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Synthesis and application of spherical colloids with visible rotational motion

Research Project

Project/Area Number 15K17734
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Biological physics/Chemical physics/Soft matter physics
Research InstitutionThe University of Tokyo

Principal Investigator

Yanagishima Taiki  東京大学, 生産技術研究所, 特任研究員 (00716699)

Research Collaborator RUSSO John  ブリストル大学, 数学部, Lecturer
LIU Yanyan  オックスフォード大学, 物理化学部
TANAKA Hajime  東京大学, 生産技術研究所, 教授 (60159019)
DULLENS Roel  オックスフォード大学, 物理化学部, 教授
Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywordsコロイド / 流体 / ダイナミクス / 合成 / 回転 / コロイド合成 / コロイド分散系 / 回転運動
Outline of Final Research Achievements

Colloidal systems consist of microscopic particles tens of nanometers to microns in size, suspended in a liquid medium. Optical microscopy can be used to locate single particles and directly observe structural change. However, when the particles are spherical, it is not possible to observe the rotational motion of single particles, despite rotation being a sensitive degree of freedom to fluid flow in dense suspensions. The aim of this project was to synthesise spherical particles with an anisotropic fluorescence. The original plan was to use a plastic material, but this did not prove successful. Instead, a silane coupling agent was used to create a particle with a small core of the same material but different color embedded just below the particle surface. We thus realised colloidal particles whose rotational Brownian motion was easily visible using confocal microscopy, even in dense systems. These particles also hold promise as a probe for shear flow at the micron scale.

Report

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

    (8 results)

All 2017 2016 2015 Other

All Int'l Joint Research (1 results) Presentation (7 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Int'l Joint Research] オックスフォード大学/ブリストル大学(英国)

    • Related Report
      2016 Annual Research Report
  • [Presentation] Common mechanism of thermodynamic and mechanical origin for ageing and crystallisation of glasses2017

    • Author(s)
      柳島大輝, John Russo, 田中肇
    • Organizer
      Liquid Matter Conference 2017
    • Place of Presentation
      リュブリャナ(スロベニア)
    • Year and Date
      2017-07-17
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] “OCULI” particles for observing single-particle rotation in confocal microscopy studies of colloidal systems2017

    • Author(s)
      柳島大輝, Yanyan Liu, Roel Dullens, 田中肇
    • Organizer
      Oxford Centre for Soft and Biological Matter Away Day
    • Place of Presentation
      オックスフォード(イギリス)
    • Related Report
      2016 Annual Research Report
  • [Presentation] “OCULI” particles for observing single-particle rotation in confocal microscopy studies of colloidal systems2017

    • Author(s)
      柳島大輝, Yanyan Liu, Roel Dullens, 田中肇
    • Organizer
      Rideal Symposium
    • Place of Presentation
      ケンブリッジ(イギリス)
    • Related Report
      2016 Annual Research Report
  • [Presentation] Common mechanism of thermodynamic and mechanical origin for ageing and crystallisation of glasses2017

    • Author(s)
      柳島大輝, John Russo, 田中肇
    • Organizer
      Seminar
    • Place of Presentation
      リヨン(フランス)
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] The role of bond-orientational order in the structural evolution of deeply supercooled hard-sphere glasses2016

    • Author(s)
      柳島大輝、田中肇
    • Organizer
      23rd International Symposium on Metastable, Amorphous and Nanostructured Materials, ISMANAM 2016
    • Place of Presentation
      奈良春日野国際フォーラム(奈良市、奈良県)
    • Year and Date
      2016-07-03
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] 体積分率可変セルで探る荷電・剛体球コロイド分散系の相図2016

    • Author(s)
      柳島大輝、田中肇
    • Organizer
      日本物理学会第71回年次大会
    • Place of Presentation
      東北学院大学(仙台市、宮城県)
    • Year and Date
      2016-03-19
    • Related Report
      2015 Research-status Report
  • [Presentation] Structural origins for 'avalanche' crystallisation in hard sphere glasses2015

    • Author(s)
      柳島大輝、田中肇
    • Organizer
      CECAM Workshop: The role of local structure in dynamical arrest
    • Place of Presentation
      Mainz (Germany)
    • Year and Date
      2015-07-21
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research

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Published: 2015-04-16   Modified: 2022-02-16  

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