Maxwell‐displacement‐current across phospholipid monolayers due to phase transition

With Maxwell‐displacement‐current‐measuring method, the phase transitions of phospholipid monolayers of L‐α‐dilaurylphosphatidylethanolamine (DLPE) and L‐α‐dimyristoyl‐ phosphatidylethanolamine (DMPE) on a water surface were detected. Some fine features, such as the first order phase transition from gaseous to the polar ordering phase and the polar ordering of lipid molecules in the solid phase coexisting with fluid, were revealed for the first time.