Water permeability of egg phosphatidylcholine [PC] bilayers

Range 10 - 50 µm/sec
Organism Unspecified
Reference Olbrich K, Rawicz W, Needham D, Evans E. Water permeability and mechanical strength of polyunsaturated lipid bilayers. Biophys J. 2000 Jul 79(1):321-7. p.322 left column top paragraphPubMed ID10866958
Primary Source Fettiplace, R., and D. A. Haydon. 1980. Water permeability of lipid membranes. Physiol. Rev. 60: 510 –550.PubMed ID6992166
Comments P.322 left column top paragraph: "A prominent feature of water permeability measurements has been the significant variation in values obtained by different techniques and different laboratories. For instance, in early work on permeability of egg PC bilayers (similar to C18:0/1 PC tested here), the values of water permeability ranged from 10 to 50 μm/s (primary source). Likewise, permeability coefficients for osmotic filtration in some studies exceeded the values of permeability derived from tracer diffusion (Jansen and Blume, 1989) whereas in others, no difference was found between results with the two methods (Finkelstein, 1987 and Ye and Verkman, 1989)."
Entered by Uri M
ID 112488