Biosynthesis of silver nanoparticles using green tea leaf extract and their structural and optical analysis

Senthamizh Selvi S, V Ilangovan and Roopakala Kottayi *

Department of Physics, Kanchi Mamunivar Govt. Institute for PG Studies and Research, Puducherry-605 008, India.
 
Research Article
International Journal of Science and Research Archive, 2024, 12(01), 211–215.
Article DOI: 10.30574/ijsra.2024.12.1.0786
Publication history: 
Received on 22 March 2024; revised on 02 May 2024; accepted on 04 May 2024
 
Abstract: 
In the present study, silver nanoparticles (Ag NPs) were synthesized by biosynthesis method using Green tea leaf extract. Biosynthesis is an easy, economical, and environmentally friendly method to prepare NPs. The synthesized NPs were characterized by using an X-ray diffraction spectrum (XRD), UV-Vis spectra, Tauc plot and Dynamic light scattering spectrum analysis. The XRD results of biosynthesized Ag NPs show that the particles are crystalline and face-cantered cubical in shape, with an average size of 14 nm. UV-visible spectra studies and Tauc plot analysis confirm the excellent optical properties of the Ag NPs. Due to these outstanding qualities, we anticipated that the use of green-produced Ag NPs would result in an exponential increase in various applications. Ag NPs exhibit cytotoxicity and anticancer characteristics, antibacterial, antioxidant, and antifungal activity.
 
Keywords: 
Silver nanoparticles; Biosynthesis; Light scattering; Optical properties; Tauc plot; Antioxidant
 
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