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2008 Fiscal Year Final Research Report

Phase transitions in inhomogeneous surface models for membranes and studies on the application

Research Project

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Project/Area Number 18560185
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Fluid engineering
Research InstitutionIbaraki National College of Technology

Principal Investigator

KOIBUCHI Hiroshi  Ibaraki National College of Technology, 機械システム工学科, 教授 (00178196)

Project Period (FY) 2006 – 2008
Keywords脂質分子膜 / 人工膜小胞 / 生体細胞膜 / 膜骨格 / 形態変化 / 相転移 / 統計力学
Research Abstract

膜を構成する脂質分子の流動性を摸擬したfluid 膜モデルと流動性を持たないcrystalline 膜モデルを3角形分割された球面上で定義し,膜骨格や穴の存在といった非均質成分がその形態変化の相転移に与える影響および形態変化に果たす役割等について研究した。
その結果「これらの非均質成分は従来の均質な膜モデルに起こる形態変化の相転移に大きな影響を与える」ことが明らかになった。
例えば,膜骨格と脂質分子の流動性は膜の形態変化の多様性に関わること,さらに,膜がつぶれるcollapsing 相転移と膜揺らぎ相転移は一般には2つの別のものであること,などが分かった。

  • Research Products

    (27 results)

All 2009 2008 2007 2006

All Journal Article (15 results) Presentation (12 results)

  • [Journal Article] Non-trivial effect of the in-plane shear elasticity on the phase transitions of fixed-connectivity meshwork models2008

    • Author(s)
      I.Endo and H.Koibuchi
    • Journal Title

      European Physical Journal B 66

      Pages: 467-475

  • [Journal Article] Shape transformation transitions in a model of fixed-connectivity surfaces supported by skeletons2008

    • Author(s)
      H.Koibuchi
    • Journal Title

      European Physical Journal B 66

      Pages: 85-90

  • [Journal Article] Surface tension in an intrinsic curvature model with fixed one-dimensional boundaries2008

    • Author(s)
      H.Koibuchi
    • Journal Title

      Journal of Statistical Mechanics

      Pages: 08008

  • [Journal Article] Phase structure of a surface model with many fine holes2008

    • Author(s)
      H.Koibuchi
    • Journal Title

      European Physical Journal E 26

      Pages: 301-308

  • [Journal Article] Possible effects of tilt order on phase transitions of a fixed connectivity surface model2008

    • Author(s)
      H.Koibuchi
    • Journal Title

      Physical Review E 77

      Pages: 021104(1-8)

  • [Journal Article] Shape transformations of a compartmentalized fluid surface2007

    • Author(s)
      H.Koibuchi
    • Journal Title

      Physical Review E 76

      Pages: 061105(1-5)

  • [Journal Article] Shape transformation transitions of a tethered surface model2007

    • Author(s)
      H.Koibuchi
    • Journal Title

      European Physical Journal B 59

      Pages: NO..3 405-411

  • [Journal Article] Phase transitions in a fluid surface model with a deficit angle term2007

    • Author(s)
      H.Koibuchi
    • Journal Title

      European Physical Journal B 59

      Pages: No.1 55-62

  • [Journal Article] Phase transition meshwork models for spherical membranes2007

    • Author(s)
      H.Koibuchi
    • Journal Title

      Journal of Statistical Physics 129

      Pages: No.4 605-621

  • [Journal Article] Phase structure of a spherical surface model on fixed connectivity meshes2007

    • Author(s)
      H.Koibuchi
    • Journal Title

      Physics Letters A 371

      Pages: 278-284

  • [Journal Article] Phase transition of compartmentalized surface models2007

    • Author(s)
      H.Koibuchi
    • Journal Title

      European Physical Journal B 57

      Pages: 321-330

  • [Journal Article] Phase structure of a surface model on dynamically triangulated spheres with elastic skeletons2007

    • Author(s)
      H.Koibuchi
    • Journal Title

      Physical Review E 75

      Pages: 051115(1-9)

  • [Journal Article] Collapsing transition of spherical tethered surfaces with many holes2007

    • Author(s)
      H.Koibuchi
    • Journal Title

      Physical Review E 75

      Pages: 011129(1-6)

  • [Journal Article] Phase transition of triangulated spherical surfaces with elastic skeletons2007

    • Author(s)
      H.Koibuchi
    • Journal Title

      Journal of Statistical Physics 127 Number 3

      Pages: 457-470

  • [Journal Article] Phase transitions of an intrinsic curvature model on dynamically triangulated spherical surfaces with point boundaries2006

    • Author(s)
      S. Obata, M. Egashira, T. Endo, and H.Koibuchi
    • Journal Title

      Journal of Statistical Mechanics

      Pages: 11016

  • [Presentation] 膜モデルのFlat Histogram MonteCarlo シミュレーション2009

    • Author(s)
      鯉渕
    • Organizer
      日本機械学会
    • Place of Presentation
      関東
    • Year and Date
      20090000
  • [Presentation] 束縛された力学変数による膜モデルの相転移2009

    • Author(s)
      飛田,鯉渕
    • Organizer
      日本機械学会
    • Place of Presentation
      関東
    • Year and Date
      20090000
  • [Presentation] A Compartmentalized Surface model for Membranes2008

    • Author(s)
      H. Koibuchi
    • Organizer
      International Workshop, MTE2008(Mathematics, Technology and Education)
    • Place of Presentation
      Ibaraki National College of Technology
    • Year and Date
      20080000
  • [Presentation] 2重膜構造をもつ面積エネルギー膜モデルの相転移2008

    • Author(s)
      石田,鯉渕
    • Organizer
      日本機械学会
    • Place of Presentation
      茨城
    • Year and Date
      20080000
  • [Presentation] Phase Transitions of a Fluid Surface model with Elastic Skeletons2007

    • Author(s)
      H. Koibuchi
    • Organizer
      V Moscow International Conference on Operations Research (ORM2007)
    • Place of Presentation
      Moscow State University
    • Year and Date
      20070410-14
  • [Presentation] メッシュワークモデルの相転移2007

    • Author(s)
      関口,和田,鯉渕
    • Organizer
      日本機械学会
    • Place of Presentation
      茨城
    • Year and Date
      20070000
  • [Presentation] 面内変形エネルギーを考慮した膜モデルの相転移2007

    • Author(s)
      和田,関口,鯉渕
    • Organizer
      日本機械学会
    • Place of Presentation
      茨城
    • Year and Date
      20070000
  • [Presentation] Phase Transition of Extrinsic Curvature Surface Model on a Disk2006

    • Author(s)
      T. Endo, M. Egashira, S. Obata, H. Koibuchi
    • Organizer
      International Workshop, MTE2006(Mathematics, Technology and Education)
    • Place of Presentation
      Ibaraki National College of Technology
    • Year and Date
      20061200
  • [Presentation] Skeleton Model for Surfaces2006

    • Author(s)
      H.Koibuchi
    • Organizer
      ICIC2006
    • Year and Date
      20060000
  • [Presentation] 流動性のある膜における弦張力のシミュレーション2006

    • Author(s)
      小幡,江頭,遠藤,鯉渕
    • Organizer
      日本機械学会
    • Place of Presentation
      茨城
    • Year and Date
      20060000
  • [Presentation] 膜骨格で支えられた球面状膜の相転移2006

    • Author(s)
      遠藤,江頭,小幡,鯉渕
    • Organizer
      日本機械学会
    • Place of Presentation
      茨城
    • Year and Date
      20060000
  • [Presentation] 区画された液膜モデルの相転移2006

    • Author(s)
      江頭,遠藤,小幡,鯉渕
    • Organizer
      日本機械学会
    • Place of Presentation
      茨城
    • Year and Date
      20060000

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Published: 2010-06-10   Modified: 2016-04-21  

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