Cerium Oxide Nanoparticles Induced Toxicity in Human Lung Cells: Role of ROS Mediated DNA Damage and Apoptosis

Figure 3

Morphological changes in A549 cells exposed to CeO₂ NPs for 24 h. Cells were exposed, washed, and examined under phase contrast microscope: (a) control cells, (b) 1 μg/mL, (c) 10 μg/mL, (d) 25 μg/mL, (e) 50 μg/mL, and (f) 100 μg/mL concentration exposed cells (magnification ×20).

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