Table 1.

Zeta potential (mV), polydispersity index and particle size (nm) of DDAB-Chol liposomes. These parameters were analyzed in triplicates of cationic liposomes alone or encapsulating 1 μg of plasmid DNA after loading.

Formulation	Liposomes (DDAB+DC Cholesterin)	8 nM of Lipid/µg of DNA Content
Zeta Potential (mV) Average ± SD	14.15 ± 1.22	−16.95 ± 1.55
Polydispersity index Average ± SD	0.225 ± 0.02	0.250 ± 0.01
Diameter (nm) Average ± SD	57.94± 0.85	110.54 ± 0.75