Table 1.

Physico-chemical characteristics of liposomes. Each value represents the mean (SEM) of four experiments (n = 4).

	Formulation	Molar Ratio	Z-Average Size (nm)	PDI	Surface Charge (mV)
1	DOTAP/Chol/DOPE	1/0.75/0.5	177.2 ± 5.1	0.10 ± 0.03	+56.2 ± 5.2
2	DOTAP/Chol/DOPE	1/0.5/0.5	181.4 ± 11.4	0.13 ± 0.07	+53.9 ± 4.7
3	DOTAP/DOPE	1/1	167.2 ± 4.2	0.07 ± 0.04	+56.7 ± 4.3
4	DC-Chol/DOPE	1/1	183.0 ± 4.6	0.06 ± 0.01	+53.3 ± 3.3