Biogenic synthesis
of silver nanoparticles using Artemisia nilagirica leaf extract and their antimicrobial
activity against pathogenic bacteria
Mengane S.K.
Res. J. Chem. Environ.; Vol. 29(4); 68-74;
doi: https://doi.org/10.25303/294rjce068074; (2025)
Abstract
Silver nanoparticles (AgNPs) were fabricated through green method using Artemisia
nilagirica leaf extract as a reducing and capping agent. Here, rapid synthesis of
AgNPs using leaf extract of Artimicia nilagirica has been claimed which is just
10 min at room temperature. The obtained nanoparticles were characterized by UV-visible
(UV-Vis), XRD, FTIR and FE-SEM. The absorption band centered at 434 nm in UV-Vis
reflects surface plasmon resonance (SPR) of AgNPs. XRD analysis revealed that biosynthesized
AgNPs are crystalline in nature with the face centered cubic structure. FTIR showed
nanoparticles capped with plant compounds. FE-SEM showed the spherical nature of
the AgNPs within a size range of 20-30 nm.
The process of nanoparticles preparation is green, rapid, environmentally benign
and cost effective. These biologically synthesized nanoparticles were also proved
to exhibit excellent antibacterial activity against Staphylococcus aureus and Escherichia
coli. The synthesized AgNPs from leaf extract of Artimicia nilagirica shows 14 mm
zone of inhibition against E. coli and 12 mm for S. aureus.