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IJEB Vol.48(11) [November 2010] >

Title: Novel microbial route to synthesize silver nanoparticles using spore crystal mixture of Bacillus thuringiensis
Authors: Jain, Devendra
Kachhwaha, Sumita
Jain, Rohit
Srivastava, Garima
Kothari, S L
Keywords: Antimicrobial activity
Bacillus thuringiensis
Spore crystal mixture
Issue Date: Nov-2010
Publisher: NISCAIR-CSIR, India
Abstract: Metallic nanoparticles are traditionally synthesized by wet chemical techniques, where the chemicals used are often toxic and flammable. In the present study, the spore crystal mixture of Bacillus thuringiensis was used for the synthesis of silver nanoparticles. Nanoparticles were characterized using UV-Vis absorption spectroscopy, XRD and TEM. X-ray diffraction and TEM analysis showed the average particle size of 15 nm and mixed (cubic and hexagonal) structure. This is for the first time that any bacterial spore crystal mixture was used for the synthesis of nanoparticles. Further, these biologically synthesized nanoparticles were found to be highly toxic against different multi drug resistant human pathogenic bacteria.
Page(s): 1152-1156
CC License:  CC Attribution- Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1009 (Online); 0019-5189 (Print)
Source:IJEB Vol.48(11) [November 2010]

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