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  • Title: Investigation of phase transitions of lipids and lipid mixtures by sensitivity differential scanning calorimetry.
    Author: Mabrey S, Sturtevant JM.
    Journal: Proc Natl Acad Sci U S A; 1976 Nov; 73(11):3862-6. PubMed ID: 1069270.
    Abstract:
    High sensitivity differential scanning calorimetry is applied to the study of the thermotropic behavior of mixtures of synthetic phospholipids in multilamellar aqueous suspensions. The systems dimyristoylphosphatidylcholine dipalmitoylphosphatidylcholine, and dimyristoylphosphatidylethanolamine-distearoylphosphatidylcholine, although definitely nonideal, exhibit essentially complete miscibility in both gel and liquid crystalline states, while the system dilauroylphosphatidylcholine-distearoylphosphatidylcholine is monotectic with lateral phase separation in the gel state. Comparison of the observed transition curves with theoretical curves calculated from the calorimetrically determined phase diagrams supports a literal interpretation of the phase diagrams.
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