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Co-assembled ZnO-Fe2O3x-CuOx nano-oxide materials for antibacterial protection
Phosphorus, Sulfur, and Silicon and the Related Elements ( IF 1.3 ) Pub Date : 2020-06-05 , DOI: 10.1080/10426507.2020.1764955
S. J. Owonubi 1 , Collins N. Ateba 2 , Neerish Revaprasadu 1
Affiliation  

Abstract Metal oxide nanoparticles (MONPs) have been increasingly reported to possess diverse industrial and biomedical applications. Herein, we synthesized secondary (CuO, Fe2O3 (FeO), ZnO), ternary (ZnO/CuO-FeOx) and quaternary (ZnO-CuO-FeOx) co-assembled core-shelled MONPs by (co-)precipitation technique, characterized the synthesized MONPs and consequently investigated their antibacterial capacity. The UV-Vis absorption spectra of the prepared MONPs presented experimental band gaps; ZnO of 3.36 eV; ZnO-FeOx (x = 0.1; x = 0.5) with 3.38 eV and 3.37 eV; and ZnO-FeOx-CuOx (x = 0.1; x = 0.5) of 3.36 eV and 3.36 eV band gaps respectively. Thermogravimetric analysis revealed the stability of the prepared MONPs, by the presented total mass lost (%): ZnOFeO0.5 (1.34) > ZnOFeO0.1 (1.93) > ZnOFeO0.1CuO0.1 (2.12) > ZnOFeO0.5CuO0.5 (2.34) > CuOFeO0.1 (3.78) > CuOFeO0.5 (4.25) > Fe2O3 (4.44) > CuO (6.37) > ZnO (8.69). The XRD peak positions of the secondary MONPs prepared presented hexagonal structures for ZnO, monoclinic structures for CuO and rhombohedral structures for Fe2O3 without identified impurity peaks. Finally, the co-assembled MONPs prepared showed that they possessed varied efficiency for protection from different bacterial strains, with Staphylococcus.peumonia growth being the most inhibited, with MONPs treatments CuO > ZnOFeO0.5CuO0.5 > CuOFeO0.5 > ZnOFeO0.1CuO0.1 > Fe2O3 > ZnOFeO0.5 > ZnO. GRAPHICAL ABSTRACT

中文翻译:

用于抗菌保护的共组装ZnO-Fe2O3x-CuOx纳米氧化物材料

摘要金属氧化物纳米粒子 (MONP) 越来越多地被报道具有多种工业和生物医学应用。在此,我们通过(共)沉淀技术合成了二级(CuO、Fe2O3(FeO)、ZnO)、三元(ZnO/CuO-FeOx)和四元(ZnO-CuO-FeOx)共组装的核壳MONPs,表征了合成了 MONPs 并因此研究了它们的抗菌能力。制备的MONPs的UV-Vis吸收光谱呈现实验带隙;ZnO 为 3.36 eV;ZnO-FeOx (x = 0.1; x = 0.5) 具有 3.38 eV 和 3.37 eV;和 ZnO-FeOx-CuOx (x = 0.1; x = 0.5) 的带隙分别为 3.36 eV 和 3.36 eV。热重分析揭示了制备的 MONP 的稳定性,通过呈现的总质量损失 (%):ZnOFeO0.5 (1.34) > ZnOFeO0.1 (1.93) > ZnOFeO0.1CuO0.1 (2.12) > ZnOFeO0.5CuO0.5 (2.34) ) > CuOFeO0.1 (3.78) > CuOFeO0.5 (4.25) > Fe2O3 (4.44) > CuO (6.37) > ZnO (8.69)。所制备的二级 MONP 的 XRD 峰位置呈现出 ZnO 的六方结构、CuO 的单斜结构和 Fe2O3 的菱形结构,但未发现杂质峰。最后,制备的共组装 MONPs 表明它们对不同细菌菌株的保护效率各不相同,其中肺炎葡萄球菌的生长受到最抑制,MONPs 处理 CuO > ZnOFeO0.5CuO0.5 > CuOFeO0.5 > ZnOFeO0.1CuO0。 1 > Fe2O3 > ZnOFeO0.5 > ZnO。图形概要 CuO 的单斜结构和 Fe2O3 的菱形结构,没有确定的杂质峰。最后,制备的共组装 MONPs 表明它们对不同细菌菌株的保护效率各不相同,其中肺炎葡萄球菌的生长受到最抑制,MONPs 处理 CuO > ZnOFeO0.5CuO0.5 > CuOFeO0.5 > ZnOFeO0.1CuO0。 1 > Fe2O3 > ZnOFeO0.5 > ZnO。图形概要 CuO 的单斜结构和 Fe2O3 的菱形结构,没有确定的杂质峰。最后,制备的共组装 MONPs 表明它们对不同细菌菌株的保护效率各不相同,其中肺炎葡萄球菌的生长受到最抑制,MONPs 处理 CuO > ZnOFeO0.5CuO0.5 > CuOFeO0.5 > ZnOFeO0.1CuO0。 1 > Fe2O3 > ZnOFeO0.5 > ZnO。图形概要
更新日期:2020-06-05
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