Hydrodynamics of a cell as a nonequilibrium soft material

2013 Fiscal Year Final Research Report

• Project/Area Number: 23740317
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Biophysics/Chemical physics
• Research Institution: Tohoku University
• Principal Investigator: YOSHINAGA Natsuhiko 東北大学, 原子分子材料科学高等研究機構, 助教 (90548835)
• Project Period (FY): 2011 – 2013
• Keywords: ソフトマターの物理

Research Abstract

We have developed the statistical mechanics of active soft condensed materials, particularly biological and biologically-inspired systems. The aim of the study is to understand the mechanism of self-propulsion focusing on its mechanical aspects. We have theoretically revealed spontaneous motion and deformation driven by chemical reaction and also motion associated with internal nonlinear waves. We are also interested in the internal mechanics of a cell and have investigated dynamics of cytoskelton contracting due to the active stress under a nonequilibrium state.

Research Products

• [Journal Article] Spontaneous motion and deformation of a self-propelled droplets (2014)
  • Author(s): Natsuhiko Yoshinaga
  • Journal Title: Physical Review E Volume: 89 Pages: 012913
  • DOI: 10.1103/PhysRevE.89.012913
  • Peer Reviewed
• [Journal Article] Rotational motion of a droplet induced by interfacial tension (2013)
  • Author(s): Ken H. Nagai, Fumi Takabatake, Yutaka Sumino, Hiroyuki Kitahata, Masatoshi Ichikawa, and Natsuhiko Yoshinaga
  • Journal Title: Physical Review E Volume: 87 Pages: 013009
  • DOI: 10.1103/PhysRevE.87.013009
  • Peer Reviewed
• [Journal Article] Spontaneous Motion of a Belousov-Zhabotinsky Reaction Droplet Coupled with a Spiral Wave (2012)
  • Author(s): Hiroyuki Kitahata, Natsuhiko Yoshinaga, Ken H. Nagai, and Yutaka Sumino
  • Journal Title: Chemistry Letters Volume: 41 Pages: 1052-1054
  • DOI: 10.1246/cl.2012.1052
  • Peer Reviewed
• [Journal Article] Contraction of cross-linked actomyosin bundles (2012)
  • Author(s): Natsuhiko Yoshinaga and Philippe Marcq
  • Journal Title: Physical Biology Volume: 9 Pages: 046004
  • DOI: 10.1088/1478-3975/9/4/046004
  • Peer Reviewed
• [Journal Article] Drift instability in the motion of a fluid droplet with a chemically reactive surface driven by Marangoni flow (2012)
  • Author(s): Natsuhiko Yoshinaga, Ken H. Nagai, Yutaka Sumino, and Hiroyuki Kitahata
  • Journal Title: Physical Review E Volume: 86 Pages: 016108
  • DOI: 10.1103/PhysRevE.86.016108
  • Peer Reviewed
• [Journal Article] パターン形成と結合した液滴の自発運動 (2012)
  • Author(s): 北畑裕之, 義永那津人, 永井健, 住野豊
  • Journal Title: 日本物理学会誌 Volume: 67(6) Pages: 385-389
  • URL: http://ci.nii.ac.jp/naid/110009457388
• [Journal Article] 「表面」によって駆動されるコロイド粒子の自発的運動 (2012)
  • Author(s): 義永那津人
  • Journal Title: 分子シュミレーション研究会会誌アンサンブル Volume: 13(2) Pages: 71-76
  • DOI: 10.11436/mssj.13.71
• [Journal Article] Self-propelled motion of a fluid droplet under chemical reaction (2012)
  • Author(s): Shunsuke Yabunaka, Takao Ohta, and Natsuhiko Yoshinaga
  • Journal Title: Journal of Chemical Physics Volume: 136 Pages: 074904
  • DOI: 10.1063/1.3685805
  • Peer Reviewed
• [Journal Article] Rigidity sensing explained by active matter theory (2011)
  • Author(s): Philippe Marcq, Natsuhiko Yoshinaga, and Jacques Prost
  • Journal Title: Biophysical Journal Volume: 101 Pages: L33-L35
  • DOI: 10.1016/j.bpj.2011.08.023
  • Peer Reviewed
• [Journal Article] Spontaneous motion of a droplet coupled with a chemical wave (2011)
  • Author(s): Hiroyuki Kitahata, Natsuhiko Yoshinaga, Ken H. Nagai, and Yutaka Sumino
  • Journal Title: Physical Review E Rapid Communication Volume: 84 Pages: 015101(R)
  • DOI: 10.1103/PhysRevE.84.015101
  • Peer Reviewed
• [Presentation] 自発的に運動する液滴の形と相互作用 (2014)
  • Author(s): 義永那津人
  • Organizer: 日本物理学会第69回年次大会
  • Place of Presentation: 東海大学
  • Year and Date: 2014-03-28
• [Presentation] Spontaneous motion and deformation of a self-propelled droplet (2014)
  • Author(s): Natsuhiko Yoshinaga
  • Organizer: Active Matter : Cytoskeleton, Cells, Tissues and Flocks
  • Place of Presentation: アメリカ・カブリ理論物理学研究所
  • Year and Date: 2014-03-13
• [Presentation] Spontaneous motion and deformation of a droplet driven by chemical reaction (2014)
  • Author(s): Natsuhiko Yoshinaga
  • Organizer: APS March Meeting 2014
  • Place of Presentation: アメリカ・コロラドコンベンションセンター
  • Year and Date: 2014-03-04
• [Presentation] Dynamics of shape in nonequilibrium soft materials (2014)
  • Author(s): Natsuhiko Yoshinaga
  • Organizer: The AIMR International Symposium 2014
  • Place of Presentation: 仙台国際センター
  • Year and Date: 2014-02-19
• [Presentation] Dynamics of shape in nonequilibrium soft materials (2014)
  • Author(s): Natsuhiko Yoshinaga
  • Organizer: Cooperation of Computational Materials Science and Mathematics toward Smart Materials Design II ― What Materials Informatics brings in? ―
  • Place of Presentation: 東北大学
  • Year and Date: 2014-01-09
• [Presentation] Physical picture of a continuum model for crack propagation (2013)
  • Author(s): 義永那津人
  • Organizer: 日本応用数理学会研究部会「連続体力学の数理」第13回ワークショップ CoMFoS13
  • Place of Presentation: 金沢大学サテライト・プラザ
  • Year and Date: 2013-10-13
• [Presentation] Spontaneous motion and deformation of a droplet driven by chemical reaction (2013)
  • Author(s): Natsuhiko Yoshinaga
  • Organizer: Dynamics of Suspensions, Gels, Cells and Tissues
  • Place of Presentation: イギリス・アイザックニュートン数理科学研究所
  • Year and Date: 2013-06-26
• [Presentation] Spontaneous motion and deformation of a droplet (2013)
  • Author(s): Natsuhiko Yoshinaga
  • Organizer: Mathematical Modelling and Analysis of Complex Fluids and Active Media in Evolving Domains
  • Place of Presentation: イギリス・アイザックニュートン数理科学研究所
  • Year and Date: 2013-05-16
• [Presentation] 細胞の力学と、人工システムにおける自発運動 (2013)
  • Author(s): 義永那津人
  • Organizer: 計算科学ユニット第7回研究交流会
  • Place of Presentation: 京都大学
  • Year and Date: 2013-04-22
• [Presentation] 自発的に運動する液滴はpusherかpullerか? (2013)
  • Author(s): 義永那津人
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 広島大学
  • Year and Date: 2013-03-27
• [Presentation] Self-propelled motion and deformation of a droplet driven by chemical reaction (2013)
  • Author(s): Natsuhiko Yoshinaga
  • Organizer: Wetting and Capillarity in Complex Systems
  • Place of Presentation: ドイツ・マックスプランク複雑系物理学研究所
  • Year and Date: 2013-02-21
• [Presentation] Self-propulsion and deformation of a fluid droplet (2012)
  • Author(s): Natsuhiko Yoshinaga
  • Organizer: Workshop on Active Soft and Biological Matter
  • Place of Presentation: フランス・Ecole de Physique des Houches
  • Year and Date: 2012-10-03
• [Presentation] Mechanics of gels and spontaneous motion of droplets as biologically-motivated systems (2012)
  • Author(s): 義永那津人
  • Organizer: 第50回日本生物物理学会年会
  • Place of Presentation: 名古屋大学
  • Year and Date: 2012-09-22
• [Presentation] Active Motion of Janus Particle by Self-thermophoresis (2012)
  • Author(s): Natsuhiko Yoshinaga
  • Organizer: 10th International Meeting on Thermodiffusion
  • Place of Presentation: ベルギー・ブリュッセル自由大学
  • Year and Date: 2012-06-05
• [Presentation] 化学反応による液滴の自発運動 (2012)
  • Author(s): 義永那津人,北畑裕之,住野豊,永井健
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学
  • Year and Date: 2012-03-24
• [Presentation] Self-propulsion of a drop driven by Marangoni flow (2011)
  • Author(s): Natsuhiko Yoshinaga, Ken H. Nagai, Yutaka Sumino, and Hiroyuku Kitahata
  • Organizer: Regional Bio-Soft Matter Workshop : Non-equilibrium statistical Physics in Bio-Soft Systems
  • Place of Presentation: 台湾・国立台湾大学
  • Year and Date: 2011-10-28
• [Presentation] Self-propulsion of a drop driven by Marangoni flow (2011)
  • Author(s): Natsuhiko Yoshinaga, Ken H. Nagai, Yutaka Sumino, and Hiroyuku Kitahata
  • Organizer: Workshop : Collective Dynamics and Pattern Formation in Active Matter Systems
  • Place of Presentation: ドイツ・マックスプランク複雑系物理学研究所
  • Year and Date: 2011-09-12
• [Presentation] Polarity Patterns of Stress Fibers (2011)
  • Author(s): Natsuhiko Yoshinaga, Jean-Francois Joanny, Jacques Prost, and Philippe Marcq
  • Organizer: 7th International Conference on Biological Physics 2011
  • Place of Presentation: アメリカ・カリフォルニア大学サンディエゴ校
  • Year and Date: 2011-06-23
• [Book] "Dynamics of Droplets", "Pattern Formations and Oscillatory Phenomena" edited by Shuichi Kinoshita (2013)
  • Author(s): Hiroyuki Kitahata, Natsuhiko Yoshinaga, Ken H. Nagai, Yutaka Sumino
  • Total Pages: 85-118, 280
  • Publisher: Elsevier
• [Remarks]
  • URL: http://www.wpi-aimr.tohoku.ac.jp/~yoshinaga/