The hydrolysis of p-nitrophenyl acetate was studied 20-47℃ in the presence of phospholipid bilayer membrane. Liposomes, in the size range of microsomal vesicles, are formed when ether solutions of L-α-lecithin are injected into warm aqeous solution...
The hydrolysis of p-nitrophenyl acetate was studied 20-47℃ in the presence of phospholipid bilayer membrane. Liposomes, in the size range of microsomal vesicles, are formed when ether solutions of L-α-lecithin are injected into warm aqeous solutions. The remarkable difference of rate between intra-and inter vesiclar reaction was observed, where intra vesiclar reaction was more catalytic effect. The enhancement of rate by the L-α-lecithin vesicle was influenced by its hydrophobicity. The phase transition temperature from gel to liquid-crystal state of liposomes was 37∼43℃.