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Hydrodynamic effects on concentration fluctuations in multicomponent membranes

2010/11/26 by Sanoop Ramachandran, Ramachandran, Sanoop, Shigeyuki Komura +5
Biochemistry, Genetics and Molecular Biology · Chemistry · Physics and Astronomy · #Electrostatics and Colloid Interactions #Lipid Membrane Structure and Behavior #Surfactants and Colloidal Systems #cond-mat.soft

paper · pdf · doi:10.48550/arxiv.1011.5725

10 pages, 7 figures. Accepted for publication in Soft Matter

arxiv created 2010/11/26 · arxiv updated 2010/11/29

Abstract

We investigate the hydrodynamic effects on the dynamics of critical concentration fluctuations in multicomponent fluid membranes. Two geometrical cases are considered; (i) confined membrane case and (ii) supported membrane case. We numerically calculate the wavenumber dependence of the effective diffusion coefficient by changing the temperature and/or the thickness of the bulk fluid. For some limiting cases, the result is compared with the previously obtained analytical expression. An analogy of the multicomponent membrane to 2D microemulsion is explored for the confined membrane geometry.

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