Laser-Assisted Synthesis of Mn_0.50Zn_0.50Fe₂O₄ Nanomaterial: Characterization and In Vitro Inhibition Activity towards Bacillus subtilis Biofilm

Figure 4

Phase contrast microscopic view of inhibition of Bacillus subtilis biofilm by Mn_0.5Zn_0.5Fe₂O₄ nanoparticles at 100x ((a) controlled (native) Bacillus subtilis biofilm; (b) Rifampicin treated control; (c) biofilm treated by 5.0 μg of Mn_0.5Zn_0.5Fe₂O₄ nanoparticles dissolved in 1 mL of DMSO; (d) biofilm treated by 2.5 μg of Mn_0.5Zn_0.5Fe₂O₄ nanoparticles dissolved in 1 mL of DMSO).

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