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hierarchical aggregation of supramolecular architecture of diarylethene by depletion force and its photoinduced movement

Research Project

Project/Area Number 19K05400
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 32020:Functional solid state chemistry-related
Research InstitutionKyoto University

Principal Investigator

Higashiguchi Kenji  京都大学, 工学研究科, 講師 (90376583)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords超分子構造体 / 光反応 / ジアリールエテン / 枯渇力 / 両親媒性
Outline of Research at the Start

両親媒性化合物が水中で形成する超分子構造体は、多くの場合光学顕微鏡サイズ(数マイクロメートル)でしか得られないが、枯渇力を作用させると棒状ミセルは束状に、二分子膜は積層凝集してサイズが大きくなる。我々は光応答性超分子構造体においても、枯渇力での凝集の際に分子間のパッキングが変化しないこと、すなわち光応答性を変性させないことを確認した。本研究ではmmサイズの超分子構造体を光発生・消失・変形させるシステムを構築する。光反応は位置選択性や物体透過性の点で優れており、例えばマイクロカプセルの内部ひいては細胞のような閉じた空間でも光操作可能な超分子構造体を構築できる。

Outline of Final Research Achievements

Diarylethene supramolecular assembly shows shape change upon irradiation with UV and visible lights. The assembly is usually several micrometers in size, making it difficult to use as an actuator. Therefore, we applied a depletion force capable of coagulation for colloidal particles. In this study, we achieved enlargement of the diarylethene supramolecular structure to submillimeter size by depletion force while keeping its shape change property. Generally, nanometer-sized assemblies in planar shape curled up due to surface energy in water, but this problem was solved by anisotropic coagulation-like stacking under depletion force. We additionally found that depletion force did not affect the intermolecular stacking of the amphiphilic molecules, which was judged from the same absorption maximum.

Academic Significance and Societal Importance of the Research Achievements

結晶も会合体も、物体を動かせるほどのサイズに成長させるには一般に時間が掛かる。枯渇力による異方的凝集は、ピペット先端による撹拌により10秒掛からずに達成され、それでいて元の刺激応答変形性は残している。刺激応答性会合体の大きさを成長させることは、応用を考えた場合、変形量や力の最大値、繰り返し耐久性のいずれにおいても有利であると考えられる。枯渇力による表週は本系に限らず普遍的に適用可能であることから、応用の観点から特に優れていると考えられる。学術的にも、枯渇力によるコロイドの凝集が両親媒性化合物のパッキングに影響を与えないことを、外形からだけでなくスペクトルの不変性から確認した点で意義がある。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (15 results)

All 2023 2022 2021 2020 2019

All Journal Article (7 results) (of which Peer Reviewed: 7 results) Presentation (5 results) (of which Invited: 2 results) Book (2 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Sheet-Like Supramolecular Assembly of Amphiphilic Diarylethene Showing Photoinduced Transformation Formed by Depletion Force2021

    • Author(s)
      H. Yasuda, K. Higashiguchi*, K. Matsuda*
    • Journal Title

      Chem. Lett.

      Volume: 50 Issue: 11 Pages: 1875-1878

    • DOI

      10.1246/cl.210452

    • NAID

      130008113725

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Re‐entrant Photoinduced Morphological Transformation and Temperature‐Dependent Kinetic Products of a Rectangular Amphiphilic Diarylethene Assembly2021

    • Author(s)
      Kotani Yasunobu、Yasuda Haruka、Higashiguchi Kenji、Matsuda Kenji
    • Journal Title

      Chemistry - A European Journal

      Volume: 27 Issue: 43 Pages: 11158-11166

    • DOI

      10.1002/chem.202101127

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Origin of aggregation-induced enhanced emission: role of pseudo-degenerate electronic states of excimers formed in aggregation phases2020

    • Author(s)
      Ota, K. Takahashi, K. Higashiguchi, K. Matsuda, T. Sato
    • Journal Title

      J. Mater. Chem. C

      Volume: 8 Issue: 24 Pages: 8036-8046

    • DOI

      10.1039/c9tc07067b

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] A diarylethene annulated isomer as a highly-conductive molecular wire evaluated by the exchange interaction between two nitroxides2020

    • Author(s)
      Sumiya Youki、Higashiguchi Kenji、Matsuda Kenji
    • Journal Title

      Chemical Communications

      Volume: 56 Issue: 16 Pages: 2447-2450

    • DOI

      10.1039/c9cc10017b

    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Photochromism for optically functionalized organic field-effect transistors: a comprehensive review2020

    • Author(s)
      Y. Wakayama, R. Hayakawa, K. Higashiguchi, K. Matsuda
    • Journal Title

      J. Mater. Chem. C

      Volume: 8 Issue: 32 Pages: 10956-10974

    • DOI

      10.1039/d0tc02683b

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Photoinduced Repetitive Separation of the Supramolecular Assembly composed of Amphiphilic Diarylethene Mixture2019

    • Author(s)
      S. Sakakibara, H. Yotsuji, K. Higashiguchi*, K. Matsuda*
    • Journal Title

      Soft Matter

      Volume: 15 Issue: 39 Pages: 7918-7925

    • DOI

      10.1039/c9sm01301f

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Inorganic-Organic Hybrid Photomechanical Crystals Consisting of Diarylethenes and Cage Siloxanes2019

    • Author(s)
      R. Kajiya, S. Sakakibara, H. Ikawa, K. Higashiguchi*, K. Matsuda, H. Wada, K. Kuroda, A. Shimojima*
    • Journal Title

      Chem. Mater.

      Volume: 31 Issue: 22 Pages: 9372-9378

    • DOI

      10.1021/acs.chemmater.9b02941

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 二箇所にビニル基を有する両親媒性ジアリールエテンの架橋型超分子構造体の形態解析2023

    • Author(s)
      吉川陽大・並河篤・東口顕士・松田建児
    • Organizer
      日本化学会第103春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 平板四角形型の両親媒性ジアリールエテンが 形成する温度依存型の速度論的会合体2021

    • Author(s)
      東口顕士・小谷泰暢・安田春香・松田建児
    • Organizer
      光化学討論会
    • Related Report
      2021 Research-status Report
  • [Presentation] Phototransformative Supramolecular Assembly of Amphiphilic Diarylethenes2020

    • Author(s)
      Kenji Higashiguchi
    • Organizer
      PPSM seminar, ENS Paris-Saclay
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 光異性化分子の集合形態変化を用いた発動分子システム2019

    • Author(s)
      東口顕士・松田建児
    • Organizer
      第68回高分子討論会
    • Related Report
      2019 Research-status Report
  • [Presentation] ジアリールエテン超分子構造体の光誘起形態変化と光駆動運動2019

    • Author(s)
      東口顕士
    • Organizer
      第40回光化学若手の会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Book] 現代化学「フォトクロミック分子を用いた発動分子システム」2021

    • Author(s)
      松田建児・東口顕士
    • Total Pages
      4
    • Publisher
      東京化学同人
    • Related Report
      2020 Research-status Report
  • [Book] "Photoinduced Morphological Transformation and Photodriven Movement of Objects Using Self-assembly of Amphiphilic Diarylethene in Water" in "Photosynergetic Responses in Molecules and Molecular Aggregates"2020

    • Author(s)
      K. Higashiguchi, K. Matsuda
    • Total Pages
      22
    • Publisher
      Springer, Singapore
    • Related Report
      2020 Research-status Report
  • [Patent(Industrial Property Rights)] 有機トランジスタとその動作制御方法および動作制御装置2022

    • Inventor(s)
      若山裕、鶴岡徹、早川竜馬、松田建児、東口顕士
    • Industrial Property Rights Holder
      若山裕、鶴岡徹、早川竜馬、松田建児、東口顕士
    • Industrial Property Rights Type
      特許
    • Filing Date
      2022
    • Acquisition Date
      2022
    • Related Report
      2021 Research-status Report

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Published: 2019-04-18   Modified: 2024-01-30  

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