Figure 3.

Dose dependent effect of HN on the AgNPs-induced cellular toxicity triggered increase in the cell viability of SH-SY5Y cells. The viability of SH-SY5Y cells was determined after 24-h exposure to different concentrations of HN (0.1–20 µg/mL) at a fixed concentration of AgNPs (10 µg/mL). At least three independent experiments were performed for each sample. The results are expressed as the mean ± standard deviation of three independent experiments. Differences between the treated and control groups were measured using Student’s t-test. Statistically significant differences between the treated and control group are indicated by (* p < 0.05, ** p < 0.01).