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The viability assay and LDH levels of Caco-2 cells after exposed to Ag-CIT (A,B) and Ag-PVP (C,D) for 21 days. (A,C) Percent viable cells compared to the no particle (0 μg/mL) condition. (B,D) Percent LDH release compared to 100% cell lysis. All data are represented as the mean ± SD (n = 6). * p < 0.05 comparing with the 0 μg/mL control.
