Figure 3: HeLa cell viability of after 6 and 24 h of incubation with bioconjugates and controls. HeLa cells were incubated with bioconjugates (0.15 mg/ml of Cyt c) for 6 h (black columns) and 24 h (gray columns). Asterisks (**) indicate a statistically significant difference between samples after 6 h and 24 h of incubation, p<0.001. Controls are the individual elements employed at the highest experimental concentration in the experiments with the conjugates.