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Proc Natl Acad Sci U S A. Aug 1975; 72(8): 3111–3113.
PMCID: PMC432930

Brownian motion in biological membranes.

Abstract

Brownian motion (diffusion) of particles in membranes occurs in a highly anisotropic environment. For such particles a translational mobility (independent of velocity) can be defined if the viscosity of the liquid embedding the membrane is taken into account. The results of a model calculation are presented. They suggest that for a realistic situation translational diffusion should be about four times faster in relation to rotational diffusion than in the isotropic case.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.
  • Cone RA. Rotational diffusion of rhodopsin in the visual receptor membrane. Nat New Biol. 1972 Mar 15;236(63):39–43. [PubMed]
  • Poo MM, Cone RA. Lateral diffusion of phodopsin in Necturus rods. Exp Eye Res. 1973 Dec 24;17(6):503–510. [PubMed]
  • Poo M, Cone RA. Lateral diffusion of rhodopsin in the photoreceptor membrane. Nature. 1974 Feb 15;247(5441):438–441. [PubMed]
  • Edidin M. Rotational and translational diffusion in membranes. Annu Rev Biophys Bioeng. 1974;3(0):179–201. [PubMed]

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