Figure 1.
Cell viability in response to different copper concentrations for 10 h. (a) Cell counting kit 8 (CCK-8) cell viability assay. (b) EdU staining assay. (c) Statistical analysis of the percentage of EdU positive cells. The result was represented as a percentage of the control. Data represent mean values ± standard deviation (n = 4). Significant differences between processing groups are represented by different lowercase letters (p < 0.05).