Figure 6. Cytotoxicity tests. (a) MTT assay of SKBR3 cancer cells, (b) MTT assay of NIH/3T3 normal cells (after 24 h incubation of CDs), (c) LDH assay of SKBR3 cell line. The graph shows no obvious toxicity of CDs to both cancer and normal cells even at high concentrations. Values represent mean ± SEM (P ≤ 0.001, one way ANOVA).
