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Eco-friendly Synthesis of Silver Nanoparticles from Persea americana: Evaluation of Nonlinear Optical Behaviour and Antibacterial Efficacy
Corresponding Author(s) : Vijayakumar Sadasivan Nair
Asian Journal of Chemistry,
Vol. 37 No. 11 (2025): Vol 37 Issue 11, 2025
Abstract
Plant-mediated synthesis of metal nanoparticles is widely employed for intended applications and is regarded as a dependable green method to reduce the use of hazardous chemicals. This study details a straightforward, economical and environmentally friendly method for synthesizing highly stable silver nanoparticles (AgNPs) using Persia americana (Avocado) leaf extract as both a stabilizing and reducing agent. Distinct peaks corresponding to the cubic silver crystallographic planes were confirmed by the X-ray diffraction (XRD) patterns. The surface plasmon resonance band of synthesized AgNPs was observed at around 452 nm using UV-Vis spectral analysis. FT-IR spectroscopy identified the plant extract’s biomolecules responsible for the effective stabilization and reduction of AgNPs. Comprehensive nonlinear optical behaviour studies were conducted using a single-beam Z-scan setup with Nd: YAG laser source, revealing significant optical limiting properties with a threshold value of 5.97 J/cm2. Furthermore, the prepared AgNPs demonstrated good antimicrobial effects against human pathogens, specifically P. mirabilis. These findings suggest that the as-synthesized nanosilver particles are promising candidates for optoelectronic devices and various antimicrobial applications.
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S. Iravani, Green Chem., 13, 2638 (2011); https://doi.org/10.1039/C1GC15386B
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M.M. Khalil, E.H. Ismail, K.Z. El-Baghdady and D. Mohamed, Arab. J. Chem., 7, 1131 (2014); https://doi.org/10.1016/j.arabjc.2013.04.007
P. Papolu and A. Bhogi, Mater. Today Proc., 92, 924 (2023); https://doi.org/10.1016/j.matpr.2023.04.544
P. Mulvaney, Langmuir, 12, 788 (1996); https://doi.org/10.1021/la9502711
M. Sheik-Bahae, A.A. Said, T.H. Wei, D.J. Hagan and E.W. Van Stryland, IEEE J. Quantum Electron., 26, 760 (1990); https://doi.org/10.1109/3.53394
F.Z. Henari and H. Manaa, Opt. Photon. J., 8, 235 (2018); https://doi.org/10.4236/opj.2018.87020
S. Chitrambalam, S. Abraham, V.K. Rastogi and I.H. Joe, Chem. Phys. Lett., 754, 137648 (2020); https://doi.org/10.1016/j.cplett.2020.137648
A.A. Noble and I.H. Joe, Surf. Interfaces, 44, 103603 (2024); https://doi.org/10.1016/j.surfin.2023.103603
K. Ozga, M. Oyama, M. Szota, M. Nabiałek, I.V. Kityk, A. Ślęzak, A.A. Umar and K. Nouneh, J. Alloys Compd., 509, S424 (2011); https://doi.org/10.1016/j.jallcom.2010.12.107
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D. Dini, M.J.F. Calvete and M. Hanack, Chem. Rev., 116, 13043 (2016); https://doi.org/10.1021/acs.chemrev.6b00033
