Rupture tension τ*m and apparent permeability Pfapp to water measured at 21°C on single-bilayer vesicles made from polyunsaturated phosphatidylcholine [PC] bilayers

Range Table - link
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.324 table 1PubMed ID10866958
Primary Source See refs beneath table
Method Abstract: "Micropipette aspiration was used to test mechanical strength and water permeability of giant-fluid bilayer vesicles composed of polyunsaturated phosphatidylcholine PC lipids."
Comments P.324 left column 2nd paragraph: "Measurements of apparent water permeability (Pfapp) were performed on at least 10 vesicles for each type of lipid. The results (±SD) are listed in Table 1 and plotted as a histogram in order of increasing unsaturation in Fig. 4. The apparent permeabilities were found to increase modestly with mono- and dimono-unsaturation, but incorporation of alternating cis-double bonds led to a significant augmentation of permeability. The semi-log plot in Fig. 5 demonstrates that log(apparent permeability) varies linearly with the reduced temperature of each lipid relative to the gel-liquid crystalline phase transition temperature reported in the literature (Table 1)."
Entered by Uri M
ID 112489