Figure 5

Three dimensional response surface plots showing the effect of variable on response:- drug loading; (A) effect of PLGA and PVA concentration on the drug loading (Actual constant ethyl acetate (ml) = 4.25); (B) effect of PLGA and ethyl acetate on drug loading (Actual constant PVA (%) = 1.0); (C) effect of PVA and ethyl acetate on drug loading (Actual constant PLGA (mg) = 4.5).