GINGER (ZINGIBER OFFICINALE) RHIZOME EXTRACT-MEDIATED GREEN SYNTHESIS OF SILVER NANOPARTICLES AND ITS CHARACTERIZATION
Lorenbeni Kikon, Naorem Chanu Sumedha* and K. Rajaganesh
ABSTRACT
The utilization of medicinal plants for synthesizing nanomaterials is gaining momentum due to its environmentally friendly characteristics and cost-effectiveness. In the present study, silver nanoparticles (AgNPs) were synthesised by utilising the rhizome extract of Zingiber officinale as a reducing and stabilising agent. The synthesis involved mixing a 1mM silver nitrate solution with an aqueous extract of ginger rhizome in a ratio of 10:1 under constant stirring at a temperature of 80oC. The resulting AgNPs were characterized using UV-visible spectroscopy, Fourier Transform Infrared Spectroscopy (FTIR), and Scanning Electron Microscopy (SEM). The AgNPs exhibited a dark brown color with maximum absorbance observed at 427 nm. The FTIR spectrum displayed strong and distinctive peaks at 3339, 3250, 2124, 2072 and 1632 cm-1, indicating the involvement of biomolecules in capping and stabilizing the particles. These nanoparticles exhibited a spherical shape with sizes ranging from 10-100 nm.
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