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Cytotoxicity of AuNPs in Vero cells. Number of viable cells to the untreated cell control (%) after incubation for 48 h. AuNPs of approximate diameters of 10 nm (AuNPs I) and 16 nm (AuNPs II) were used at concentrations of 0.295 and 5.9 μg/mL, respectively. The cell viability was measured using an MTT assay. The data are shown as means ± SD of three experiments performed six times. P, Student’s t-test.
