Abstract
Aqueous dispersions of phosphatidyldiacylglycerol and phosphatidylcholesterol are shown to form bilayers by differential scanning calorimetry, diphenylhexatriene fluorescence polarization, and electron microscopy; however, 31P-nuclear magnetic resonance spectra of these dispersions are characteristic of the ‘hexagonal’ and ‘isotropic’ phases, respectively. The theoretical relationship between the conformation of phospholipid molecules in bilayers and
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