Biological activity of biosynthesized silver nanoparticles from Syzygium aromaticum extract using green technology against pathogenic and antibiotic-resistant bacteria isolated from burn infections

Ahmed A.Kadhim Al- Khafaji
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Ahmed A.Kadhim Al- Khafaji: Genetic Engineering and Biotechnology Institute for Post-Graduation Studies, University of Baghdad, Iraq

Technium BioChemMed: Journal of Multidisciplinary Research, Biology, Chemistry and Medicine ISSN 2734 - 7990, 2025, vol. 13, 126-140

Abstract: The global surge in antimicrobial resistance (AMR), particularly among burn associated infections, necessitates novel therapeutic approaches. Silver nanoparticles (AgNPs), especially when biosynthesized using plant extracts, have shown promising antimicrobial potential. This study aimed to biosynthesize silver nanoparticles using aqueous extract of Syzygium aromaticum (clove), characterize their physicochemical properties, and evaluate their antibacterial and antibiofilm activities against multidrug-resistant (MDR) bacterial strains. Clove extract was prepared via aqueous extraction and used for the green synthesis of AgNPs. GC-MS analysis identified eugenol (77.53%) as the major bioactive component. The biosynthesized AgNPs were characterized using UV-Vis spectroscopy, FTIR, SEM, and XRD. Antibacterial efficacy was assessed against Proteus mirabilis, Staphylococcus aureus, Pseudomonas aeruginosa, and Klebsiella pneumoniae using the disk diffusion method, MIC assay, and biofilm inhibition assay. The synthesized AgNPs showed a surface plasmon resonance peak at 435 nm and were predominantly spherical with diameters ranging from 38–79 nm. FTIR revealed the presence of functional groups responsible for nanoparticle reduction and stabilization. Compared to clove extract alone, AgNPs demonstrated significantly greater antibacterial activity (p

Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:tec:bioche:ojs:13133

DOI: 10.47577/biochemmed.v13i.13133

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