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Time-dependent histopathological changes induced by NGO.
Notes: Representative HE-stained images of the liver and lung collected from mice treated with 5 mg/kg NGO at 24 hours, one week, one month, and 3 months. The black arrows indicate NGO aggregations. All of the images are shown at 400× magnification with a 50 μm scale bar.
Abbreviations: NGO, nanoscale graphene oxide; HE, hematoxylin-eosin.
