Figure 6.

MCF7 and A549 cells viability after 24 and 72 h stimulation with Pg-AgNPs_S2 (10, 25, 50, 75, 100 and 150 μg/mL). (A)—24 h treatment of MCF7 cells; (B)—72 h treatment of MCF7 cells; (C)—24 h treatment of A549 cells, (D)—72 h treatment of A549 cells. The results are expressed as cell viability percentage (%) related to the Control cells. Comparison among groups was made using the one-way ANOVA test followed by Tukey’s test. A p-value of ≤0.05 was considered to be of statistical significance (* p ≤ 0.05; ** p ≤ 0.01; **** p ≤ 0.0001).