• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2012 Fiscal Year Annual Research Report

多重モード応答型分子履歴認識ゲート膜の開発

Research Project

Project/Area Number 24360326
Research Category

Grant-in-Aid for Scientific Research (B)

Research InstitutionTokyo Institute of Technology

Principal Investigator

山口 猛央  東京工業大学, 資源化学研究所, 教授 (30272363)

Co-Investigator(Kenkyū-buntansha) 田巻 孝敬  東京工業大学, 資源化学研究所, 講師 (80567438)
大橋 秀伯  東京工業大学, 資源化学研究所, 助教 (00541179)
Project Period (FY) 2012-04-01 – 2015-03-31
Keywords履歴認識 / 分子シグナル / 多重相 / 信号増幅 / ポリアンフォライト / グラフトポリマー固定化膜 / プラズマグラフト重合 / パーオキサイド基
Research Abstract

生体においては極微量のシグナル分子の存在を記憶することで、多彩で柔軟な生命現象を発現することが知られている。生体と同様に、微小な分子シグナルを履歴として記憶し、大きな出力へと変換する簡便なシステムがあれば、センサーから物質生産に至るまで非常に広範な応用が期待される。
正負双方の電荷を持つポリアンフォライトは、複数の相互作用の協調によりpHなどの履歴に応じて複数の準安定な相(多重相)を採りうる。本研究ではこのポリアンフォライトに分子認識部位(クラウンエーテル)を導入した分子認識ポリアンフォライトを創出し、これを多孔質基材にグラフトポリマーとして固定化することで、環境・分子シグナル履歴に応じて多様な機能を示す多重モード応答型分子履歴認識ゲート膜の開発を目指している。
基材を傷つけずにリニアポリマーをグラフト固定化できる有用な手法としてプラズマグラフト重合法を採用しているが、従来法では電荷を持つモノマ0のグラフトは困難であった。本年度の研究では、添加剤としてドデシル硫酸ナトリウム(SDS)を加えることにより、分子認識ポリアンフォライトの構成要素であるクラウンモノマー・正電荷モノマー・負電荷モノマーそれぞれのプラズマグラフト重合に成功した。またこれらのモノマーのグラフト共重合及び共重合比の制御にも成功している。
これに加え、SDSがプラズマグラフト重合に与える効果の解明も行った。SDSによって疎水性のポリエチレン多孔質基材の細孔内部にまでモノマー溶液が浸潤することで、細孔内部までグラフト重合が行われることを見出だした。さらにグラフト反応開始基であるパーオキサイド基の解裂に酸が関わっていることを見出だし、常温から程度の低温でのグラフト反応に成功している。

Current Status of Research Progress
Current Status of Research Progress

1: Research has progressed more than it was originally planned.

Reason

今年度は当初予定していた、プラズマグラフト重合法による各種モノマー(分子認識モノマー・正荷電モノマー・負荷電モノマー)のグラフト固定化・制御に加え、プラズマグラフト重合進行に重要な要件をも見出だしている。通常パーオキサイド基の解裂には80℃程度の高温が必要であるが、酸により常温程度で解裂反応が進行することを発見し、熱に弱いモノマーへの応用可能性を開いた。この知見はグラフト重合のみならず、低分子開始剤を用いた重合にも応用できる可能性があり、さらなる機能性材料の創出にも重要な結果であると考えている。

Strategy for Future Research Activity

平成25年度には、24年度に作成に成功した分子認識ポリアンフォライトグラフト膜に対して、膜透過流速・浸透圧評価を行うことで多重モードの評価を試みる。また膜にグラフトされたポリアンフォライトを単離してその性状(共重合組成・分子量分布・数密度)を調べることで、分子履歴認識ポリアンフォライトの形態変化と膜細孔径変化の定量的な議論を行う。ここで得た単離グラフトポリマーの性状は平成26年度の多重モードの解析にも活かす、
平成26年度には、分子認識ポリアンフォライトグラフト鎖中において、各種相互作用を個別に評価することで各種相互作用の寄与の評価を行う。例えば膜中での水素結合・疎水性相互作用を膜の2次元IRや固体NMRにより、また膜の荷電状態を滴定・膜電位測定を通して評価する。この結果と上記のグラフト鎖の性状との関連付けを行うことで、多重モード応答分子膜の動作機構の理解及びそのモデル化を通して、応用用途に応じた膜の設計を行う.

Expenditure Plans for the Next FY Research Funding

備品として膜の形態観察を行うための蛍光顕微鏡システム及び反応生成物確認・単離グラフト鎖分子量確認のための液体クロマトグラフィーを計上している。これに加え適切な備品費・消耗品費・旅費等を予算として計上している。

  • Research Products

    (39 results)

All 2013 2012 Other

All Journal Article (9 results) (of which Peer Reviewed: 9 results) Presentation (28 results) Book (1 results) Remarks (1 results)

  • [Journal Article] Introduction of Size-Controlled Nafion/Zr02 Nanocomposite Electrolyte into Primary Pores for High Pt Utilization in PEFCs2013

    • Author(s)
      Tatsuya Nakajima, Takanori Tamaki, Hidenori Ohashi, and Takeo Yamaguchi
    • Journal Title

      Journal of the Electrochemical Society

      Volume: 160 Pages: F129 F134

    • DOI

      10.1149/2.065302jes

    • Peer Reviewed
  • [Journal Article] Improvement of Thermal-Stability of Anion Exchange Membranes for Fuel Cell Applications by Controlling Water State2013

    • Author(s)
      Hyangmi Jung, Hidenori Ohashi, Takanori Tamaki. and Takeo Yamaguchi
    • Journal Title

      Chemistry Letters

      Volume: 4 Pages: 14-16

    • DOI

      10.1246/cl.2013.14

    • Peer Reviewed
  • [Journal Article] A Molecular Recognition Moiety and its Target Biomolecule Interact in Switching Enzyme Activity2013

    • Author(s)
      Yuhei Oshiba. Takanori Tamaki. Hidenori Ohashi, Hidehiko Hirakawa, Satoshi Yamaguchi, Teruyuki Nagamune, and Takeo Yamaguchi
    • Journal Title

      Journal of Bioscience and Bioengineering

      Volume: (in press)

    • Peer Reviewed
  • [Journal Article] Enhanced Oxygen Reduction Reaction by Bimetallic CoPt and PdPt Nanocrystals2013

    • Author(s)
      Bhalchandra Anand Kakade, Hailin Wang, Takanori Tamaki, Hidenori Ohashi, and Takeo Yamaguchi
    • Journal Title

      RSC Advances

      Volume: (掲載決定)

    • Peer Reviewed
  • [Journal Article] Conversion of a Molecular Signal into a Visual Color based on the Permeation of Nanoparticles through a Biomolecule-Recognition Gating Membrane2012

    • Author(s)
      Yuuki Sugawara, Hidenori Kuroki, Takanori Tamaki, Hidenori Ohashi, and Takeo Yamaguchi
    • Journal Title

      Analytical Methods

      Volume: 4 Pages: 2635-2637

    • DOI

      10.1039/c2ay25265a

    • Peer Reviewed
  • [Journal Article] Fabrication of Precursor Membrane with Reactive Groups via Plasma-Induced Graft Polymerization2012

    • Author(s)
      Hidenori Ohashi, Xueqin Chi, Toshio Shimada. Takanori Tamaki, and Takeo Yamaguchi
    • Journal Title

      Journal of Photopolymer Science and Technology

      Volume: 25 Pages: 555-557

    • DOI

      10.2494/photopolymer.25.5554

    • Peer Reviewed
  • [Journal Article] The Effect of Particle Size and Surface Area on the Ion Conductivity of Layered Double Hydroxide2012

    • Author(s)
      Takanori Tamaki, Nobumitsu Nakanishi. Hidenori Ohashi, and Takeo Yamaguchi
    • Journal Title

      Electrochemistry Communications

      Volume: 25 Pages: 50-53

    • DOI

      10.1016/j.elecom.2012.09.003

    • Peer Reviewed
  • [Journal Article] The Influence of Spacer Length between Actuator and Sensor on their Mutual Communications in Poly(N-Isopropylacrylamide-co-β-Cyclodextrin), an Autonomous Coordinative Shrinking/Swellng Polymer2012

    • Author(s)
      Hidenori Ohashi, Tomoaki Abe, Takanori Tamaki, and Takeo Yamaguchi
    • Journal Title

      Macromolecules

      Volume: 45 Pages: 9742-9750

    • DOI

      10.1021/ma3018603

    • Peer Reviewed
  • [Journal Article] Control of the Poly(N-isopropylacrylamide) Phase Transition via a Single Strand-Double Strand Transformation of Conjugated DNA2012

    • Author(s)
      Yuki Sugawara, Takanori Tamaki, Hidenori Ohashi, and Takeo Yamaguchi
    • Journal Title

      Soft Matter

      Volume: 4 Pages: 2635-2637

    • DOI

      10.1039/C3SM27230C

    • Peer Reviewed
  • [Presentation] 燃料電池材料および燃料電池におけるシステム設計に関する研究2013

    • Author(s)
      山口猛央
    • Organizer
      化学工学会第78年会
    • Place of Presentation
      大阪大学(招待講演)
    • Year and Date
      20130317-20130319
  • [Presentation] PtPd Nanoparticles Dispersed on 3-D Graphite Oxide-Nanoribbon Composite As Electrocatalysts for Direct Methanol Fuel Cells2012

    • Author(s)
      Hailin Wang, Takanori Tamaki, Hidenori Ohashi. and Takeo Yamaguchi
    • Organizer
      The First International Education Forum on Environment and Energy Science
    • Place of Presentation
      Waikoloa, Hawaii, USA
    • Year and Date
      20121214-20121218
  • [Presentation] Peroxide Method of Plasma-Induced Graft Polymerization Facilitated by SDS for Fabricating Functional Materials2012

    • Author(s)
      Xueqin Chi. Hidenori Ohashi, Takanori Tamaki, and Takeo Yamaguchi
    • Organizer
      The First International Education Forum on Environment and Rnergy Science
    • Place of Presentation
      Waikoloa, Hawaii, USA
    • Year and Date
      20121214-20121218
  • [Presentation] Improvement of Anion Exchange Membrane Properties for Fuel Cell Applications by Controlling Physical State of Water2012

    • Author(s)
      Hyangmi 亅ung, Hidenori Ohashi, Takanori Tamaki、 and Takeo Yamaguchi
    • Organizer
      The 9th SPSJ International Polymer Conference (IPC 2012)
    • Place of Presentation
      Kobe, Japan
    • Year and Date
      20121211-20121214
  • [Presentation] Advanced Membranes Inspired from Bio-Systems2012

    • Author(s)
      Takeo Yamaguchi
    • Organizer
      ISAEM2012/AMDI-3 (Invited Lecture)
    • Place of Presentation
      Toyohashi, JAPAN
    • Year and Date
      20121105-20121108
  • [Presentation] Pore Filling Anion Exchange Membranes and Membrane Electrode Assemblies for Solid-State Alkaline Fuel Cells2012

    • Author(s)
      Takeo Yamaguchi, Han Zhang, Hyangmi Jung, Hidenori Ohashi, and Takanori Tamaki
    • Organizer
      2012 AIChE Anuual Meeting
    • Place of Presentation
      Pittsburgh, Pennsylvania, USA
    • Year and Date
      20121028-20121128
  • [Presentation] High-Surface-Area Three-Dimensional Enzymatic Biofuel Cell Electrode Made of Redox-Polymer Grafted Carbon Black2012

    • Author(s)
      Takanori Tamaki, Hidenori Ohashi, and Takeo Yamaguchi
    • Organizer
      IUMRS-ICEM2012
    • Place of Presentation
      Yokohama, JAPAN
    • Year and Date
      20120923-20120928
  • [Presentation] Improvement of Properties of Anion Exchange Membranes for Fuel Cell Applications by Controlling Water State2012

    • Author(s)
      Hyangmi Jung, Takanori Tamaki, Hidenori Ohashi、and Takeo Yamaguchi
    • Organizer
      6th International Fuel Cell Workshop 2012
    • Place of Presentation
      Kofu, JAPAN
    • Year and Date
      20120802-20120803
  • [Presentation] PtPd Nanoparticles Dispersed on 3-D Carbon Composite Materials as Electrocatalysts for Direct Methanol Fuel Cells2012

    • Author(s)
      Hailin Wang, Balachandra Anand Kakade. Hidenori Ohashi. Takanori Tamaki, and Takeo Yamaguchi
    • Organizer
      6th International Fuel Cell Workshop 2012
    • Place of Presentation
      Kofu, JAPAN
    • Year and Date
      20120802-20120803
  • [Presentation] Direction and Management of Water Movement in Solid-State Alkaline Fuel Cells2012

    • Author(s)
      Han Zhang, Hidenori Ohashi, Takanori Tamaki, and Takeo Yamaguchi
    • Organizer
      6th International Fuel Cell Workshop 2012
    • Place of Presentation
      Kofu, JAPAN
    • Year and Date
      20120802-20120803
  • [Presentation] Improvement of Properties of Anion Exchange Membranes for Fuel Cell Applications by Controllng Water State2012

    • Author(s)
      Hyangmi Jung, Takanori Tamaki, Hidenori Ohashi, and Takeo Yamaguchi
    • Organizer
      XXIX EMS Summer School 0n Membranes
    • Place of Presentation
      Nancy, FRANCE
    • Year and Date
      20120707-20120710
  • [Presentation] A Low Temperature Peroxide Method of Plasma-Induced Graft Polymerization for2012

    • Author(s)
      Xueqin Chi, Hidenori Ohashi, Takanori Tamaki、and Takeo Yamaguchi
    • Organizer
      XXIX EMS Summer School on Membranes
    • Place of Presentation
      Nancy, FRANCE
    • Year and Date
      20120707-20120710
  • [Presentation] Novel Proton Conducting Membranes utilizing Nano-Capping and Pore-Filing Technologies for PEMFCs2012

    • Author(s)
      Takeo Yamaguchi, Takashi Aonuma, Takaya Ogawa, Takanori Tamaki, and Hidenori Ohashi
    • Organizer
      The 7th Conference of Aseanian Membrane Society (AMS7)
    • Place of Presentation
      Haeundae Grand Hotel, Busan, KOREA
    • Year and Date
      20120704-20120706
  • [Presentation] A Low Temperature Peroxide Method of Plasma-Induced Graft Polymerization for Porous Membranes2012

    • Author(s)
      Xueqin Chi, Hidenori Ohashi, Takanori Tamaki、and Takeo Yamaguchi
    • Organizer
      The 7th Conference of Aseanian Membrane Society (AMS7)
    • Place of Presentation
      Haeundae Grand Hotel, Busan, KOREA
    • Year and Date
      20120704-20120706
  • [Presentation] Fabrication of Precursor Membrane with Reactive Groups via Plasma-Induced Gran Polymerization2012

    • Author(s)
      Hidenori Ohashi, Chi Xueqin, Toshio Shimada, Takanori Tamaki, and Takeo Yamaguchi
    • Organizer
      The 29th International Conference of Photopolymer Science and Technology Materials & Processes for Advanced Microlithography 皿d Nanotechnology
    • Place of Presentation
      Chiba, JAPAN
    • Year and Date
      20120626-20120629
  • [Presentation] Control of P450cam Activity with the Avidin Recognition2012

    • Author(s)
      Yuhei Oshiba, Takanori Tamaki, Hidenori Ohashi, Taichi lto, Hidehiko Hirakawa, Satoshi Yamaguchi, Teruyuki Nagamune, and Takeo Yamaguchi
    • Organizer
      The nth International Symposium on Cytochrome P450 Biodiversity and Biotechnology
    • Place of Presentation
      the Museum of Natural Sciences, Turin, ITALY
    • Year and Date
      20120622-20120626
  • [Presentation] Fast Proton Conduction at the Interface of Zr Particle and Electrolyte Polymer2012

    • Author(s)
      Takaya Ogawa, Takanori Tamaki, Hidenori Ohashi, Hiroshi Ushiyama. Koichi Yamashita. and Takeo Yamaguchi
    • Organizer
      The 10th International Symposium on Electrokinetic Phenomena
    • Place of Presentation
      Tsukuba, JAPAN
    • Year and Date
      20120520-20120524
  • [Presentation] Novel 3-D Graphite Oxide-Nanoribbon Supported Metal Catalysts for Methanol 0xidation Reaction2012

    • Author(s)
      Hailin Wang, Balachandra Anand Kakade, Hidenori Ohashi. Takanori Tamaki, and Takeo Yamaguchi
    • Organizer
      The 6th Pacific Rim Meeting on Electrochemical and Solid-State Science
    • Place of Presentation
      Tsukuba, JAPAN
    • Year and Date
      20120520-20120524
  • [Presentation] Improvement of Properties of Anion Exchange Membranes for Fuel Cell Applications by Controlling Water State2012

    • Author(s)
      Hyangmi Jung, Hidenori Ohashi, Takanori Tamaki, and Takeo Yamaguchi
    • Organizer
      The 6th Pacific Rim Meeting on Electrochemical and Solid-State Science
    • Place of Presentation
      Tsukuba, JAPAN
    • Year and Date
      20120520-20120524
  • [Presentation] Enhanced ORR and MOR Activities by Bimetallic CoPt and PdPt Electrocatalysts2012

    • Author(s)
      Balachandra Anand Kakade. Takanori Tamaki, Hidenori Ohashi, and Takeo Yamaguchi
    • Organizer
      The 6th Pacific Rim Meeting on Electrochemical and Solid-State Science
    • Place of Presentation
      Tsukuba, JAPAN
    • Year and Date
      20120520-20120524
  • [Presentation] Surface Modification of Carbon Black toward Retention of Enzyme Activity in High-Surface-Area Enzymatic Biofuel Cell Electrodes2012

    • Author(s)
      Takanori Tamaki, Hidenori Ohashi, and Takeo Yamaguchi
    • Organizer
      The 6th Pacific Rim Meeting on Electrochemical and Solid-State Science
    • Place of Presentation
      Tsukuba, JAPAN
    • Year and Date
      20120520-20120524
  • [Presentation] Bio-System Inspired Membranes and Membranes for PEMFC2012

    • Author(s)
      Takeo Yamaguchi
    • Organizer
      Clarkson University (Invited Lecture)
    • Place of Presentation
      Potsdam, New York, USA
    • Year and Date
      20120520-20120524
  • [Presentation] 大型発電所はもういらない?~家庭や車で燃料電池発電~2012

    • Author(s)
      山口猛央
    • Organizer
      東工大の最先端研究
    • Place of Presentation
      東京工業大学(招待講演)
    • Year and Date
      2012-10-24
  • [Presentation] 自宅が発電所になる時代~燃料電池による高効率発電を目指して~2012

    • Author(s)
      山口猛央
    • Organizer
      四大学連合文化講演会
    • Place of Presentation
      東京(招待講演)
    • Year and Date
      2012-10-12
  • [Presentation] Improvement of Properties of Anion Exchange Membranes for Fuel Cell Applications by Controlling Water State2012

    • Author(s)
      Hyangmi Jung, Takanori Tamaki, Hidenori Ohashi. and Takeo Yamaguchi
    • Organizer
      The 5th International Forum on Multidisciplinary Education and Research for Energy Science
    • Place of Presentation
      Tokyo, JAPAN
    • Year and Date
      2012-09-07
  • [Presentation] Direction and Management of Water Movement in Solid-State Alkaline Fuel Cell2012

    • Author(s)
      Han Zhang. Hidenori Ohashi. Takanori Tamaki, and Takeo Yamaguchi
    • Organizer
      The 5th International Forum on Multidisciplinary Education and Research for Energy Science
    • Place of Presentation
      Tokyo, JAPAN
    • Year and Date
      2012-09-07
  • [Presentation] 生体システムから発想した機能膜~プラズマによる多孔膜細孔中での材料システムの構築~2012

    • Author(s)
      山口猛央
    • Organizer
      日本化学会関東支部講演会「プラズマで新たなモノ創りを!」
    • Place of Presentation
      東京 日本化学会(招待講演)
    • Year and Date
      2012-07-27
  • [Presentation] エネルギー資源の有効利川と燃料電池技術の現状と未来2012

    • Author(s)
      山口猛央
    • Organizer
      ナノェレクトロニクス研究会
    • Place of Presentation
      東京(招待講演)
    • Year and Date
      2012-07-25
  • [Book] バイオ部会ニューレター2012

    • Author(s)
      田巻孝敬・山口猛央
    • Total Pages
      4
    • Publisher
      化学工学会バイオ部会
  • [Remarks]

    • URL

      http://www.res.titech.ac.jp/~zairyosys/yamaguchilab/

URL: 

Published: 2014-07-16   Modified: 2015-01-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi