Time-resolved x-ray diffraction and calorimetric studies at low scan rates

The phase transitions of dipalmitoylphosphatidylethanolamine (DPPE) in excess water have been examined by low-angle time-resolved x-ray diffraction and calorimetry at low scan rates. The lamellar subgel/lamellar liquid-crystalline (L(c) --> L(alpha)), lamellar gel/lamellar liquid-crystalline (L(beta) --> L(alpha)), and lamellar liquid-crystalline/lamellar gel (L(alpha) --> L(beta)) phase transitions proceed via coexistence of the initial and...