Fig. 5

Different niosomal formulations before and after 10 h incubation at 37 °C in SIF with bile salts: a Z-average (nm), b PDI, and c Zeta potential (mV). Data represent the mean ± SEM (n = 3). Where SIF is the simulated intestinal fluid and STC is sodium taurocholate. *P value < 0.05 versus time 0