Studies on the green synthesis of silver nanoparticles and their characterization using leaf extracts of Terminalia chebula (original) (raw)
2015, Indian Journal of Applied Research
The nanotechnology springs from advancements in material science-the ability to fabricate nanoscale materials in an uniform and reliable manner. Silver had been used since time immemorial in different chemical form to treat burns, wounds and several infections caused by pathogenic bacteria. Advancement of biological process of nanoparticles synthesis is evolving into a key area of nanotechnology. A green rapid biogenic synthesis of silver nanoparticles (Ag NPs) using ethyl acetate leaf extract of was Terminalia chebula demonstrated in the present study. The formation of silver nanoparticles was confirmed by Surface Plasmon Resonance (SPR) at 420nm using UVvisible spectrophotometer. The reduction of silver ions to silver nanoparticles by Terminalia chebula leaf extract was evidenced by metal-plant interactions. Plants responded to heavy metal stress by metal complexation process like production of phytochelations or by other metal chelating peptides. Synthesized nanoparticles were characterized using UV-visible spectroscopy, Fourier Transformed Infra Red spectroscopy (FT-IR), powder X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Elemental Data Analysis (EDAX) and Transmission Electron Microscopy (TEM). The stability of silver nanoparticles was checked and found to be stable at 250C. The approach of green synthesis seemed to be cost efficient, eco-friendly and easy alternative to conventional methods of silver nanoparticles synthesis.
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