要旨集, 2013, 2013, 2013, 日本生物工学会
• Nanostructural Analysis of Poly(N-isopropylacryamide) Grafted onto Solid Surface Using AFM and QCM-D
  Naoyuki Ishida, Simon Biggs
  10th Japan-Korea Symposium on Materials & Interface International Symposium on Frontiers in Chemical Engineering, 07 Nov. 2012, 10 Nov. 2012, Invited oral presentation
• Effect of Surface Forces on Ordering of Two-dimensional Colloidal Crystals Formed on Polyelectrolyte Multilayers
  Yasuyuki Kusaka, Naoyuki Ishida, Hirobumi Ushijima
  The 10th International Symposium on Electrokinetic Phenomena (ELKIN 10th), 20 May 2012, 24 May 2012, Poster presentation
• An AFM Study on Effects of Surface Forces on Formation of Two Dimensional Colloidal Monolayers
  Yasuyuki Kusaka, Naoyuki Ishida, Hirobumi Ushijima
  The 10th International Symposium on Electrokinetic Phenomena (ELKIN 10th), 20 May 2012, 24 May 2012, Poster presentation
• Force between Hydrophobic Silica Surfaces—Measurement of ‘True’ Hydrophobic Attraction
  Naoyuki Ishida, Yasuyuki Kusaka, Hirobumi Ushijima
  The 10th International Symposium on Electrokinetic Phenomena (ELKIN 10th), 20 May 2012, 24 May 2012, Poster presentation
• Interaction Force between Hydrophobic Surfaces without Nanobubbles—Measurement of ‘True’ Hydrophobic Attraction
  Naoyuki Ishida, Yasuyuki Kusaka, Hirobumi Ushijima
  International Association of Colloid and Interface Scientists 2012, 13 May 2012, 18 May 2012, Oral presentation
• Experimental investigation of the interaction forces between solid surfaces - Seeking the origin of “Hydrophobic Attraction”
  Naoyuki Ishida
  Australian/MANA workshop on Nanoarchitectonics for Innoative Materials & Systems, 10 May 2012, 11 May 2012, Invited oral presentation
• Effect of Surface Forces on Ordering of Two-dimensional Colloidal Crystals Formed on Polyelectrolyte Multilayers
  Yasuyuki Kusaka, Naoyuki Ishida, Hirobumi Ushijima
  Japan-Australia Colloid and Interface Science Symposium, 21 Nov. 2011, 23 Nov. 2011, Oral presentation
• Structural Behaviour of Poly(N-isopropylacryamide) Grafted onto Solid Surface: Effect of Molecular Weight and Grafting Density
  Naoyuki Ishida, Simon Biggs
  第63回コロイドおよび界面化学討論会, 07 Sep. 2011, 09 Sep. 2011, Oral presentation
• 感温性高分子poly(N-isopropylacrylamide)の微粒子分散系制御への適用
  石田尚之
  第3回先端微粒子ハンドリング講演会, 07 Sep. 2011, 07 Sep. 2011, Invited oral presentation, 化学工学会 粒子・流体プロセス部会 粉体プロセス分科会
• 疎水性引力の評価と発現機構
  石田尚之
  第7回日本接着学会関西支部 若手の会, 30 Aug. 2011, 30 Aug. 2011, Invited oral presentation
• 柔らかな界面における相互作用の直接測定による評価
  石田尚之
  界面動電現象研究会サマースクール2011 ?微生物とコロイドのソフト界面?, 27 Aug. 2011, 27 Aug. 2011, Keynote oral presentation, 界面動電現象研究会
• 表面に固定した感温性高分子poly(N-isopropylacrylamide)のQCM-DおよびAFMによる構造解析
  石田尚之
  QCMテクノロジーセミナー2011, 12 Aug. 2011, 12 Aug. 2011, Invited oral presentation, メイワフォーシス
• 「真の」疎水性引力の評価 —ナノ気泡を除いた疎水性表面間の相互作用—
  石田尚之
  2011年度粉体工学会春期研究発表会, 24 May 2011, 25 May 2011, Oral presentation
• Hydrophobic Force between Silanated Silica Surfaces without Bubbles - Measurement of ‘True’ Hydrophobic Attraction
  Naoyuki Ishida
  The Fifth Biennial Australian Colloid and Interface Symposium, 30 Jan. 2011, 03 Feb. 2011, Oral presentation
• he Effect of Grafting Density on Phase Transition Behaviour for Poly(N-isopropylacryamide) Brushes in Aqueous Solutions
  Naoyuki Ishida, Simon Biggs
  The Fifth Biennial Australian Colloid and Interface Symposium, 30 Jan. 2011, 03 Feb. 2011, Oral presentation
• Interaction Forces between Silanated Silica Surfaces: Measuring the ‘True’ Hydrophobic Attraction
  Naoyuki Ishida
  IInternational Conference on Nanoscopic Colloid and Surface Science (NCSS2010), 19 Sep. 2010, 22 Sep. 2010, Oral presentation
• 人工ダイヤモンドおよびグラファイトへの無機抑制剤の吸着と浮遊率の関係
  石田 尚之; ダンフォード ムアイポポ; 日下 英史; 福中 康博; 中廣 吉孝
  一般発表(研究・業績発表)講演要旨集, 29 Mar. 1996, 29 Mar. 1996, 29 Mar. 1996

Research Projects

• Maicro- and Nano-plastics behaviros in soils and model development
  濱本 昌一郎; 竹村 貴人; 斎藤 健志; 西村 拓; 大竹 豊; 二瓶 直登; 杉本 卓也; 石田 尚之
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2024/04 -2028/03, Grant-in-Aid for Scientific Research (A), Hokkaido University
• Transport of Colloidal Particles in Unsaturated Soils
  濱本 昌一郎; 竹村 貴人; 大竹 豊; 石田 尚之; 杉本 卓也
  本研究では，気液界面存在下における多孔質体中のコロイド粒子挙動の実態把握に基づき、不飽和土壌内でのコロイド粒子の土壌内移動特性を解明することを目的とする。本年度はまず、X線CTを用いた不飽和土壌の間隙構造のキャラクタリゼーションと、間隙構造パラメータと各種物質輸送係数の関係について調べた。粒径の異なる砂試料を用いて、異なる水分状態（完全飽和、封入不飽和、連続不飽和（脱水・吸水過程））にある砂充填カラムを作成し、物質輸送係数として飽和・不飽和透水係数、ガス拡散係数、通気係数を測定した。また各水分条件において、X線CT装置を用いて液相・気相の間隙径分布に加え、各相の屈曲度・連結性を定量的に評価した。結果、封入空気の気泡径と分布が封入不飽和状態下での透水係数の低下度に大きく影響を与えること、同一水分条件下で吸水過程は脱水過程に比べ粗大間隙ネットワークの連結性が高く、結果としてガス拡散係数および通気係数が高くなること、など気液界面存在下における間隙構造と物質輸送特性に関する貴重な基礎的知見が得られた。さらに本年度は、間隙水の化学的特性が多孔質体中のコロイド挙動に与える影響を調べるため、Na+やCa2+などのイオン種やイオン濃度を変えた条件で砂充填カラムへのラテックス粒子注入実験を行った。二価陽イオン存在下ではコロイド粒子沈着が促進することや、NaとCaとのイオン交換反応時における沈着コロイド粒子の脱離挙動が、DLVO理論に基づくコロイド粒子と充填粒子表面との相互作用力によって説明できることを示した。また次年度に向けて、マイクロ間隙流路を用いたコロイド粒子挙動直接観察の装置セットアップや、AFMを用いたコロイド粒子と充填粒子表面との相互作用力測定に関する実験を開始した。, Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B), 2021/04 -2024/03, Grant-in-Aid for Scientific Research (B), The University of Tokyo
• 新たな視点に基づく非水液体中での微粒子分散評価体系の構築
  石田 尚之; 森 隆昌
  本研究は、有機溶媒中で固体表面間に働く相互作用力を原子間力顕微鏡(AFM)で測定するとともに、溶媒分子の表面への親和性の相関をパルス核磁気共鳴(NMR)法によって評価し、これらが粒子の分散安定性相互作用に与える影響を検討することで、新たな非水液体中での微粒子分散評価体系の構築に資するものである。 本年度は、表面改質を施さない場合、またシランカップリング剤での表面改質により各種官能基を担持した場合のシリカ粒子および表面について、各種有機溶媒中への分散液のNMR緩和時間を粒子濃度に対して測定し、固体－溶媒分子間の相互作用の強弱を評価した。またAFMにより粒子－基板間の表面間力を測定するとともに、バルク分散液の分散凝集特性の評価も行った。 結果においては、表面改質の有無や表面に担持した官能基の種類によらず、ほとんどの場合には溶媒中で粒子が分散する系において、表面間に～5 nmの短距離の斥力が作用し、凝集する系ではvan der Waals引力とみられる引力が作用することが確認された。これとNMRによる緩和時間測定で得られた固体－溶媒分子間の相互作用の強弱と、固体表面間の斥力または引力の発生を比較すると、両者には明らかな相関がある可能性が強いことがわかった。つまり緩和時間が短く固体－溶媒分子間の相互作用が強いときには固体表面間に斥力が作用し、緩和時間が長く固体－溶媒分子間の相互作用が弱いときには固体表面間には引力が作用した。すなわち、粒子表面－溶媒分子間の相互作用が強い場合には固体表面に吸着した溶媒分子間の溶媒和力によって、微粒子の分散安定がもたらされていることが示唆される。, 日本学術振興会, 科学研究費助成事業 基盤研究(B), 2021/04 -2024/03, 基盤研究(B), 岡山大学
• Efficient spatial confinement of incident electric field on subwavelength-scale structures having cycloid-like cross section and its application for sensitive biosensor
  Fukuda Takashi
  From our preliminary research, we have found that subwavelength-scale structures having cycloid-like cross section is effective for electric field confinement, and it is suitable for highly sensitive biosensing. According to the basis, we have developed the functional structure, fabrication procedure especially obtaining the sensing tip on flexible polymer films, and surface functionalization of the sensor chip. As a result, we achieved sufficient progress towards the realization of a highly sensitive portable sensing system that obviates the spectroscopic measurement with a spectrophotometer. Furthermore, concerning the development on high-speed calculation of electric field propagation, we have found succeeded to derive a new analytical solution for Helmholtz equation in the parabolic coordinate system. This result is expected not only effective for the exploration of functional sub-wavelebgth structures but also to be applied to a wide range of physical phenomena in the future., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B), 2014/04 -2018/03, Grant-in-Aid for Scientific Research (B), National Institute of Advanced Industrial Science and Technology
• Enhancement of local electric field in the atto-liter space and its application for ultra sensitive screening tips
  FUKUDA Takashi; ISHIDA Naoyuki; ABE Koji; USHIJIMA Hirobumi; FUKUDA Nobuko; EMOTO Akira
  In this research, it have aimed to fabricate a controlled atto-liter space whose dimension below a sub-wavelength and to confine a plasmon resonance field into the space in order to achieve ultrahigh-sensitive biosensing. Then, we obtained a unique structure fabrication method templating polystylene spherical particles and an appropriate condition for structure replication via nanoimprinting process, and also proved that the local surface plasmon chip exhibits ultra-high sensitivity even for the sample containing a certain contaminant. Moreover, we have developed a prototype testing system consists of palmtop optical measurement apparatus and remote operation terminal that was not included in the original plan of this project, and succeeded to clarify a practical image of the real application. The outcome of the research will lead to the realization of bio-screening testing and point-of-care testing with a feature of label-free, simple, and ultra-high sensitivity., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B), 2011/04 -2014/03, Grant-in-Aid for Scientific Research (B), National Institute of Advanced Industrial Science and Technology