Figure 1. Cytotoxicity toward the human foreskin fibroblast (Hs68) cell line after 12 h of incubation with AgNP/NSP, polymer dispersed AgNP (Poly-Ag) and silver sulfadiazine (SS) using the MTT assay (a).

The values are expressed as the mean ± SD from 4 independent experiments. DNA damage in Chinese hamster ovary (CHO) cells by the comet assay showed the average lengths of the cell tails after incubation with different concentrations of AgNP/NSP and Poly-Ag (b). Data are shown as the mean ± SD (at least 200 cell tails were counted in each sample). *P<0.05 at each concentration, Student’s t test.