351693.fig.001a
(a)
351693.fig.001b
(b)
351693.fig.001c
(c)
351693.fig.001d
(d)
Figure 1: Transmission electron micrographs of different solid lipid nanoparticles. (a) Blank PZQ SLN, (b) PZQ TP-SLN, (c) PZQ TS-SLN, and (d) PZQ TP SLN stored at refrigerated temperatures for six months.