Fig. 4. (a) Colony-forming units (CFU) for E. coli treated with NPs before and after addition of H2O2 on LB agar plate. The treated E. coli diluted 100 to 10−3, 6 microliters of each dilution were inoculated to solid LB media, the E. coli were grown at 37 °C for 12 h. (b) Antibacterial activity of NPs before and after addition of H2O2.
