Table 2. Particle size, polydispersity index, encapsulation efficiency and loading capacity of nanoethosomal formulations. The results of encapsulation efficiency and loading capacity values are presented in mean ± standard deviation (n=at least 3).

Formulation code	Size (nm)	Polydispersity index	Zeta potential (mV)	EE a (%)	LC b (%)
F1	165.2 ± 6.3	0.27	-23.5 ± 2.6	66.5 ± 4.3	5.4 ± 0.8
F2	105.4 ± 7.9	0.25	-33.6 ± 2.9	40.1 ±2.5	8.0 ± 0.71
F3	121.2 ± 06.9	0.24	-16.9 ± 1.9	18.7 ± 1.9	3.7 ± 0.6
F4	404.2 ± 25.3	0.26	-2.15 ± 0.9	9.7 ± 1.2	1.9 ± 0.3
F5	239.9 ± 11.6	0.17	-6.45 ± 0.8	12.6 ± 2.0	2.5 ± 0.3

^aEncapsulation Efficiency

^bLoading Capacity