Hydrodynamics of a permeable patch in the fluid membrane. |
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| Authors: | F W Wiegel |
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| Institution: | Department of Applied Physics, Twente University of Technology, P.O. Box 217, 7500 AE Enschede, The Netherlands |
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| Abstract: | A patch of cross-linked proteins in the fluid membrane is considered for the case in which the patch is permeable (porous) for the lipid flow in the membrane. The Bretscher flow field is studied quantitatively and the distribution of Brownian particles over the surface of the cell is given. This leads to a simple quantitative criterion for cap formation. Finally, explicit expressions for the rotational and translational diffusion coefficients of a permeable patch, as calculated from hydrodynamics, are given. |
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