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Study on the anisotropic structure formed by nematic colloidal molecules

Research Project

Project/Area Number 15K13551
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Biological physics/Chemical physics/Soft matter physics
Research InstitutionKyushu University

Principal Investigator

Kimura Yasuyuki  九州大学, 理学研究院, 教授 (00225070)

Co-Investigator(Renkei-kenkyūsha) IWASHITA Yasutaka  九州大学, 大学院理学研究院, 助教 (50552494)
ARAKI Takeaki  京都大学, 大学院理学研究科, 准教授 (20332596)
Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsコロイド分子 / ネマチック液晶 / 光ピンセット / コロイド構造体 / 電場応答 / 液晶 / コレステリック液晶 / 光駆動回転
Outline of Final Research Achievements

In recent years, it has been reported that a new structure different from conventional ones is formed in a multi-patch colloidal particle system having multiple surface regions with different properties. In this study, we focus on the fact that the interaction between spherical colloidal particles dispersed in nematic liquid crystals is dipolar and we have tried to fabricate 2D / 3D structures composed of these nematic colloids.
We succeeded in creating new types of structures such as a regular polygonal structure of antiparallel particles, a two-dimensional structure of regular octagonal structures (Archimedes lattice), a perforated tetragonal lattice structure of square structures, a Kagome-like lattice of tetrahedrons. We also found that one-dimensional size of these structures can reversibly shrinks by up to 20% in less than 1 second under AC electric field of several volts.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • Research Products

    (14 results)

All 2017 2016 2015 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Acknowledgement Compliant: 2 results) Presentation (10 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results) Remarks (2 results)

  • [Journal Article] Two-dimensional assemblies of nematic colloids in homeotropic cells and their response to electric fields2016

    • Author(s)
      Yuta Tamura and Yasuyuki Kimura
    • Journal Title

      Soft Matter

      Volume: 12 Issue: 32 Pages: 6817-6826

    • DOI

      10.1039/c6sm00929h

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Fabrication of ring assemblies of nematic colloids and their eletric response2016

    • Author(s)
      Yuta Tamura and Yasuyuki Kimura
    • Journal Title

      Applied Physics Letters

      Volume: 108 Issue: 1

    • DOI

      10.1063/1.4939627

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Continuous rotation of a cholesteric liquid crystalline droplet by a circularly polarized optical tweezers2017

    • Author(s)
      Y. Tamura and Y. Kimura
    • Organizer
      OMC17
    • Place of Presentation
      パシフィコ横浜
    • Year and Date
      2017-04-19
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ネマチックコロイドを用いた異方的構造体作製2016

    • Author(s)
      田村優太、木村康之
    • Organizer
      第6回ソフトマター研究会
    • Place of Presentation
      北海道大学
    • Year and Date
      2016-10-24
    • Related Report
      2016 Annual Research Report
  • [Presentation] ネマチック液晶中での異方的構造体作製とその電場応答2016

    • Author(s)
      田村優太、木村康之
    • Organizer
      第67回コロイドおよび界面化学討論会
    • Place of Presentation
      北海道教育大学旭川校
    • Year and Date
      2016-09-22
    • Related Report
      2016 Annual Research Report
  • [Presentation] Fabrication of anisotropic colloidal assemblies2016

    • Author(s)
      Y. Tamura and Y. Kimura
    • Organizer
      第8回日伊液晶会議
    • Place of Presentation
      京都市国際交流会館
    • Year and Date
      2016-07-05
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 液晶液滴の回転運動2016

    • Author(s)
      田村優太、木村康之
    • Organizer
      第122回日本物理学会九州支部例会
    • Place of Presentation
      福岡大学
    • Related Report
      2016 Annual Research Report
  • [Presentation] ネマチックコロイドを用いた異方的構造体とその電場応答2015

    • Author(s)
      田村 優太
    • Organizer
      第5回ソフトマター研究会
    • Place of Presentation
      東北大学、仙台市
    • Year and Date
      2015-12-17
    • Related Report
      2015 Research-status Report
  • [Presentation] エキゾチックな粒子間相互作用によるコロイド構造体の形成2015

    • Author(s)
      木村康之
    • Organizer
      第5回ソフトマター研究会
    • Place of Presentation
      東北大学、仙台市
    • Year and Date
      2015-12-17
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] ネマチックコロイドを用いた異方的構造体2015

    • Author(s)
      田村 優太
    • Organizer
      第121回日本物理学会九州支部例会
    • Place of Presentation
      九州工業大学、北九州市
    • Year and Date
      2015-12-05
    • Related Report
      2015 Research-status Report
  • [Presentation] ネマチックコロイドが形成する異方的構造体2015

    • Author(s)
      木村康之
    • Organizer
      第66回コロイドおよび界面化学討論会
    • Place of Presentation
      鹿児島大学、鹿児島市
    • Year and Date
      2015-09-10
    • Related Report
      2015 Research-status Report
  • [Presentation] Two-dimensional non-close-packed nematic colloidal assemblies and their2015

    • Author(s)
      田村 優太
    • Organizer
      13th European Conference on Liquid Crystal
    • Place of Presentation
      The University of Manchester, UK
    • Year and Date
      2015-09-07
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Remarks] 九州大学理学研究院物理学部門複雑物性基礎研究室ホームページ

    • URL

      http://sm.kyushu-u.ac.jp/~kimuralab/

    • Related Report
      2016 Annual Research Report
  • [Remarks] 木村研ホームページ/研究業績

    • URL

      http://sm.kyushu-u.ac.jp/~kimuralab/

    • Related Report
      2015 Research-status Report

URL: 

Published: 2015-04-16   Modified: 2018-03-22  

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