Figure 9
Toxicity evaluation of SWCNTs-Ag and pSWCNTs-Ag in A549 cells by TEM (a-e) and DNA fragmentation assay (f). (a) non-treated A549 cells. (b) A549 cells treated with 31.25 μg/mL of SWCNTs-Ag. (c) A549 cells treated with 15.6 μg/mL of SWCNTs-Ag. (d) A549 cells treated with 31.25 μg/mL of pSWCNTs-Ag. (e) A549 cells treated with 15.6 μg/mL of pSWCNTs-Ag, N: nucleus; CY: cytoplasm; CO: cell organelle. (f) DNA fragmentation assay, Lane 1: 100 bp DNA ladder; 2: non treated control; 3: cells treated with 31.25 μg/mL of SWCNTs-Ag; 4: cells treated with 15.6 μg/mL of SWCNTs-Ag; 5: cells treated with 31.25 μg/mL of pSWCNTs-Ag; 6: cells treated with 15.6 μg/mL of pSWCNTs-Ag.