Fig. 7

MTT assay confirming the cytotoxic effect of blank PDEVs and loaded PDEVs on A172 (Glioblastoma) and HaCat (Keratinocytes) cells for 24, 48 and 72 h. (a) Effect of blank PDEVs on A172 cell viability, (b) Effect of PDEVs on HaCat cell viability, (c) Effect of loaded PDEVs on A172 cell viability, and (d) Effect of loaded PDEVs on HaCat cell viability.