Fig. 8

Cytotoxicity study performed using the MTT assay. SKBR3 cells were incubated in the presence of different concentrations of blended spheres for 15 min and then cultured for 72 h. The percentage of MTT reduction was calculated in reference to the nontreated control cells. The results demonstrate the mean and standard deviation of three independent experiments. * indicates statistical significance with p < 0.05; and **p < 0.01