Shape deformation of vesicle coupled with phase separation

Miho Yanagisawa, Masayuki Imai, Takashi Taniguchi

Research output: Contribution to journalArticlepeer-review

Abstract

In the presence of the osmotic pressure difference between the inside and outside of the vesicles, spherical vesicles deform into various shapes, such as prolates, discocytes, and starfish, depending on excess areas and area differences. When we couple such shape deformation with phase separation, the lateral heterogeneity arising from phase separation in membranes causes new shape-deformation branches. In domain coarsening stage, prolate, discocyte, and starfish vesicles show a shape convergence to discocytes. In late stage, domains start to bud toward inside or outside of the vesicle depending on the excess area. We discuss the deformation branches in terms of the membrane elasticity model for multi-component vesicles.

Original languageEnglish
Pages (from-to)71-80
Number of pages10
JournalProgress of Theoretical Physics
Issue number175 SUPPLEMENT
Publication statusPublished - 2008 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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