Journal
BIOPHYSICAL JOURNAL
Volume 93, Issue 4, Pages 1204-1214Publisher
CELL PRESS
DOI: 10.1529/biophysj.107.108886
Keywords
-
Categories
Ask authors/readers for more resources
Cholesterol and other sterols are important components of biological membranes and are known to strongly influence the physical characteristics of lipid bilayers. Although this has been studied extensively in fully hydrated membranes, little is known about the effects of cholesterol on the stability of membranes in the dry state. Here, we present a Fourier transform infrared spectroscopy study on the effects of cholesterol on the phase behavior of dry liposomes composed of phosphatidylcholines with different degrees of fatty acid unsaturation or of mixtures of phosphatidylcholine with a plant galactolipid. In addition, we have analyzed the H- bonding of cholesterol, galactose, and a combination of the two additives to the P = O and C = O groups in dry phosphatidylcholine bilayers. The data indicate a complex balance of interactions between the different components in the dry state and a strong in fluence of fatty acid unsaturation on the interactions of the diacyl lipids with both cholesterol and galactose.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available