The success of graphene oxides has gained extensive research interests in developing novel 2D nanomaterials (NMs). WS(2) nanosheets (NSs) are novel transition metal-based 2D NMs, but their toxicity is unclear. In this study, we investigated the oral toxicity of WS(2) NSs to mouse intestines. Male mice were administrated with vehicles, 1, 10, or 100 mg/kg NSs via intragastric route, once a day, for 5days. The results indicate that the NSs did not induce pathological or ultrastructural changes in intestines. There were minimal changes of trace e...
