Scanning calorimetric evidence for a third phase transition in phosphatidylcholine bilayers.
- 1 September 1980
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 77 (9), 5060-5063
- https://doi.org/10.1073/pnas.77.9.5060
Abstract
A 3rd phase transition, centered at about 18.degree. C, was observed by differential scanning calorimetry in a multilamellar suspension of dipalmitoyl phosphatidylcholine that was held at 0.degree. C for several days. This transition is less cooperative than the other 2 transitions which are well-known for this system and it is accompanied by an enthalpy increase about 3 times as large as that of the so-called pretransition at 35.degree. C and about half that of the main gel to liquid crystal transition at 41.degree. C. The reversal of this transition on colling is extremely slow.This publication has 4 references indexed in Scilit:
- Fluorescence and calorimetric studies of phase transitions in phosphatidylcholine multilayers: kinetics of the pretransitionBiochemistry, 1978
- Nature of the gel to liquid crystal transition of synthetic phosphatidylcholines.Proceedings of the National Academy of Sciences, 1978
- Investigation of phase transitions of lipids and lipid mixtures by sensitivity differential scanning calorimetry.Proceedings of the National Academy of Sciences, 1976
- Kinetics of the Crystalline-Liquid Crystalline Phase Transition of Dimyristoyl L-α -Lecithin BilayersProceedings of the National Academy of Sciences, 1974