Fig. 4. Cytotoxicity of TiO2 NMs. Cytotoxicity effects on (A) M212, (B) AFDC, (C) AFDC300, and (D) cNRs. S–G, OMF, BEAS, and WI-38 treated with different doses (0, 12, 50, 200, and 800 μg mL–1) of TiO2 NMs for 24 h. Cell viability was assessed via the MTS assay. Data were expressed as the percentage of viability related to an untreated control. Viability values were calculated as the mean + SD of eight experiments.
