Fig. 6

The viability of A MRSA and B PAO1 after treatment with PBS, 25 μg/mL Cu-CPNs, 25 μg/mL EPL, and 25 μg/mL Cu-CPNs@EPL; significant difference (Bars represent SD, *P < 0.05, ***P < 0.01, with four replicates in each group) compared with PBS group from the collected data; SEM images of C MRSA and D PAO1 after exposure to PBS, Cu-CPNs, EPL, and Cu-CPNs@EPL; and bacterial colony photographs of E MRSA and F PAO1 after corresponding treatment