Figure 2

Representative SEM images of E. coli bacterial cells after exposure to ZnO nanoparticles with different concentrations (0.01, 0.1 and 1.0 mg/ml).
Left-most column indicates the initial bacterial concentrations (106, 107 and 108 CFU/ml).

Representative SEM images of E. coli bacterial cells after exposure to ZnO nanoparticles with different concentrations (0.01, 0.1 and 1.0 mg/ml).
Left-most column indicates the initial bacterial concentrations (106, 107 and 108 CFU/ml).