抄録
Dynamic electronic behavior of an L-α-dioleoyllecithin monolayer at an air-water interface was investigated by using a new displacement current measuring technique. The amphiphilic molecules were carefully placed with their spreading solvent on the surface of distilled water (pH 5.8) to allow formation of their monomolecular film on it. The displacement current due to a decrease of monolayer-covering area could be recorded before the initial rise of surface pressure. We assumed that the current generation might be ascribed to a gas/liquid phase transition.