Antibiotic resistance is increasing to dangerous levels across the globe. A growing list of bacterial infections that lead to blood poisoning or foodborne diseases are becoming challenging to treat due to the loss of antibiotic efficacy. Studies on the antibacterial performance of Ag nanoparticles and other transitional metal oxides have gained increasing attention as an alternative therapeutic strategy. In this study, NiCo₂O₄ and Ag/NiCo₂O₄ composites with different contents of Ag were synthesized through a simple co-precipitation method. The composites were assessed via transmission electron microscopy (TEM), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The results demonstrated that the morphology of NiCo₂O₄ was unaffected by the addition of Ag. The NiCo₂O₄ and Ag/NiCo₂O₄ composites with different contents of Ag showed a suitable size of approximately 10 nm. The NiCo₂O₄ and Ag/NiCo₂O₄ composites displayed potent activity against a range of disease-causing bacteria. The Ag/NiCo₂O₄ composites with low Ag content displayed weak antibacterial activity.

抗生素耐药性在全球范围内已上升至危险水平。由于抗生素功效的丧失，导致血液中毒或食源性疾病的越来越多的细菌感染正变得难以治疗。作为替代治疗策略，对银纳米颗粒和其他过渡金属氧化物的抗菌性能的研究日益受到关注。本研究通过简单的共沉淀法合成了不同Ag含量的NiCo ₂ O ₄和Ag / NiCo ₂ O ₄复合材料。通过透射电子显微镜（TEM），X射线衍射（XRD）和扫描电子显微镜（SEM）评估复合材料。结果表明，NiCo的形态Ag的添加不影响₂ O ₄。Ag含量不同的NiCo ₂ O ₄和Ag / NiCo ₂ O ₄复合材料的合适尺寸约为10nm。NiCo ₂ O ₄和Ag / NiCo ₂ O ₄复合材料显示出对多种致病细菌的有效活性。Ag含量低的Ag / NiCo ₂ O ₄复合材料表现出较弱的抗菌活性。