Preparation of stimuli-responsive pico-liter cup array

2011 Fiscal Year Final Research Report

• Project/Area Number: 22655036
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Single-year Grants
• Research Field: Polymer chemistry
• Research Institution: University of Hyogo
• Principal Investigator: YUSA Shin-ichi 兵庫県立大学, 大学院・工学研究科, 准教授 (00301432)
• Co-Investigator(Kenkyū-buntansha): FUJII Syuji 大阪工業大学, 工学部, 講師 (70434785)
• Project Period (FY): 2010 – 2011
• Keywords: 高分子薄膜・表面 / 有機無機ハイブリッド

Research Abstract

Gold was vacuum-deposited on one side of 6μm-diameter SiO_2 particles to prepare Janus particles(JPs). A thiol-terminated pH-responsive polymer(pAaH-SH), prepared via reversible addition-fragmentation chain transfer(RAFT) controlled radical polymerization, was immobilized on the gold surface of the JPs. The flocculation and dispersion behavior of pAaH-SH-grafted JPs was observed with an optical microscope, and was found to be controllable based on the solution pH. Furthermore, in this study it is aimed to prepare Au pico-liter cup array grafted pH-responsive polymer at inside using pAaH-SH-grafted JPs preparation method.

Research Products

• [Journal Article] pH-responsive hairy particles synthesized by dispersion polymerization with a macroinitiator as an inistab and their use as a gas-sensitive liquid marble stabilizer (2012)
  • Author(s): S. Fujii, K. Aono, M. Suzaki, S. Hamasaki, S. Yusa, Y. Nakamura
  • Journal Title: Macromolecules Volume: 45 Pages: 2863-2873
  • DOI: DOI:10.1021/ma300048m
  • Peer Reviewed
• [Journal Article] Effects of Homogenization Scheme of TiO2 Screen Printing Paste for Dye-Sensitized Solar Cells (2012)
  • Author(s): K. Takahashi, S. Ito, S. Yusa, T. Imamura, K. Tanimoto
  • Journal Title: International Journal of Photoenergy
  • DOI: DOI:10.1155/2012/405642
  • Peer Reviewed
• [Journal Article] Novel LaBO_3 hollow nanospheres of size 34±2 nm templated by polymeric micelles (2012)
  • Author(s): M. Sasidharan, N. Gunawardhana, N. Gunawardhana, H. N. Luitel, T. Yokoi, M. Inoue, S. Yusa, T. Watari, M. Yoshio, T. Tatsumi, K. Nakashima
  • Journal Title: Journal of Colloid and Interface Science Volume: 370 Pages: 51-57
  • DOI: DOI:10.1016/j.jcis.2011.12.050
  • Peer Reviewed
• [Journal Article] Novel MoO3 and WO_3 hollow nanospheres assembled with polymeric micelles (2012)
  • Author(s): J. Liu, M. Sasidharan, D. Liu, Y. Yokoyama, S. Yusa, K. Nakashima
  • Journal Title: Materials Letters Volume: 66 Pages: 25-28
  • DOI: DOI:10.1016/j.jcis.2011.12.050
  • Peer Reviewed
• [Journal Article] Synthesis of magnetic α-Fe_2O_3 and Fe_3O_4 hollow nanospheres for sustained release of ibuprofen (2012)
  • Author(s): M. Sasidharan, H. N. Luitel, N. Gunawardhana, M. Inoue, S. Yusa, T. Watari, K. Nakashima
  • Journal Title: Materials Letters Volume: 73 Pages: 4-7
  • DOI: DOI:10.1016/j.matlet.2011.12.058
  • Peer Reviewed
• [Journal Article] Synthesis of hollow BaSO_4 nanospheres templated by core. shell. corona type polymeric micelles (2012)
  • Author(s): B. P. Bastakoti, S. Guragain, Y. Yokoyama, S. Yusa, K. Nakashima
  • Journal Title: New J. Chem. Volume: 36 Pages: 125-129
  • DOI: DOI:10.1039/C1NJ20671K
  • Peer Reviewed
• [Journal Article] Self-assebly of cholesterol-containing water-soluble polymers (2012)
  • Author(s): S. Yusa
  • Journal Title: International Journal of Polymer Science
  • DOI: DOI:10.1155/2012/609767
  • Peer Reviewed
• [Journal Article] Periodic organosilica hollow nanospheres as anode materials for lithium ion rechargeable batteries (2011)
  • Author(s): N. Gunawardhana, T. Yokoi, M. Ito, M. Inoue, S. Yusa, M. Yoshio, T. Tatsumi
  • Journal Title: Nanoscale Volume: 3 Pages: 4768-4773
  • DOI: DOI:10.1039/C1NR10804B
  • Peer Reviewed
• [Journal Article] Preparation and Characterization of a pH-Responsive Core Cross-linked Polymer Micelle (2011)
  • Author(s): S. Kousaka, M. Sugahara, T. Endo, S. Yusa
  • Journal Title: Journal of Physics : Conference Series Volume: 272 Pages: 1-4
  • DOI: DOI:10.1088/1742-6596/272/1/012012
  • Peer Reviewed
• [Journal Article] Dye-Sensitized Solar Cells Using Surface-Stabilized Nanocrystalline-TiO_2 Electrodes Coated by Epoxy Polymer (2011)
  • Author(s): K. Tsujimoto, S. Ito, S. Yusa, T. Imamura
  • Journal Title: Energy Science and Technology Volume: 2 Pages: 74-78
  • DOI: DOI:10.3968/j.est.1923847920110202.125
  • Peer Reviewed
• [Journal Article] Solution Behaviour of Poly(N-isopropylacrylamide) in Water : Effect of Additives (2011)
  • Author(s): T. Patel, G. Ghosh, S. Yusa, P. Bahadur
  • Journal Title: Journal of Dispersion Science Technology Volume: 32 Pages: 1111-1118
  • DOI: DOI:10.1080/01932691.2010.497701
  • Peer Reviewed
• [Journal Article] Glycerol/starch/Na^+-montmorillonite nanocomposites : A XRD, FTIR, DSC and 1H NMR study (2011)
  • Author(s): H. Liu, D. Chaudhary, S. Yusa, M. O. Tade
  • Journal Title: Carbohydrate Polymers Volume: 83 Pages: 1591-1591
  • DOI: DOI:10.1016/j.carbpol.2010.10.018
  • Peer Reviewed
• [Journal Article] Preparation and characterization of sorbitol modified nanoclay with high amylose bionanocomposites (2011)
  • Author(s): H. Liu, D. Chaudhary, S. Yusa, M. O. Tade
  • Journal Title: Carbohydrate Polymers Volume: 85 Pages: 97-104
  • DOI: DOI:10.1016/j.carbpol.2011.01.058
  • Peer Reviewed
• [Journal Article] Surface-modified Tubular Glass Electrolyte for Portable Direct Methanol Fuel Cell (2011)
  • Author(s): M. Umeki, Y. Daiko, S. Yusa, A. Mineshige, M. Kobune, T. Yazawa
  • Journal Title: Chemistry Letters Volume: 40(6) Pages: 603-605
  • DOI: DOI:10.1246/cl.2011.603
  • Peer Reviewed
• [Journal Article] Novel titania hollow nanospheres of size 28±1 nm using soft-templates and their application for lithium-ion rechargeable batteries (2011)
  • Author(s): M. Sasidharan, K. Nakashima, N. Gunawardhana, T. Yokoi, M. Inoue, S. Yusa, M. Yoshio, T. Tatsumi
  • Journal Title: Chem. Commun Volume: 47 Pages: 6921-6923
  • DOI: DOI:10.1039/C1CC11902H
  • Peer Reviewed
• [Journal Article] Self-association behavior in water of an amphiphilic diblock copolymer comprised of anionic and dendritic blocks (2011)
  • Author(s): S. Yusa, Y. Shimada, T. Imae, Y. Morishima
  • Journal Title: Polym. Chem Volume: 2 Pages: 1815-1821
  • DOI: DOI:10.1039/C1PY00111F
  • Peer Reviewed
• [Journal Article] hermo-responsive behavior of hybrid core cross-linked polymer micelles with biocompatible shells (2011)
  • Author(s): F. Goto, K. Ishihara, Y. Iwasaki, K. Katayama, R. Enomoto, S. Yusa
  • Journal Title: Polymer Volume: 52 Pages: 2810-2818
  • DOI: DOI:10.1016/j.polymer.2011.04.033
  • Peer Reviewed
• [Journal Article] Solubilization of C60 by micellization with a thermoresponsive block copolymer in water : Characterization, singlet oxygen generation, and DNA photocleavage (2011)
  • Author(s): S. Yusa, S. Awa, M. Ito, T. Kawase, T. Takada, K. Nakashima, D. Liu, S. Yamago, Y. Morishima
  • Journal Title: Journal of Polymer Science Part A : Polymer Chemistry Volume: 49 Pages: 2761-2770
  • DOI: DOI:10.1002/pola.24709
  • Peer Reviewed
• [Journal Article] pH-responsive disruption of liquid marbles prepared from water and poly(6-(acrylamido) hexanoic acid)-grafted silica particles (2011)
  • Author(s): M. Inoue, S. Fujii, Y. Nakamura, Y. Iwasaki, S. Yusa
  • Journal Title: Polymer Journal Volume: 43 Pages: 778-784
  • DOI: DOI:10.1038/pj.2011.55
  • Peer Reviewed
• [Journal Article] Non-Surface Activity and Micellization Behavior of Cationic Amphiphilic Block Copolymer Synthesized by Reversible Addition-Fragmentation Chain Transfer Process (2011)
  • Author(s): A. Ghosh, S. Yusa, H. Matsuoka, Y. Saruwatari
  • Journal Title: Langmuir Volume: 27 Pages: 9237-9244
  • DOI: DOI:10.1021/la201550a
  • Peer Reviewed
• [Journal Article] Photo-induced Association Behavior of Poly(sodium acrylate) Bearing a Small Amount of Malachite Green (2011)
  • Author(s): S. Kousaka, M. Ito, S. Yusa
  • Journal Title: Journal of Polymer Science Part A : Polymer Chemistry Volume: 49 Pages: 4586-4593
  • DOI: DOI:10.1002/pola.24902
  • Peer Reviewed
• [Journal Article] Synthesis and Characterization of pH Sensitive Core-Shell-Corona Micelles of Poly(styrene-block-2-vinylpyridine-block-et hylene Oxide) ABC Triblock Copolymer in Aqueous Solutions (2011)
  • Author(s): B. Bharatiya, S. Yusa, V. Aswal, L. Abezgauz, D. Danino, P. Bahadur
  • Journal Title: Bulletin of the Chemical Society of Japan Volume: 84 Pages: 1227-1233
  • DOI: DOI:10.1246/bcsj.20110184
  • Peer Reviewed
• [Journal Article] Incorporation and release behavior of amitriptylene in core. shell-corona type triblock copolymer micelles (2011)
  • Author(s): B. P. Bastakoti, S. Guragain, Y. Yokoyama, S. Yusa, K. Nakashim
  • Journal Title: Colloids and Surfaces B : Biointerfaces Volume: 88 Pages: 734-740
  • DOI: DOI:10.1016/j.colsurfb.2011.08.009
  • Peer Reviewed
• [Journal Article] Dispersion Polymerization Using Hydroxy-Functional Macroazoinitiators as an Inistab (2011)
  • Author(s): S. Fujii, M. Suzaki, Y. Kakigi, K. Aono, S. Yusa, Y. Nakamura
  • Journal Title: Journal of Polymer Science Part A : Polymer Chemistry Journal Volume: 49 Pages: 1633-1643
  • DOI: DOI:10.1002/pola.24587
  • Peer Reviewed
• [Journal Article] Synthesis of Hollow CaCO_3 Nanospheres Templated by Micelles of Poly(styrene-b-acrylic acid-b-ethylene glycol) in Aqueous Solutions (2010)
  • Author(s): B. P. Bastakoti, S. Guragain, Y. Yokoyama, S. Yusa, K. Nakashima
  • Journal Title: Langmuir Volume: 27(1) Pages: 379-384
  • DOI: DOI:10.1021/la103660x
  • Peer Reviewed
• [Journal Article] Stimuli-Induced Core-Corona Inversion of Micelles of Water Soluble Poly(sodium 2-(acryl amido)-2-methylpropanesulfonate-b-N-isopropylacryl amide (2010)
  • Author(s): S. Guragain, B. P. Bastakoti, S. Yusa, K. Nakashima
  • Journal Title: Polymer Volume: 51 Pages: 3181-3186
  • DOI: DOI:10.1016/j.polymer.2010.05.004
  • Peer Reviewed
• [Journal Article] Hybrid micelle formation from poly(ethylene oxide-b-sodium2-acrylamido-1-propanesulf onate-b-styrene) and Fe3^+ion in aqueous solution (2010)
  • Author(s): B. P. Bastakoti, S. Guragain, Y. Yokoyama, S. Yusa, K. Nakashima
  • Journal Title: Colloid and Polymer Science Volume: 288 Pages: 991-996
  • DOI: DOI:10.1007/s00396-010-2223-9
  • Peer Reviewed
• [Journal Article] Synthesis of Hollow Silica Nanospheres Templated by Micelle of Poly(styrene-b-[3-(methacryloylamino) propyl] trimethylammonium chloride-b-ethylene oxide (2010)
  • Author(s): J. Liu, D. Liu, S. Manickam, Y. Yokoyama, S. Yusa, K. Nakashima
  • Journal Title: Chem. Lett Volume: 39 Pages: 584-585
  • DOI: DOI:10.1246/cl.2010.584
  • Peer Reviewed
• [Journal Article] pHに応答して多段階に会合挙動の変化するABCトリブロック共重合体の合成 (2010)
  • Author(s): 土肥美里, 遊佐真一, 島田善彦, 上坂昌大
  • Journal Title: 高分子論文集 Volume: 67 Pages: 341-349
  • DOI: DOI:10.1295/koron.67.341
  • Peer Reviewed
• [Journal Article] Mixed Micelles of Poly(styrene-b-3-(methacryloylamino) propy ltrimethylammonium chloride-b-ethylene oxide) and Anionic Amphiphiles in Aqueous Solutions (2010)
  • Author(s): J. Liu, A. Yoneda, D. Liu, Y. Yokoyama, S. Yusa, K. Nakashima
  • Journal Title: Canadian Journal of Chemistry Volume: 88 Pages: 208-216
  • DOI: DOI:10.1139/v09-159
  • Peer Reviewed
• [Journal Article] Micelle Formation of Poly(ethylene oxide-b-sodium 2-(acrylamido)-2-methyl-1-propane sulfonate-b-styrene) and Its Interaction with Dodecyl Trimethyl Ammonium Chloride and Dibucaine (2010)
  • Author(s): B. P. Bastakoti, S. Guragain, A. Yoneda, Y. Yokoyama, S. Yusa, K. Nakashima
  • Journal Title: Polym. Chem Volume: 1 Pages: 347-353
  • DOI: DOI:10.1039/B9PY00231F
  • Peer Reviewed
• [Journal Article] Facile strategy for stability control of gold nanoparticles synthesized by aqueous reduction method (2010)
  • Author(s): N. Sano, S. Yusa, N. Viriya-empikul, T. Charinpanitkul
  • Journal Title: Current Applied Physics Volume: 10 Pages: 708-714
  • DOI: DOI:10.1016/j.cap.2009.09.005
  • Peer Reviewed
• [Presentation] Preparation of Nanogel and Its pH-Responsive Behavior (2012)
  • Author(s): S. Yusa
  • Organizer: 1st International Symposium for Next Generation Macromolecular Science
  • Place of Presentation: 奈良先端科学技術大学院大学(奈良県)
  • Year and Date: 2012-03-21
• [Presentation] Block Copolymers with Pendant Phosphorylcholine Groups (2012)
  • Author(s): S. Yusa
  • Organizer: Korea-Japan Joint Symposium, Kitakyushu Science and Research Park
  • Place of Presentation: 北九州市立大学(福岡県)
  • Year and Date: 2012-02-08
• [Presentation] Self-Association Behavior of Two Oppositely Charged Diblock Copolymers Containing Poly ethylene glycol (2011)
  • Author(s): S. Yusa
  • Organizer: BIT's 1st Annual World Congress of Nano-S & T
  • Place of Presentation: 大連(中国)
  • Year and Date: 20111122-26
• [Presentation] pH-Responsive Behavior of Core-Cross-Linked Polymer Micelle (2011)
  • Author(s): S. Yusa
  • Organizer: International workshop on Novel Nanotechnology and Nanomaterials for Science for Human
  • Place of Presentation: 台湾科学技術大学(台湾)
  • Year and Date: 20111121-22
• [Presentation] Synthesis of Temperature Responsive Cationic Amphiphilic Block Copolymer by Reversible Addition-Fragmentation Chain Transfer Process and Their Self-assembly Studies (2010)
  • Author(s): A. Ghosh, S. Yusa, H. Matsuoka, Y. Saruwatari
  • Organizer: Pacifichem
  • Place of Presentation: Hawai(アメリカ)
  • Year and Date: 20101215-20
• [Presentation] Creation of pH-responsive silica gel micro particle (2010)
  • Author(s): M. Inoue, S. Yusa, Y. Morishima, Y. Nakamura, S. Fujii
  • Organizer: Pacifichem
  • Place of Presentation: Hawai(アメリカ)
  • Year and Date: 20101215-20
• [Presentation] Photo-Responsive Association Behavior of Leuco Dye-Containing Polyanion (2010)
  • Author(s): S. Kousaka, S. Yusa, Y. Morishima
  • Organizer: Pacifichem
  • Place of Presentation: Hawai(アメリカ)
  • Year and Date: 20101215-20
• [Presentation] Synthesis of thermo-responsive 4-arms star-shaped diblock copolymer (2010)
  • Author(s): M. Ito, S. Yusa, Y. Morishima, I. Kaneda
  • Organizer: Pacifichem
  • Place of Presentation: Hawai(アメリカ)
  • Year and Date: 20101215-20
• [Presentation] Synthesis of Biocompatible and Thermo-Responsive Polymer Micelles Cross-Linked by Gold Nano Particle (2010)
  • Author(s): F. Goto, S. Yusa, Y., Morishima, K. Ishihara
  • Organizer: Pacifichem
  • Place of Presentation: Hawai(アメリカ)
  • Year and Date: 20101215-20
• [Presentation] Thermally induced morphology change of thermoresponsive block copolymer micelles in aqueous solution (2010)
  • Author(s): K. Tanaka, T. Sato, S. Yusa
  • Organizer: Pacifichem
  • Place of Presentation: Hawai(アメリカ)
  • Year and Date: 20101215-20
• [Presentation] RAFT synthesis of cationic amphiphilic diblock copolymer and nanostructure analysis of its monolayer on the water surface (2010)
  • Author(s): S. Fujita, A. Ghosh, S. Yusa, Y. Saruwatari, H. Matsuoka
  • Organizer: Pacifichem
  • Place of Presentation: Hawai(アメリカ)
  • Year and Date: 20101215-20
• [Presentation] Structure of hollow silica nanospheres templated by micelle of poly(styrene-b-[3-(methacryloylamino) propyl] trimethylammonium chloride-b-ethylene oxide (2010)
  • Author(s): H. Noma, J. Liu, D. Liu, S. Manickam, Y. Yokoyama, S. Yusa, K. Nakashima
  • Organizer: Pacifichem
  • Place of Presentation: Hawai(アメリカ)
  • Year and Date: 20101215-20
• [Presentation] Synthesis of WO_3 and MoO_3 hollow nanospheres templated by polymeric micelle with core-shell-corona structure (2010)
  • Author(s): K. Nakashima, J. Liu, D. Liu, S. Manickam, Y. Yokoyama, S. Yusa
  • Organizer: Pacifichem
  • Place of Presentation: Hawai(アメリカ)
  • Year and Date: 20101215-20
• [Presentation] Polyion Complex Micelles with Two Oppositely Charged Diblock Copolymers Containing Poly(ethylene glycol) (2010)
  • Author(s): S. Yusa, Y. Yokoyama, Y. Morishima
  • Organizer: Pacifichem
  • Place of Presentation: Hawai(アメリカ)
  • Year and Date: 20101215-20
• [Presentation] pH-Responsive Behavior of Nanogel Based on a Core-Cross-Linked Core-Shell Micelle Formed From Block Copolymers Prepared via RAFT Controlled/Living Radical polymerization (2010)
  • Author(s): S. Kousaka, M. Sugahara, S. Yusa
  • Organizer: JST ERATO and CREST Joint Symposium
  • Place of Presentation: 兵庫県
  • Year and Date: 20100901-03
• [Presentation] Synthesis of CaCO_3 and BaCO_3 Hollow Nanospheres Templated by Micelles of Poly(ethylene glycol-b-acrylic acid-b-styrene (2010)
  • Author(s): B. P. Bastakoti, S. Guragain, Y. Yokoyama, S. Yusa, K. Nakashima
  • Organizer: 240th ACS National Meeting
  • Place of Presentation: Boston(アメリカ)
  • Year and Date: 20100822-26
• [Presentation] Cationic amphiphilic random copolymers with potential ability of fixation of organic pollutant in soil (2010)
  • Author(s): S. Yusa, I. Masamichi, M. Doi, Y. Kamihashi, Y. Morishima
  • Place of Presentation: Boston(アメリカ)
  • Year and Date: 20100822-26
• [Presentation] Synthesis of Biocompatible 4-Arm Star Amphiphatic Polymer and Its Association Behavior (2010)
  • Author(s): M. Ito, S. Yusa, Y. Morishima, I. Kaneda
  • Organizer: 5th Pacific Rim Conference on Rheology
  • Place of Presentation: 北海道大学(北海道)
  • Year and Date: 20100801-06
• [Presentation] Synthesis of Thermo-Responsive Hydrogel Cross-Linked by Gold Nano Colloid (2010)
  • Author(s): F. Goto, S. Yusa, Y. Morishima, I. Kazuhiko
  • Organizer: 5th Pacific Rim Conference on Rheology
  • Place of Presentation: 北海道大学(北海道)
  • Year and Date: 20100801-06
• [Presentation] Synthesis of Photo-Responsive Hydrogel Containing Leuco Dye (2010)
  • Author(s): S. Kousaka, S. Yusa, Y. Morishima
  • Organizer: 5th Pacific Rim Conference on Rheology
  • Place of Presentation: 北海道大学(北海道)
  • Year and Date: 20100801-06
• [Remarks]
  • URL: http://www.eng.u-hyogo.ac.jp/msc/yusa/index.html
• [Patent(Industrial Property Rights)] 金属造形物の製造方法及び積層造形用の金属樹脂複合体粉末 (2010)
  • Inventor(s): 山口篤、福本信次、遊佐真一、黒田義和、石塚道雄
  • Industrial Property Rights Holder: 山口篤、福本信次、遊佐真一、黒田義和、石塚道雄
  • Industrial Property Number: 特許、特許公開2010-202928
  • Filing Date: 2010-09-16