Fig. 6. Histopathological images of tissues after intravenous exposure to AgNPs at 5 mg kg–1 for 8 h in mice. (A) Lung of the saline treatment group; (B) lung of the AgNP treatment group; (C) liver of the saline treatment group; (D) liver of the AgNP treatment group. Black arrows show the obvious pathological changes of cell swelling. Scale bar = 200 μm.
