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Evaluation of HaCat (A) and 8505C (B) cell viability, after a 24 h incubation period with the different AuNPs formulations (coated and uncoated, and functionalized with the different ligands and non-functionalized) at two different concentrations (20 µM, in black columns and 80 µM, in grey columns). Results are shown regarding mean ± SD, n = 5 (* p < 0.05, ** p < 0.01, *** p < 0.001 vs. control).
