Co-assembled ZnO-Fe2O3x-CuOx nano-oxide materials for antibacterial protection

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dc.contributor.authorRevaprasadu, Neerish
dc.contributor.authorOwonubi, S.J.
dc.contributor.authorAteba, Collins N.
dc.date.accessioned2025-11-17T06:23:47Z
dc.date.available2025-11-17T06:23:47Z
dc.date.issued2020
dc.departmentNameChemistry
dc.description.abstractMetal 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 ¼ 0.1; x ¼ 0.5) with 3.38 eV and 3.37 eV; and ZnO-FeOx-CuOx (x ¼ 0.1; x ¼ 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.pneumonia growth being the most inhibited, with MONPs treatments CuO > ZnOFeO0.5CuO0.5 > CuOFeO0.5 > ZnOFeO0.1CuO0.1 >Fe2O3 > ZnOFeO0.5 > ZnO.
dc.facultyFaculty of Science, Agriculture and Engineering
dc.format.preprintNo
dc.identifier.citationOwonubi, S. J., Ateba, C. N. and Revaprasadu, N. 2020. Co-assembled ZnO-Fe2O3x-CuOx nano-oxide materials for antibacterial protection. Phosphorus, Sulfur, and Silicon and the Related Elements, 195(12), pp. 981–987. doi: 10.1080/10426507.2020.1764955.
dc.identifier.issn1563-5325 (online)
dc.identifier.urihttps://doi.org/10.1080/10426507.2020.1764955
dc.identifier.urihttp://hdl.handle.net/10530/58231
dc.issuenumber195 / 12
dc.pages981-987
dc.peerreviewedYes
dc.publisherTaylor & Francis
dc.subjectMetal oxide
dc.subjectNanoparticles
dc.subjectCo-precipitation
dc.subjectAntibacterial
dc.subjectZinc oxide
dc.subjectCopper oxide
dc.subjectHematite
dc.titleCo-assembled ZnO-Fe2O3x-CuOx nano-oxide materials for antibacterial protection
dc.title.journalPhosphorus, Sulfur and Silicon and the Related Elements
dc.typeJournal Article
dspace.entity.typePublication
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