Developing effective and low-cost enzyme-like nanomaterials to kill bacteria is vital for human health. Herein, nanorod-assembled NiCo2O4microspheres were prepared though a facile hydrothermal method, andshowed highly enhanced peroxidase-like activity compared to pure Co3O4due to its large surface area and abundant active sites. The NiCo2O4possess the ability to catalyze H2O2to generate large amounts of •O2-, which can be used for bacteriostatic applications. In particular, the antibacterial system combining the spiky NiCo2O4particles and a low concentration of H2O2(100μM) exhibits an excellent bacteriostatic efficiency against bothEscherichia coli(94.44%) andStaphylococcus aureus(93.45%).
Keywords: NiCo2O4; antibacterial application; biomimetic; peroxidase-like nanozyme; porous materials.
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