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Universality in the dynamic heterogeneities and pseudo isotropic phases

Research Project

Project/Area Number 20H01869
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 13040:Biophysics, chemical physics and soft matter physics-related
Research InstitutionKyoto University

Principal Investigator

Yamamoto Jun  京都大学, 理学研究科, 教授 (10200809)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2022: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2021: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2020: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
Keywordsfluctuation / Dynamic heterogenety / Quasi isotropic / Glass / Gel / 揺らぎ / 動的不均一性 / 揺らぎ顕微鏡 / 準等方相 / 擬等方性 / 準等方性 / ダイナミクス / 準等方 / 擬臨界
Outline of Research at the Start

「準」等方相と総称した物質群は、液体と同じ高い対称性を有しながら特徴的な動的内部構造を持つ物質である。本構想では以下の3つを基礎モデルとする。(1)ガラス・ゲルに代表される物質。(2)フラストレート液晶。(3)Phantasmagoric液晶。これらの「準」等方相では、「動的不均一性」に由来する高速な物性を有し、「擬臨界性」に基づいた安定で大きな応答性を併せ持つ。本構想では、「揺らぎ顕微鏡」を主力研究機器として、動的不均一性の構造の直接観察と、さらに外場下での動的構造変化の観測をもとに準等方相の優れた高速・高応答性のメカニズムの理解とその改良を研究する。

Outline of Final Research Achievements

In the glassy or gel state, materials have perfect isotropic symmetry, are transparent, and do not have an internal structure like liquid crystals or crystalline materials. For this reason, it is not possible to investigate their internal structure by ordinary optical microscopic observation. On the other hand, in glass-forming materials, it is known that during the process of cooling from a high-temperature liquid state, some parts of the material become more mobile while others become less mobile. On the other hand, in gels, the polymer network is bound near the cross-linking point, which reduces mobility and makes it difficult for solvent molecules to move. Thus, even if physical quantities such as density, concentration, and orientation are uniform within a material, spatial heterogeneity in mobility may appear, which is called "dynamic heterogeneity.

Academic Significance and Societal Importance of the Research Achievements

揺らぎ顕微鏡は、現存する光学顕微鏡では捉えられない物理量を可視化する新しいツールである。そこで、粘弾性その場観察装置を活かして、印加力学場による動的階層構造変化との関連性を観察・整理して、基礎科学的な視点からの材料の力学物性の設計・開発に役立てるとともに、最終的には力学物性に相関がある病理検査や医療応用、また製品開発や不良品検査が可能な、汎用顕微鏡としてのポータビリティ・簡易操作を可能とする開発にも研究期間の後半にチャレンジする。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (37 results)

All 2023 2022 2021 2020 Other

All Journal Article (5 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (31 results) (of which Int'l Joint Research: 13 results,  Invited: 8 results) Remarks (1 results)

  • [Journal Article] Photo-induced recovery of liquid-crystalline order with azobenzene-containing copolymer in nematic liquid crystal2021

    • Author(s)
      Chiao-Ying Chien and Jun Yamamoto
    • Journal Title

      Euro. Phys. Lett.

      Volume: 133 Issue: 2 Pages: 26001-26001

    • DOI

      10.1209/0295-5075/133/26001

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Light-driven modulation of scalar order parameter for high spatial resolution2020

    • Author(s)
      Chiao-Ying Chien and Jun Yamamoto
    • Journal Title

      Euro. Phys. Lett.

      Volume: 131 Issue: 2 Pages: 26001-26001

    • DOI

      10.1209/0295-5075/131/26001

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Structural transformation in tetravalent nematic shells induced by a magnetic field2020

    • Author(s)
      Yoko Ishii, Ye Zhou, Kunyun He, Yoichi Takanishi, Jun Yamamoto, Juan de Pablo and Teresa Lopez-Leon
    • Journal Title

      Soft Matter

      Volume: 16 Issue: 35 Pages: 8169-8178

    • DOI

      10.1039/d0sm00340a

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Microscopic molecular translational dynamics in cholesteric and cholesteric blue phases2020

    • Author(s)
      Makina Saito, Jun Yamamoto, Ryo Masuda, Masayuki Kurokuzu, Yoshitaka Yoda, Makoto Seto
    • Journal Title

      Hyperfine Interact.

      Volume: 241 Issue: 1 Pages: 241-241

    • DOI

      10.1007/s10751-019-1670-z

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dynamics control of an in-plane-switching liquid crystal cell using heterogeneous substrates2020

    • Author(s)
      Lee Kuang-Wu、Araki Takeaki、Yamamoto Jun
    • Journal Title

      Soft Matter

      Volume: 16 Issue: 2 Pages: 348-356

    • DOI

      10.1039/c9sm01742a

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Imaging dynamic heterogeneity of soft matter by fluctuation microcopy2023

    • Author(s)
      Jun Yamamoto
    • Organizer
      SPIE Opto
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Direct observation of the dynamic heterogeneity in soft matter by fluctuation microscope2022

    • Author(s)
      Jun Yamamoto
    • Organizer
      SPIE Optics + Photonics
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Direct imaging of dynamic heterogeneity observed by the novel fluctuation microscopy2022

    • Author(s)
      Jun Yamamoto
    • Organizer
      Optics of Liquid Crystals Satellite Workshop 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Direct observation of critical fluctuation and dynamic heterogeneity in phantasmagoric liquid crystals2022

    • Author(s)
      Jun Yamamoto
    • Organizer
      International Liquid Crystal Conference 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Dynamic coupling of Brownian Motion of Colloidal particles and Topological Dynamics of Sponge in Mixture2022

    • Author(s)
      Shingo Yoshioka and Jun Yamamoto
    • Organizer
      Optics of Liquid Crystals Satellite Workshop 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Formation of self-assembled stripe domains in liquid crystal gels by external force2022

    • Author(s)
      Akinori Oooka and Jun Yamamoto
    • Organizer
      Optics of Liquid Crystals Satellite Workshop 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 動的不均一性を直接可視化する新奇な揺らぎ顕微鏡2022

    • Author(s)
      山本 潤
    • Organizer
      日本液晶学会講演会 2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] コロイド粒子とスポンジ相のトポロジカルな揺らぎの動的結合2022

    • Author(s)
      吉岡真吾、山本 潤
    • Organizer
      日本液晶学会講演会 2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] 液晶ゲルにおける自己組織的ストライプドメイン構造2022

    • Author(s)
      大岡明徳、山本 潤
    • Organizer
      日本液晶学会講演会 2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] cis体アゾ分子の励起寿命に着目した配向秩序変数変化と分子マニピュレータの高解像度化2022

    • Author(s)
      川西永起、山本 潤
    • Organizer
      日本液晶学会講演会 2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] 階層的時空構造と動的不均一性から紡ぐナノ力学機構の理解と制御2022

    • Author(s)
      山本 潤
    • Organizer
      第1回ミニナノ力学研究会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] ネマティックゲルにおけるストライプの構造と運動性2022

    • Author(s)
      大岡明徳、山本 潤
    • Organizer
      第1回ミニナノ力学研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 膜の波うち揺らぎとコロイド粒子のブラウン運動間の動的結合と動的不均一2022

    • Author(s)
      吉岡真吾、山本 潤
    • Organizer
      第1回ミニナノ力学研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Dynamics of flow-induced birefringence in phantasmagoric liquid crystals2021

    • Author(s)
      Jun Yamamoto, Nozomu Takahashi and Giusy Scalia
    • Organizer
      SPIE Optics and Photonics
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Flow induced deformation and orientation of micelles in phantasmagoric nematic liquid crystals near continuous I-N phase transition2021

    • Author(s)
      Jun Yamamoto
    • Organizer
      Optics of Liquid Crystal 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Dynamic coupling of gel network and nematic orientation order2021

    • Author(s)
      Ooka Akinori, Jun Yamamoto
    • Organizer
      Optics of Liquid Crystal 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Dynamic Coupling in Surfactant Lamellae and Colloidal Particle Mixtures2021

    • Author(s)
      Shingo Yoshioka, Jun Yamamoto
    • Organizer
      Optics of Liquid Crystal 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 液晶・光・色2021

    • Author(s)
      山本 潤
    • Organizer
      OLC2021市民講座
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Hydrodynamics of Phantasmagoric Liquid Crystals2021

    • Author(s)
      Jun Yamamoto
    • Organizer
      MRM2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Pseudo critical phenomena in phantasmagoric liquid crystals2021

    • Author(s)
      Jun Yamamoto
    • Organizer
      Pacifichem 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 光制御slippery界面2021

    • Author(s)
      吉中智弘, 山本 潤
    • Organizer
      2021年日本液晶学会討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ネマチック配向ゆらぎに及ぼすゲルネットワークの効果2021

    • Author(s)
      大岡明徳、山本 潤
    • Organizer
      2021年日本液晶学会討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] シランカップリングPEGが形成するslippery界面2021

    • Author(s)
      金澤和律、山本 潤
    • Organizer
      2021年日本液晶学会討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] コロイド粒子複合ラメラ相におけるブラウン運動と波打ち揺らぎの動的 結合2021

    • Author(s)
      吉岡真吾、柳島大輝、山本 潤
    • Organizer
      2021年日本液晶学会討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 戻り光同時照射による分子マニピュレータの高解像度化2021

    • Author(s)
      川西永起、山本 潤
    • Organizer
      2021年日本液晶学会討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Slippery Interface -Mechanism and Physical Properties-2020

    • Author(s)
      Jun Yamamoto, Hirotsugu Kikuchi, Takeaki Araki, Isa-Nishiyama and Kiyoshi Minoura
    • Organizer
      IDW 20
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] リアルタイム分散関係DLS測定法の試作とI-N二次相転移の臨界現象2020

    • Author(s)
      岡田 知治, 山本 潤
    • Organizer
      日本液晶学会オンライン講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] アニオン・カチオン混合リオトロピックネマティック液晶における流動誘起複屈折2020

    • Author(s)
      高橋 希, 山本 潤
    • Organizer
      日本液晶学会オンライン講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 揺らぎ顕微鏡の改良2020

    • Author(s)
      大岡 明徳, 山本 潤
    • Organizer
      日本液晶学会オンライン講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 光制御可能なSlippery界面の作製と磁場によるアンカリング測定2020

    • Author(s)
      吉中 智弘, 山本 潤
    • Organizer
      日本液晶学会オンライン講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] コロイド粒子とラメラ相との動的カップリング2020

    • Author(s)
      吉岡 真吾, 山本 潤
    • Organizer
      日本液晶学会オンライン講演会
    • Related Report
      2020 Annual Research Report
  • [Remarks] 京都大学大学院理学研究科 物理学・宇宙物理学専攻 ソフトマター物理学研究室

    • URL

      https://softmatter.scphys.kyoto-u.ac.jp/

    • Related Report
      2020 Annual Research Report

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Published: 2020-04-28   Modified: 2024-01-30  

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