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Viability of Vero cells in the presence of AuNPs-As, HAuCl4, and garlic extract. Vero cells (1.5 × 104 cells) plated in 96-well plates were treated with different concentrations of AuNPs-As during 72 h and the viability was determined with an MTT assay. The data are expressed as relative viability (%) to that for the untreated control cells, which was defined as 100%. The data shown are the mean ± SD from three replicated experiments. α ≤ 0.05 (*).
