Figure 7. Roles of different alloys extracts in cell apoptosis of U2OS cells.
(a) Mg-1Ca-0.5Sr-2Zn; (b) Mg-1Ca-0.5Sr-4Zn; (c) Mg-1Ca-0.5Sr-6Zn; (d) Mg-1Ca-0.5Sr; (e) Ti-6Al-4V; (f) apoptosis rate of the cells after incubated in the extracts. *compared to the control group; One symbol, p < 0.05; Two symbols, p < 0.01.