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5-FU efficacy in HSC-3 cells after treatment with various AuNPs (0.4 nM, 24 h) and 5-FU (100 μM, 48 h); control represents cells that were not treated with any AuNPs. Cells that were not treated with 5-FU, and cells that were treated with 5-FU are shown. 5-FU efficacy is defined as % cells in S phase divided by % cells in G2/M phase of the cell cycle.
