The effect of curvature and topology on membrane hydrodynamics

M. L. Henle, R. McGorty, Andrew B Schofield, A. D. Dinsmore, A. J. Levine

Research output: Contribution to journalArticlepeer-review

Abstract

We study the mobilities of point-like and extended objects (rods) on a spherical membrane to show how these quantities are modified in a striking manner by the curvature and topology of the membrane. We also present theoretical calculations and experimental measurements of the membrane fluid velocity field around a moving rod bound to the crowded interface of a water-in-oil droplet. By using different droplet sizes, membrane viscosities, and rod lengths, we show that the viscosity mismatch between the interior and exterior fluids leads to a suppression of the fluid flow on small droplets that cannot be captured by the flat-membrane predictions. Copyright (c) EPLA, 2008

Original languageEnglish
Article number48001
Pages (from-to)-
Number of pages6
JournalEurophysics Letters
Volume84
Issue number4
DOIs
Publication statusPublished - Nov 2008

Keywords

  • FLUID MEMBRANES
  • ROTATIONAL DRAG
  • FINITE DEPTH
  • DYNAMICS
  • FLOW
  • PARTICLES
  • FLUCTUATIONS
  • MONOLAYERS
  • VESICLES
  • RECEPTOR

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