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<p>Commercial wet wipes were used as an inexpensive template to create zinc oxide (ZnO) and copper oxide (CuO) nanoparticles (NPs) by the combustion technique. Regulated nucleation and growth were made possible by the steady precursor adsorption provided by the fibrous network of wipes. While surface and elemental analysis revealed distinctive morphological features, particle size distribution, and high purity, X-ray analysis verified the formation of phase-pure crystalline ZnO and CuO. Reduced band gaps (2.60&#xa0;eV for ZnO and 1.90&#xa0;eV for CuO) were found by UV-Vis absorption analyses, which were explained by defects related to oxygen vacancies during the templating process. CuO outperformed ZnO at higher dosages in the 2,2-Diphenyl-1-picrylhydrazyl (DPPH) assay, which showed concentration-dependent radical scavenging activity. There were notable dose-dependent inhibitory zones in the antibacterial efficacy against <i>S. aureus</i> and <i>E. coli</i>. In a concentration-dependent manner, ZnO and CuO NPs both prevented <i>S. aureus</i> and <i>E. coli</i> from forming biofilms. These results demonstrate the creative use of commercial wipes as long-term templates for the production of functional NPs with intriguing antibacterial properties.</p>

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Innovative use of commercial wipes as a template for the synthesis of ZnO and CuO nanoparticles via combustion method for antibacterial applications

  • 期刊论文

  • 发表日期：

    2026年1月7日

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  • Ali M. Ahmed,
  • Ghaiath A. Fadhil,
  • Muntadher I. Rahmah

摘要

Commercial wet wipes were used as an inexpensive template to create zinc oxide (ZnO) and copper oxide (CuO) nanoparticles (NPs) by the combustion technique. Regulated nucleation and growth were made possible by the steady precursor adsorption provided by the fibrous network of wipes. While surface and elemental analysis revealed distinctive morphological features, particle size distribution, and high purity, X-ray analysis verified the formation of phase-pure crystalline ZnO and CuO. Reduced band gaps (2.60 eV for ZnO and 1.90 eV for CuO) were found by UV-Vis absorption analyses, which were explained by defects related to oxygen vacancies during the templating process. CuO outperformed ZnO at higher dosages in the 2,2-Diphenyl-1-picrylhydrazyl (DPPH) assay, which showed concentration-dependent radical scavenging activity. There were notable dose-dependent inhibitory zones in the antibacterial efficacy against S. aureus and E. coli. In a concentration-dependent manner, ZnO and CuO NPs both prevented S. aureus and E. coli from forming biofilms. These results demonstrate the creative use of commercial wipes as long-term templates for the production of functional NPs with intriguing antibacterial properties.