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Chronic histopathological changes induced by NGO and NGO-PEG.
Notes: Representative HE and Masson-stained images of the liver and lung, collected from mice treated with Milli-Q water, 5 mg/kg NGO, or 5 mg/kg NGO-PEG and sacrificed after 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; PEG, polyethylene glycol.
