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Tumor volume (A) and a visual comparison (B) of Walker-256 carcinosarcoma following intravenous injection of saline (C), D-PAA (D), doxorubicin (Dox), D-PAA/ZnO NPs (D/Zn), D-PAA/ZnO NPs/Dox (D/Zn/Dox) for 5 days. Staining with 30 μM TSQ in PBS for 30 min (M±SD, *p<0.05). The volume of a single injection was 0.5 mL. Doxorubicin dosage was 1.5 mg/kg of rat weight, ZnO NPs was 200 μMol/kg.
