Research Article

Iterative Cellular Screening System for Nanoparticle Safety Testing

Figure 3

Viability of NIH-3T3 cells (a) and A549 cells (b) after ZnO-NP exposure determined with the MTT assay. The cells were treated with nanoparticle suspension, coating, or extract medium. The signals of untreated cells were set as 100%. Data points are means ± SD for . .
(a) NIH-3T3 cells
(b) A549 cells