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Oscillatory Motion of Collective Self-Propelled Particles

Research Project

Project/Area Number 16K05486
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Mathematical physics/Fundamental condensed matter physics
Research InstitutionMeiji University

Principal Investigator

Suematsu Nobuhiko  明治大学, 総合数理学部, 専任准教授 (80542274)

Co-Investigator(Kenkyū-buntansha) 西森 拓  広島大学, 統合生命科学研究科, 教授 (50237749)
池田 幸太  明治大学, 総合数理学部, 専任准教授 (50553369)
参納 弓彦  明治大学, 総合数理学部, 特任講師 (60612554)
Research Collaborator Nakata Satoshi  
Matsuda Yui  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords界面化学 / 非線形科学 / 自己駆動 / 分岐理論 / 自己駆動粒子 / 分岐現象 / 振動 / アクティブマター / コロイド界面化学 / 力学系 / 自己組織化 / 集団運動 / リズム現象 / 数理モデル / 非平衡・非線形物理学 / パターン形成現象 / 自己組織化現象
Outline of Final Research Achievements

Self-propelled particles is the object what spontaneously moves using chemical energy. A camphor disk is one of the self-propelled particle that slides on water. We previously observed mode bifurcation of camphor motion with change in the number of disks. However, its mechanism is under investigation. In this project, we approached this problem from both experimentally and mathematically. For simplify the system, the number of disk was fixed, and the area of water surface was sequentially varied. As the results, similar mode bifurcation was observed, i.e., continuous motion in large area, oscillatory motion in middle area, and stationary state in small area. This mode bifurcation for a single disk was successfully reproduced using mathematical model that was obtained with modified the typical model for camphor motion. Our mathematical approach indicated that oscillatory motion is appeared by instability of continuous motion.

Academic Significance and Societal Importance of the Research Achievements

自己駆動粒子は、人間による遠隔操作や細かな命令系統を必要としないシンプルな運動システムである。そのような自己駆動粒子の運動モードの多様化は、生命に見られる自律性の起源に迫る学理的な意義や、ソフトロボットのような工学的な応用など、幅広い分野に影響を与える基礎的な研究である。今回、同じ機能を持つ運動素子(しょうのう粒)の数密度が変わるだけで、個々の運動モードが変化するという現象の機構を解明した。これは、周辺の環境と運動素子との相互作用により生まれるモード変化であり、微生物に見られるクオラムセンシングの機構にも良く似ている現象であることが分かった。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (13 results)

All 2019 2018 2017 2016 Other

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results) Presentation (9 results) (of which Invited: 2 results) Book (1 results) Remarks (1 results)

  • [Journal Article] Self-Propelled Motion of a Coumarin Disk Characteristically Changed in Couple with Hydrolysis on an Aqueous Phase2019

    • Author(s)
      Nakata Satoshi、Irie Yasutaka、Suematsu Nobuhiko J.
    • Journal Title

      The Journal of Physical Chemistry B

      Volume: 123 Issue: 19 Pages: 4311-4317

    • DOI

      10.1021/acs.jpcb.8b11534

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Rotational motion of a camphor disk in a circular region2019

    • Author(s)
      Koyano Yuki、Suematsu Nobuhiko J.、Kitahata Hiroyuki
    • Journal Title

      Physical Review E

      Volume: 99 Issue: 2 Pages: 022211-022211

    • DOI

      10.1103/physreve.99.022211

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] Self-Propelled Objects from Viewpoint of Nonlinear Science2018

    • Author(s)
      Nobuhiko J. Suematsu
    • Organizer
      Active Matter
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] しょうのう粒の集団に現れる振動現象のメカニズム解明2018

    • Author(s)
      末松 J. 信彦
    • Organizer
      西日本非線形研究会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 場を介して相互作用する自己駆動粒子の集団振動運動2018

    • Author(s)
      末松 J. 信彦
    • Organizer
      札幌非線形研究会2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] 数密度の増加に誘起されるしょうのう粒の振動運動2018

    • Author(s)
      末松 J. 信彦、松田 唯、井倉 S. 弓彦、池田 幸太
    • Organizer
      日本物理学会 秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Self-Propelled Objects from Viewpoint of Nonlinear Science2018

    • Author(s)
      Nobuhiko J. Suematsu
    • Organizer
      Active Matter 2018
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Oscillatory motion of camphor particles generated by coupling with surface concentration2018

    • Author(s)
      Matsuda Yui, Ikura S. Yumihiko, Ikeda Kota, Suematsu J. Nobuhiko
    • Organizer
      日本化学会春季年会
    • Related Report
      2017 Research-status Report
  • [Presentation] 場の大きさに依存した樟脳粒の振動運動2017

    • Author(s)
      末松 J. 信彦
    • Organizer
      自己組織化討論会
    • Related Report
      2017 Research-status Report
  • [Presentation] 自己駆動粒子で再現する Brownian Chemotaxis2017

    • Author(s)
      末松 J. 信彦
    • Organizer
      札幌非線形研究会2017
    • Related Report
      2017 Research-status Report
  • [Presentation] 自己駆動粒子の集団に現れる運動モード転移2016

    • Author(s)
      末松 J. 信彦, 中田聡, 西森拓
    • Organizer
      日本物理学会 秋季大会
    • Place of Presentation
      金沢大学
    • Year and Date
      2016-09-13
    • Related Report
      2016 Research-status Report
  • [Book] Self-organized Motion : Physicochemical Design based on Nonlinear Dynamics2018

    • Author(s)
      Nobuhiko J. Suematsu
    • Total Pages
      22
    • Publisher
      Royal Society of Chemistry
    • Related Report
      2018 Annual Research Report
  • [Remarks] Publication of NJSuematsu

    • URL

      http://www.isc.meiji.ac.jp/~suematsu/publication.html

    • Related Report
      2017 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

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