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Lipid Lateral Diffusion
Umeå University, Faculty of Science and Technology, Department of Chemistry.
2012 (English)In: Encyclopedia of Biophysics / [ed] Roberts, Gordon, Springer, 2012Chapter in book (Refereed)
Abstract [en]

Synonyms: Bacterial lipids from Acholeplasma laidlawii and Escherichia coli; Cholesterol; Lateral phase separation; Lipid domain; Lipid membrane; Lipid packing; Lipid phase equilibria; Lipid raft; Phospholipids; Pulsed field gradient NMR; Sphingomyelin

Definition: Based on statistical thermodynamics, Einstein showed that Brownian motion, i.e., the stochastic motion of particles due to thermal collisions with the solvent molecules, is well described by an equation where the mean square of the translation distance of the particle, < x2 >, is proportional to Dt, where D is the diffusion coefficient and t is the time. Lipid lateral diffusion = the translational motion of lipids along the lipid bilayer or membrane characterized by a diffusion constant, DL, and in two dimensions, the diffusion law assumes the form < x2 > = 4DLt.

Place, publisher, year, edition, pages
Springer, 2012.
National Category
Chemical Sciences
URN: urn:nbn:se:umu:diva-60126DOI: 10.1007/978-3-642-16712-6ISBN: 978-3-642-16711-9OAI: diva2:558048
Available from: 2012-10-01 Created: 2012-10-01 Last updated: 2013-06-14Bibliographically approved

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