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The dose (mg/L of AuNPs) versus response (intracellular Au concentration—iAuC) curves for internalization of different AuNPs at day 16 of cell incubation. (A) Ap/En cells, and (B) Ap/Ep cells. Values are mean ± SD. *: p < 0.05, significant, when compared with corresponding data from different groups, x: p < 0.05, significant, when compared with different dose values from the same group.
