Figure 7: (A) DNA fragmentation assay in HepG2 cancer cells Lane 1 (1.5 kb ladder), Lane 2 (Control) and Lane 3-7 (treated with different concentration of gold nanoparticles). (B) A549 cancer cell line: Lane 1 (1.0 kb molecular marker), Lane 2 (Control) and Lane L3-L7 (treated with different concentration of gold nanoparticles).