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Models for boundary effects on molecular rotation in membranes

✍ Scribed by Gregory R. Andersen; Robert M. Mazo

Publisher
Wiley (John Wiley & Sons)
Year
1980
Tongue
English
Weight
377 KB
Volume
19
Category
Article
ISSN
0006-3525

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✦ Synopsis

Abstract

Rotational and wobbling diffusion coefficients for spherical and long‐chain molecules in membranes are calculated using a simple hydrodynamic model. Estimates of the contributions to the diffusion coefficients arising from hydrodynamic interactions between molecules and membrane interfaces are obtained and found to be small. For molecules containing polar head groups, we show that the presence of a membrane interface can produce a significant reduction in the wobbling diffusion coefficient over what would be obtained in an isotropic fluid.

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