Fig. 2

Hoechst H33342 accumulation assay in E.coli isolate (#1063) in the presence and absence of CCCP and different nanoparticles (Ag, CU and ZnO). Heat-inactivated bacteria served as a positive control. The fluorescence intensity was recorded at excitation and emission wavelengths of 360 nm and 460 nm, respectively, over 80 min incubation period