<p>This work highlights the eco-friendly synthesis of silver oxide nanoparticles along with Zn/Mg co-doped silver oxide nanoparticles using <i>Citrus hystrix</i> peel extract as a natural reducing and stabilizing agent. SEM analysis demonstrated that the pure silver oxide nanoparticles possessed a rough, aggregated surface with irregular particle shapes, whereas the doped nanocomposites exhibited a comparatively porous morphology. The elemental composition of the prepared catalysts was verified by EDX analysis. TEM further confirmed the successful formation of nanoparticles, offering detailed information regarding their morphology, size distribution, and structural uniformity. FTIR spectra were recorded to identify the functional groups involved in nanoparticle formation, while UV–Vis spectroscopy was employed to calculate the energy band gap. XRD analysis confirmed the crystalline structure and phase purity of the synthesized materials. Moreover, the antibacterial potential of the catalysts was tested using the agar well diffusion method, which revealed their inhibitory activity against Gram-positive bacteria (<i>Bacillus</i>, <i>Staphylococcus aureus</i>) as well as Gram-negative bacteria (<i>Klebsiella pneumoniae</i>, <i>Escherichia coli</i>).The produced biocatalyst has exhibited antioxidant activity by employing DPPH radical Scavenging activity. The as-synthesized biocatalyst was evaluated for anticancer activity against HeLa cancer cell.</p>

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Phyto-mediated synthesis of Zn/Mg co-doped Ag₂O nanocomposites and their antibacterial, antioxidant, and cytotoxic activities

  • M. M. Divyasri,
  • A. Thirugnanasundar

摘要

This work highlights the eco-friendly synthesis of silver oxide nanoparticles along with Zn/Mg co-doped silver oxide nanoparticles using Citrus hystrix peel extract as a natural reducing and stabilizing agent. SEM analysis demonstrated that the pure silver oxide nanoparticles possessed a rough, aggregated surface with irregular particle shapes, whereas the doped nanocomposites exhibited a comparatively porous morphology. The elemental composition of the prepared catalysts was verified by EDX analysis. TEM further confirmed the successful formation of nanoparticles, offering detailed information regarding their morphology, size distribution, and structural uniformity. FTIR spectra were recorded to identify the functional groups involved in nanoparticle formation, while UV–Vis spectroscopy was employed to calculate the energy band gap. XRD analysis confirmed the crystalline structure and phase purity of the synthesized materials. Moreover, the antibacterial potential of the catalysts was tested using the agar well diffusion method, which revealed their inhibitory activity against Gram-positive bacteria (Bacillus, Staphylococcus aureus) as well as Gram-negative bacteria (Klebsiella pneumoniae, Escherichia coli).The produced biocatalyst has exhibited antioxidant activity by employing DPPH radical Scavenging activity. The as-synthesized biocatalyst was evaluated for anticancer activity against HeLa cancer cell.