Cooperative domains in lipid membranes

Phase transitions of multibilayer structures of hydrated L-α-dipalmitoyl- and L-α-dimyristoylphosphatidylcholine (DPPC and DMPC) were studied by differential scanning calorimetry. For the main phase transition, thermodynamic parameters (temperature, enthalpy, half-width and cooperative domain size, CN) were determined in a broad range of scanning rates x, from 0.1 to 40.0 K min−1. Marked dependence on scanning rate was obtained for CN, while for...