Dynamics of the lipid-bilayer membrane taking a vesicle shape

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

The lipid-bilayer membrane is treated as a two-dimensional viscous fluid with a restoring force against bending. We present a general theory of the dynamics of such a fluid, and as an application we calculate the damping coefficient of slow overdamped motion of the membrane which takes a spherical-vesicle shape in equilibrium. Discussions of the in-plane compression modulus and the membrane continuity in some recent theories are inappropriate for the lipid-bilayer membrane. We also find that membrane viscosity μ is important as compared to viscosities, μ̄ and μ ̧, of the inner fluid and the outer fluid unless μ is much smaller than Fr and μ ̧r0 (r0 being the vesicle radius).

Original languageEnglish
Pages (from-to)214-242
Number of pages29
JournalPhysica A: Statistical Mechanics and its Applications
Volume203
Issue number2
DOIs
Publication statusPublished - 1994 Feb 15
Externally publishedYes

Fingerprint

Lipid Bilayer
Vesicles
lipids
Membrane
membranes
Fluid
fluids
Viscosity
viscosity
viscous fluids
Viscous Fluid
continuity
Damping
Modulus
Compression
damping
Radius
Calculate
radii
Motion

ASJC Scopus subject areas

  • Mathematical Physics
  • Statistical and Nonlinear Physics

Cite this

Dynamics of the lipid-bilayer membrane taking a vesicle shape. / Fujitani, Youhei.

In: Physica A: Statistical Mechanics and its Applications, Vol. 203, No. 2, 15.02.1994, p. 214-242.

Research output: Contribution to journalArticle

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