Table III.

Optimization of Drug Loading in Various Nanocarriers

Carrier system	Process variable	Average particle size (nm) (mean±S.D. n = 3)	% Entrapment efficiency (mean±S.D. n = 3)
Liposomes	Mole % of drug with respect to lipid
	4	160 ± 2.2	37.5 ± 1.7
	5	179 ± 1.7	38.2 ± 1.9
	6	185 ± 2.4	49.2 ± 1.5
	7	181 ± 1.2	44.72 ± 1.2
Nanoparticles	Drug/polymer ratio (%w/w)
	1	170 ± 1.5	28.35 ± 2.7
	2	178 ± 1.4	62.34 ± 1.5
	3	175 ± 1.7	41.45 ± 1.1
	4	182 ± 2.6	35.76 ± 1.3
Dendrimers	Dendrimer/drug ratio
	1:6	8 ± 0.26	25.54 ± 0.35
	1:7	8 ± 0.39	26.12 ± 0.51
	1:8	8 ± 0.271	28.26 ± 0.74
	1:9	8 ± 0.24	27.34 ± 0.42
	1:10	8 ± 0.12	26.25 ± 0.34
Carbon nanotubes	Carboxylated MWCNTs/drug ratio
	1:1	210 ± 0.52	54.57 ± 1.1
	1:2	215 ± 0.20	61.54 ± 0.9
	1:3	213 ± 0.19	74.70 ± 1.9
	1:4	212 ± 0.52	71.68 ± 1.3

Results are represented as mean±SD, n = 3