In Vitro Toxicity Evaluation of Engineered Cadmium-Coated Silica Nanoparticles on Human Pulmonary Cells

Figure 1

Cell viability measured by MTT assay in A549 cells exposed to increasing concentration (1–100 μg/mL) of Cd-SiO₂NPs (-□-), CdCl₂ (-▵-), and SiO₂NPs (-◆-) after 24 (a) and 48 h (b). Data are mean ± DS of three separate experiments each carried out in six replicates. Error bars: ±SD.

(a)

(b)