Fig. 3
A TEM and B SEM images of bacterial morphology treated with FD and FDCDs. C Extracellular ROS formation induced by FDCDs under light and dark conditions. The absorbance curve of DPBF at 410 nm after different samples were processed for different time points. D The production of 1O2 detected by ESR. E Intracellular ROS generation of E. faecalis after being treated with FD and FDCDs for 12 h. (ns no significance, **p < 0.01)