Drag coefficient of a liquid domain in a fluid membrane surrounded by confined three-dimensional fluids

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6 Citations (Scopus)

Abstract

It is thought that, in a biomembrane, some minor lipid constituents are concentrated in a domain called the lipid raft. Some raftlike domains in a lipid-bilayer membrane can be regarded as two-dimensional droplets. The membrane viscosities inside and outside the domain are generally different. The present author previously studied the drag coefficient of a circular liquid domain in a flat fluid membrane surrounded by three-dimensional fluids, which occupy the semi-infinite spaces on both sides of the membrane. Here we generalize this problem by assuming that the surrounding fluids are confined by container walls parallel to the membrane. Errors in the present author's previous studies are also corrected in this paper.

Original languageEnglish
Article number084403
JournalJournal of the Physical Society of Japan
Volume82
Issue number8
DOIs
Publication statusPublished - 2013 Aug

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drag coefficients
membranes
fluids
lipids
liquids
rafts
containers
viscosity

Keywords

  • Diffusion coefficient
  • Hadamard-Rybczynski problem
  • Uniform convergence

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

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AB - It is thought that, in a biomembrane, some minor lipid constituents are concentrated in a domain called the lipid raft. Some raftlike domains in a lipid-bilayer membrane can be regarded as two-dimensional droplets. The membrane viscosities inside and outside the domain are generally different. The present author previously studied the drag coefficient of a circular liquid domain in a flat fluid membrane surrounded by three-dimensional fluids, which occupy the semi-infinite spaces on both sides of the membrane. Here we generalize this problem by assuming that the surrounding fluids are confined by container walls parallel to the membrane. Errors in the present author's previous studies are also corrected in this paper.

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