Fig. 4

FE-SEM micrographs of bacterial cells after exposure to zinc oxide nanorods-decorated GNPs. S. aureus cells incubated with a H₂O_dd or b ZNGs suspension (50 µg/mL). P. aeruginosa c untreated cells are shown in comparison to d the same bacteria exposed to ZNGs (50 µg/mL) (scale bar 400 nm)