Figure 2
From: Antitumor activity of colloidal silver on MCF-7 human breast cancer cells
Apoptosis mediated by colloidal silver on MCF-7 cell line. MCF-7 cells were treated with increasing concentrations of colloidal silver (1.75 to 17.5 ng/mL) for 5 h. Thereafter, the levels of mono-oligo nucleosome fragments were quantified using the Cell Death Detection Kit. The experiments were performed in triplicates; data shown represent mean + SD of three independent experiments. *P < 0.05 as compared with untreated cells.