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人工脂質二重膜におけるドメイン構造の実験的探究

Publicly Offered Research

Project AreaDynamical ordering of biomolecular systems for creation of integrated functions
Project/Area Number 26102541
Research Category

Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionGakushuin University

Principal Investigator

岩田 耕一  学習院大学, 理学部, 教授 (90232678)

Project Period (FY) 2014-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2015: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2014: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords脂質二重膜 / ドメイン / 分光実験
Outline of Annual Research Achievements

生体膜を構成する脂質二重膜には,最大で30%程度のコレステロールが含まれている.コレステロールが添加されると,脂質二重膜の特性が大きく変化することが予想される.研究代表者らは,コレステロールを30%含むDPPCリポソーム脂質二重膜を調製して,このコレステロール含有脂質二重膜の中にプローブ分子としてtrans-スチルベンを可溶化した.可溶化されたtrans-スチルベンを最低励起1重項状態に光励起するとともに振動余剰エネルギーを与え,その後の最低励起1重項状態での冷却過程をピコ秒時間分解ラマン分光法で測定した.この実験で得られたコレステロール含有脂質二重膜中でのtrans-スチルベンの振動冷却の速度定数から,コレステロール含有脂質二重膜の熱拡散定数を見積もった.さらに,ピコ秒時間分解蛍光分光法によって脂質二重膜中でのtrans-スチルベンのtrans-cis光異性化反応の速度定数を測定して,この結果をもとにコレステロール含有脂質二重膜の粘度を見積もった.
A03班の加藤晃一教授および同教授の研究分担者である山口拓実准教授および矢木真穂助教との共同研究を開始した.「生体膜の表面が糖鎖で修飾されている場合に,生体膜自体の物性が糖鎖の影響をどの程度受けるのか」という問題に対する解答を得るために,加藤グループで合成された糖鎖修飾リン脂質を組み込んだ単層リポソーム脂質二重膜を調製し,ピコ秒時間分解けい光分光法によってその脂質二重膜の粘度を評価した.
脂質二重膜の一定の深さにおける粘度を見積もるために,trans-スチルベンで修飾したホスファチジルコリンを蛍光プローブとして開発した.この分子を含んだDMPCリポソーム脂質二重膜の時間分解蛍光測定を行い,その蛍光寿命から脂質二重膜の一定の深さにおける粘度を見積もる方法を提案した.

Research Progress Status

27年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

27年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • Research Products

    (28 results)

All 2016 2015 2014 Other

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Acknowledgement Compliant: 2 results) Presentation (23 results) (of which Int'l Joint Research: 7 results,  Invited: 12 results) Remarks (1 results)

  • [Journal Article] Time-resolved Raman Spectroscopy2016

    • Author(s)
      Hiro-o Hamatuchi and Koichi Iwata
    • Journal Title

      Encyclopedia of Spectroscopy and Spectrometry

      Volume: 3rd ed

    • NAID

      10016647952

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Femtosecond time-resolved near-infrared spectroscopy of oligothiophenes and polythiophene: Energy location and effective conjugation length of their low-lying excited states2015

    • Author(s)
      Shunnosuke Okino, Tomohisa Takaya, and Koichi Iwata
    • Journal Title

      Chem. Lett.

      Volume: 44 Issue: 8 Pages: 1059-1061

    • DOI

      10.1246/cl.150330

    • NAID

      130005092604

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Viscosity Heterogeneity inside Lipid Bilayers of Single-Component Phosphatidylcholine Liposomes Observed with Picosecond Time-Resolved Fluorescence Spectroscopy2014

    • Author(s)
      Yuki Nojima, Koichi Iwata
    • Journal Title

      J. Phys. Chem. B

      Volume: 118 Issue: 29 Pages: 8631-8641

    • DOI

      10.1021/jp503921e

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Rapid Microstructure Characterization of Polymer Thin Films with 2D-Array Multifocus Raman Microspectroscopy2014

    • Author(s)
      Ashok Zachariah Samuel, Sohshi Yabumoto, Kenichi Kawamura, and Koichi Iwata
    • Journal Title

      Analyst

      Volume: 140 Issue: 6 Pages: 1847-1851

    • DOI

      10.1039/c4an01983k

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Presentation] ピコ秒時間分解けい光分光法で観測された単一成分脂質二重膜における不均一構造2016

    • Author(s)
      北村捷,京極信輔,Manjusha Joshi,中村浩之,岩田耕一
    • Organizer
      日本化学会第96春季年会
    • Place of Presentation
      同志社大学(京田辺市)
    • Year and Date
      2016-03-27
    • Related Report
      2015 Annual Research Report
  • [Presentation] Femtosecond Time-resolved Near-infrared Absorption Spectroscopy of “Loose Electrons” as Photochemical Intermediates2016

    • Author(s)
      Koichi Iwata
    • Organizer
      Recent Advances in Molecular Spectroscopy: Funamentals and Applications in Materials and Biology (RAMS2016)
    • Place of Presentation
      Hyderabad (India)
    • Year and Date
      2016-03-03
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Characterizing lipid bilayer membranes with time-resolved spectroscopies2015

    • Author(s)
      Yuki Nojima, Sho Kitamura, Tomohisa Takaya, Koichi Iwata
    • Organizer
      2015 International Chemical Congress of the Pacific Basin Societies (Pacifichem 2015)
    • Place of Presentation
      Honolulu, Hawaii (USA)
    • Year and Date
      2015-12-16
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Lipid Bilayer Membranes as Field of Chemical Reactions – Characterization by Picosecond and Femtosecond Time‐resolved Spectroscopy2015

    • Author(s)
      Koichi Iwata
    • Organizer
      First International Symposium of Institute for Catalysis - Global Collaboration in Catalysis Science toward Sustainable Society
    • Place of Presentation
      Sapporo (Japan)
    • Year and Date
      2015-10-15
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Weak Molecular Interaction in Condensed Phases Examined with Time-resolved spectroscopies - Raman and Near-Infrared Absorption2015

    • Author(s)
      Koichi Iwata
    • Organizer
      5th Asian Spectroscopy Conference (ASC5)
    • Place of Presentation
      Sydney (Australia)
    • Year and Date
      2015-10-02
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Structure of porous PMMA thin film examined with multifocus Raman microspectroscopy2015

    • Author(s)
      Koichi Iwata, Ashok Zachariah Samuel, Sohshi Yabumoto, Kenichi Kawamura
    • Organizer
      SciX2015
    • Place of Presentation
      Providence, Rhode Island (USA)
    • Year and Date
      2015-09-28
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] コレステロールを添加したDPPC二重膜中でのエネルギー移動のピコ秒時間分解ラマン分光法による観測2015

    • Author(s)
      北村捷,髙屋智久,岩田耕一
    • Organizer
      第9回分子科学討論会
    • Place of Presentation
      東京工業大学(東京都目黒区)
    • Year and Date
      2015-09-19
    • Related Report
      2015 Annual Research Report
  • [Presentation] 脂質二重膜中でのビアントリルの光誘起電子移動反応のフェムト秒時間分解近赤外分光:膜を構成する脂質による反応の違い2015

    • Author(s)
      毛利豪,高屋智久,岩田耕一
    • Organizer
      第9回分子科学討論会
    • Place of Presentation
      東京工業大学(東京都目黒区)
    • Year and Date
      2015-09-18
    • Related Report
      2015 Annual Research Report
  • [Presentation] Energy transfer mechanism in liposome lipid bilayers studied with picosecond time-resolved Raman spectroscopy2015

    • Author(s)
      Yuki Nojima, Sho Kitamura, Tomohisa Takaya and Koichi Iwata
    • Organizer
      8th International Conference on Advanced Vibrational Spectroscopy
    • Place of Presentation
      ウイーン市(オーストリア)
    • Year and Date
      2015-07-12 – 2015-07-17
    • Related Report
      2014 Annual Research Report
  • [Presentation] Thermal Diffusivity of Lipid Bilayer Membranes Estimated with Picosecond Time-resolved Raman Spectroscopy2015

    • Author(s)
      Y. Nojima, T. Takaya, K. Iwata
    • Organizer
      3rd Taiwan International Symposium on Raman Spectroscopy (TISRS 2015)
    • Place of Presentation
      Sun-Moon Lake (Taiwan)
    • Year and Date
      2015-07-01
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Photoinduced Electron-Transfer Reaction of 9,9’-Bianthryl in Liposome Lipid Bilayers Observed with Femtosecond Time-Resolved Near-Infrared Spectroscopy2015

    • Author(s)
      Goh Mohri, Tomohisa Takaya, and Koichi Iwata
    • Organizer
      2015 Korea-Japan Symposium on Frontier Photoscience (KJFP-2015)
    • Place of Presentation
      Jeju (Korea)
    • Year and Date
      2015-06-27
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Ultrafast charge transfer dynamics of 9,9-bianthryl in ordinary solvents and in lipid bilayers2015

    • Author(s)
      T. Takaya, G. Mohri, and K. Iwata
    • Organizer
      Second Symposium on Weak Molecular Interactions
    • Place of Presentation
      東京都
    • Year and Date
      2015-03-06
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Energy transfer characteristics of lipid bilayers of phosphatidylcholine liposomes evaluated with picosecond time-resolved Raman spectroscopy2015

    • Author(s)
      Y. Nojima, T. Takaya, and K. Iwata
    • Organizer
      Second Symposium on Weak Molecular Interactions
    • Place of Presentation
      東京都
    • Year and Date
      2015-03-05
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Photoinduced electron-transfer reaction in bianthryl solubilized in lipid bilayers observed with femtosecond time-resolved near-IR spectroscopy2015

    • Author(s)
      G. Mohri, T. Takaya, and K. Iwata
    • Organizer
      Second Symposium on Weak Molecular Interactions
    • Place of Presentation
      東京都
    • Year and Date
      2015-03-05
    • Related Report
      2014 Annual Research Report
  • [Presentation] Local viscosity of phosphatidylcholine bilayer membranes estimated with picosecond time-resolved fluorescence spectroscopy2014

    • Author(s)
      Yuki Nojima and Koichi Iwata
    • Organizer
      SciX2014
    • Place of Presentation
      リノ市(米国)
    • Year and Date
      2014-09-30
    • Related Report
      2014 Annual Research Report
  • [Presentation] 脂質二重膜中に封入したビアントリルの光誘起電子移動反応のフェムト秒時間分解近赤外分光法による測定2014

    • Author(s)
      利 豪,髙屋 智久,岩田 耕一
    • Organizer
      第8回分子科学討論会
    • Place of Presentation
      広島県東広島市
    • Year and Date
      2014-09-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] 高速時間分解分光法を用いた生化学反応の場としての生体膜の評価:リポソーム脂質二重膜中のエネルギー移動特性2014

    • Author(s)
      野嶋 優妃,高屋 智久,岩田 耕一
    • Organizer
      第8回分子科学討論会
    • Place of Presentation
      広島県東広島市
    • Year and Date
      2014-09-21
    • Related Report
      2014 Annual Research Report
  • [Presentation] Characterizing molecular assemblies with time-resolved Raman spectroscopy - lipid bilayer membranes, ionic liquids and loose electrons2014

    • Author(s)
      Koichi Iwata
    • Organizer
      24th International Conference on Raman Spectroscopy
    • Place of Presentation
      イエナ市(ドイツ)
    • Year and Date
      2014-08-14
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Chemical environment inside liposome lipid bilayers examined with picosecond time-resolved and tip-enhanced Raman spectroscopie2014

    • Author(s)
      Yuki Nojima, Tomohisa Takaya, Koichi Iwata, Prabha Singh, Lucas Langelueddecke, Volker Deckert
    • Organizer
      24th International Conference on Raman Spectroscopy
    • Place of Presentation
      イエナ市(ドイツ)
    • Year and Date
      2014-08-14
    • Related Report
      2014 Annual Research Report
  • [Presentation] Structure of ionic liquids examined with smaller probes2014

    • Author(s)
      Manping Ye, Setsuka Arii, Takanori Uwabo, Tomohisa Takaya, and Koichi Iwata
    • Organizer
      248th National ACS Meeting
    • Place of Presentation
      サンフランシスコ市(米国)
    • Year and Date
      2014-08-10
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Thermal Diffusivity of Lipid Bilayer Membranes Estimated with Picosecond Time-resolved Raman Spectroscopy2014

    • Author(s)
      Y. Nojima, T. Takaya, K. Iwata
    • Organizer
      3rd Taiwan International Symposium on Raman Spectroscopy
    • Place of Presentation
      日月潭(台湾)
    • Year and Date
      2014-07-01
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Energy transfer in liquid-crystal-phase and gel-phase lipid bilayers formed by six phosphatidylcholines. A picosecond time-resolved Raman study2014

    • Author(s)
      Yuki Nojima, Tomohisa Takaya and Koichi Iwata
    • Organizer
      2014 Korea-Japan Symposium on Frontier Photoscience
    • Place of Presentation
      ソウル市(韓国)
    • Year and Date
      2014-06-23
    • Related Report
      2014 Annual Research Report
  • [Presentation] フェムト秒時間分解近赤外分光法によるEgg-PC脂質二重膜中に封入したビアントリルの光誘起電子移動反応の測定2014

    • Author(s)
      毛利豪,高屋智久,岩田耕一
    • Organizer
      平成26年度日本分光学会年次講演会
    • Place of Presentation
      埼玉県和光市
    • Year and Date
      2014-05-28
    • Related Report
      2014 Annual Research Report
  • [Remarks] 岩田研究室ホームページ

    • URL

      http://www-cc.gakushuin.ac.jp/~20040130/index.htm

    • Related Report
      2015 Annual Research Report 2014 Annual Research Report

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Published: 2014-04-04   Modified: 2018-03-28  

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