Table 2: Cytotoxicity of Zinc Oxide (ZnO) nanoparticles (Trypan blue assay).

Nanoparticles Cell Type TC50 (μg/ml) TC25 (μg/ml) TC75 (μg/ml)
ZnO A549 cells 35.6 19.8 58.4
ZnO HEK cells 33.5 16.8 49.22
Quartz A549 cells 30.5 13.6 44.6