ABSTRACT
FIG. 2 Zeta potentials of liposomes made of each phospholipid (PG: phosphatidylglycerol; PE: phosphatidylethanolamine; PC: phosphatidylcholine) immersed in various concentrations of CaCl2.
charges of liposomes of PC can be neutralized by the binding of Ca2+ ions (the iso electric point of a PC liposome is around 1 x 10-3 M Ca2+ concentration), but the neutralization does not occur in the case of PE and PG in the experimental concentra tion range analyzed.
