Green synthesis of silver nanoparticles using Terminalia chebula extract at room temperature and their antimicrobial studies
Language: 
English
Abstract: 

A green rapid biogenic synthesis of silver nanoparticles (Ag NPs) using Terminalia chebula (T. chebula) aqueous extract was demonstrated in this present study. The formation of silver nanoparticles was confirmed by Surface Plasmon Resonance (SPR) at 452 nm using UV-visible spectrophotometer. The reduction of silver ions to silver nanoparticles by T. chebula extract was completed within 20 min which was evidenced potentiometrically. Synthesised nanoparticles were characterised using UV-vis spectroscopy, Fourier transformed infrared spectroscopy (FT-IR), powder X-ray diffraction (XRD), transmission electron microscopy (TEM) and atomic force microscopy (AFM). The hydrolysable tannins such as di/tri-galloyl-glucose present in the extract were hydrolyzed to gallic acid and glucose that served as reductant while oxidised polyphenols acted as stabilizers. In addition, it showed good antimicrobial activity towards both Gram-positive bacteria (S. aureus ATCC 25923) and Gram-negative bacteria (E. coli ATCC 25922). Industrially it may be a smart option for the preparation of silver nanoparticles.

Author(s): 
Mohan Kumar, Kesarla
Sinha, Madhulika
Mandal, Badal Kumar
Ghosh, Asit Ranjan
Siva Kumar, Koppala
Sreedhara Reddy, Pamanji
Item Type: 
Journal Article
Publication Title: 
Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
Journal Abbreviation: 
Spectrochim Acta A Mol Biomol Spectrosc
Publication Date: 
2012-06
Publication Year: 
2012
Pages: 
228-233
Volume: 
91
ISSN: 
1873-3557
DOI: 
10.1016/j.saa.2012.02.001
Library Catalog: 
PubMed
Extra: 
PMID: 22381795

Turabian/Chicago Citation

Kesarla Mohan Kumar, Madhulika Sinha, Badal Kumar Mandal, Asit Ranjan Ghosh, Koppala Siva Kumar and Pamanji Sreedhara Reddy. 2012-06. "Green synthesis of silver nanoparticles using Terminalia chebula extract at room temperature and their antimicrobial studies." Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy 91: 228-233. 10.1016/j.saa.2012.02.001.

Wikipedia Citation

<ref> {{Cite journal | doi = 10.1016/j.saa.2012.02.001 | issn = 1873-3557 | volume = 91 | pages = 228-233 | last = Mohan Kumar | first = Kesarla | coauthors = Sinha, Madhulika, Mandal, Badal Kumar, Ghosh, Asit Ranjan, Siva Kumar, Koppala, Sreedhara Reddy, Pamanji | title = Green synthesis of silver nanoparticles using Terminalia chebula extract at room temperature and their antimicrobial studies | journal = Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy | date = 2012-06 | pmid = | pmc = }} </ref>