Table 2.

Physicochemical parameters of different liposomes

Liposomes	Particle size (nm)	Zeta potential (mV)	Entrapment efficiency (%)
mPEG-PE-L	113.2 ± 8.3	−19.6 ± 4.0	92.6 ± 3.6
mPEG-CHEMS-L	125.4 ± 7.2	−24.1 ± 3.6	91.2 ± 3.4
mPEG-Hz-CHEMS-L	120.3 ± 4.6	−21.2 ± 3.4	94.4 ± 4.2

Abbreviations: mPEG-Hz-CHEMS, methoxy polyethylene glycol 2000-hydrazonecholesteryl hemisuccinate; mPEG-CHEMS, methoxypolyethylene glycol 2000- cholesteryl hemisuccinate; mPEG-PE, methoxypolyethylene glycol 2000- distearoyl phosphatidylethanolamine; L, liposomes.