Dynamics of the lipid-bilayer membrane taking a vesicle shape

Fujitani Youhei

Physica A: Statistical Mechanics and its Applications, 1994, vol. 203, issue 2, 214-242

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 μ̧, of the inner fluid and the outer fluid unless μ is much smaller than Fr and μ̧r0 (r0 being the vesicle radius).

Date: 1994
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:203:y:1994:i:2:p:214-242

DOI: 10.1016/0378-4371(94)90153-8

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