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. 2020 Oct 7;10:16680. doi: 10.1038/s41598-020-73497-z

Figure 9.

Figure 9

Confocal microscopy of green fluorescence images of ROS in Cu2O NPs treated, and untreated control cells measured by 2,7-dichlorofluorescin diacetate (DCFH-DA) fluorescence-based assay. Cells were treated with 0, 62.5 and 125 μg/mL of surfactant stabilized Cu2O NPs for 24 h. (ac) green fluorescence images of 0, 62.5 and 125 μg/mL dose Cu2O NPs exposed Gram-positive B. subtilis CN2 cells. (df) green fluorescence images of 0, 62.5 and 125 μg/mL dose Cu2O NPs exposed Gram-negative P. aeruginosa CB1 cells. Untreated cells were used as a negative control (a, d). Scale Bar: 5 µm.