Fig. 3From: Determination of efflux activity in Enterococci by Hoechst accumulation assay and the role of zinc oxide nanoparticles in inhibition of this activityHoechst H33258 accumulation in enterococcal isolate (#B59) in the presence and absence of CCCP and different nanoparticles (Ag, CU and ZnO). The fluorescence intensity was recorded at excitation and emission wavelengths of 360 nm and 460 nm, respectively, over 120 min incubation periodBack to article page