alexa Detection of Pathogenic Escherichia coli (E. coli) Usin
ISSN: 2157-7048

Journal of Chemical Engineering & Process Technology
Open Access

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Research Article

Detection of Pathogenic Escherichia coli (E. coli) Using Robust Silver and Gold Nanoparticles

Boken J1*, Dalela S2, Sharma CK3 and Kumar D4
1Department of Physics, Banasthali Vidyapith, Rajasthan, India
2Department of Pure and Applied Physics, University of Kota, Kota, Rajasthan, India
3Assistant Professor, Department of Bioscience & Biotechnology, Banasthali University, Rajasthan, India
4Department of Chemistry, Banasthali Vidyapith, Rajasthan, India
Corresponding Author : Boken J
1Department of Physics, Banasthali University, Banasthali
Rajasthan-304022, India
Tel: +91-992810802
E-mail:[email protected]
Received July 23, 2013; Accepted September 27, 2013; Published September 30, 2013
Citation: Boken J, Dalela S, Sharma CK, Kumar D (2013) Detection of Pathogenic Escherichia coli (E.coli) Using Robust Silver and Gold Nanoparticles. J Chem Eng Process Technol 4: 175. doi:10.4172/2157-7048.1000175
Copyright: © 2013 Boken J, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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The paper deals with differently synthesized robust metal nanoparticles using chemical synthesis approach for detection of a new pathogenic strain E. coli in water sample. The reactions have been completed using aqueous metal salt solution and trisodium citrate as a capping agent to obtain nanoparticles. The nanoparticles and their interaction against microorganisms have been characterized using UV-Vis spectroscopy and Transmission Electron Microscopy (TEM). For different concentration of sodium borohydride, surface plasmon resonance peaks have been obtained at 390 nm to 402 nm for silver nanoparticles and 518 nm to 524 nm for gold nanoparticles. It has been observed to be shifted from 520 nm to 527 nm and 395 nm to 408 nm for gold and silver nanoparticles after the interaction with E. coli respectively. Silver and gold nanoparticles have been synthesized at 80°C exhibited strong surface plasmon resonance peaks respectively at 433 nm and 529 nm. Remarkable shift have been noticed in surface plasma resonance peaks for small amount of E. coli added in the solution.

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