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The morphology images of a Fe3O4@ZnO, b Fe3O4@ZnO-Bru, c Bru, and d Fe3O4@ZnO-Bru+UVA treated SCC cells, with the concentrations of 0.005 mg/mL (a1, b1, c1, d1, a4, b4, c4 and d4), 0.01 mg/mL (a2, b2, c2, d2, a5, b5, c5 and d5) and 0.05 mg/mL (a3, b3, c3, d3, a6, b6, c6 and d6) after incubation for 24 h (A) or 48 h (B).
