Figure 4. Cytotoxicity of pure and Al-doped ZnO nanoparticles in MCF-7 cells.
(A) MTT assay (B) NRU assay and (C) LDH assay. Data represented are mean ± SD of three identical experiments made in triplicate. *Statistically significant difference as compared to controls (p < 0.05). (D) Significant negative correlation between MTT and LDH.