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SEM images showing biofilms of the bacteria established on the surface of polystyrene plates. (A) In the absence of nanoparticles; (B) incubated with chitosan-coated iron oxide nanoparticles at 500 µg/mL; (C) incubated with chitosan-coated iron oxide nanoparticles at 4 mg/mL.
Abbreviation: SEM, scanning electron microscopy.
