Measurements of elastic moduli of bilayers

Range Table - link
Organism Generic
Reference Evans E, Rawicz W. Entropy-driven tension and bending elasticity in condensed-fluid membranes. Phys Rev Lett. 1990 Apr 23 64(17):2094-2097. p.2096 table IPubMed ID10041575
Primary Source See ref [9] in Comments below
Method Abstract: "Sensitive micropipet methods have been used to measure the relation between tension and the projected surface area in fluid membranes of vesicles over a 4-order-of-magnitude range in tension (10^-3 - 10 dyn/cm)."
Comments P.2096 right column 2nd paragraph: "Table I cumulates measurements of elastic moduli for bilayers made with five different lipid compositions. These equilibrium measurements of elastic bending moduli are consistent with values obtained from Fourier analysis of dynamic fluctuations in vesicle shapes. Inspection of the elastic moduli given in Table I clearly shows that bilayers with lower area compressibility are also less flexible." ref [9]: "Five types of diacyl lipids were used to make bilayers, chosen to cover a wide range of surface compressibility: DAPC (diarachidonyl phosphatidyl-choline), DMPC (dimyristoyl phosphatidylcholine), SOPC (1-stearoyl-2-oleoyl phosphatidylocholine), SOPC:CHOL (a 1:1 mixture of SOPC and cholesterol), and DGDG (diagalactosyl diacylglycerol)."
Entered by Uri M
ID 112592