Figure 6From: Cytotoxicity, oxidative stress, and genotoxicity in human hepatocyte and embryonic kidney cells exposed to ZnO nanoparticlesDNA damage as measured by the comet assay. DNA damage as measured by the comet assay (percentage of DNA in tail) in human hepatocyte L02 cells (A) and human embryonic kidney HEK293 cells (B) after exposure to nano ZnO (asterisk, p < 0.05).Back to article page