Fig. 8

Apoptosis assay results in U87 cells treated with Na-doped ZnO NPs at 24 and 48Â h. (a: control cells); (b: 24-h treated cells); (c: 48-h treated cells).

Apoptosis assay results in U87 cells treated with Na-doped ZnO NPs at 24 and 48Â h. (a: control cells); (b: 24-h treated cells); (c: 48-h treated cells).