Fig. 5

Viability of MCF7 (a, b) and HNTMCs (c, d) cells after 24 and 48 h treated with free DTX, blank-SLN and SLN-DTX at 0.001, 0.01, 0.1, 1, 10 and 100 µg/mL (equivalent DTX concentrations), evaluated by MTT assay. Data are expressed as mean ± standard error of the mean (**p < 0.01; ***p < 0.001; ****p < 0.0001)