Fig. 3

(A) The mean droplet size of PSO-NE varies depending on the amount of oil to surfactant ratio and the duration of sonication. (B) The mean polydispersity index (PDI) of PSO-NE varies depending on the amount of oil to surfactant ratio and the duration of sonication. Data are representative of three experiments expressed as mean ± SD (n = 3). *P < 0.05, **P < 0.01, ***P < 0.001 using one way ANOVA Tukey post test.