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HomeJournal of Nano ResearchJournal of Nano Research Vol. 68Characterization of Stress-Tolerant Bacteria for...

Characterization of Stress-Tolerant Bacteria for the Biosynthesis of Silver Nanoparticles and their Applications

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Abstract:

The biogenesis of silver nanoparticles by microbes has become an essential branch in the field of nanotechnology because of its safe, environment-friendly, economical, and time-saving nature. In the current research work, we have screened some stress-tolerant bacteria based on pH, temperature, salt-tolerant efficacy and further utilized them for the synthesis of silver nanoparticles. The test bacterium was isolated from the soil sample through the serial dilution method on nutrient agar media (NAM). Based on identification using morphological characteristics, biochemical analysis, and 16srRNA sequencing bacteria were identified as Bacillus sp. The extracellular biosynthesis approach was used for synthesizing silver nanoparticles by Bacillus sp. Characterization of synthesized silver nanoparticles was done by using UV-Visible Spectrophotometer and absorbance peak was recorded at 430nm. Transmission electron microscopy (TEM) study of synthesized nanoparticles showed the shape of nanoparticles was spherical and hexagonal with a size ranging from 10nm-47nm. For the extracellular biosynthesis of silver nanoparticles pH was set to 7.0 and temperature at 37°C.

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Journal of Nano Research Vol. 68

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Periodical:

Journal of Nano Research (Volume 68)

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70-80

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https://doi.org/10.4028/www.scientific.net/JNanoR.68.70

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Online since:

June 2021

Authors:

Amrisha Srivastava, Puneet Singh Chauhan, Rachana Singh*

Keywords:

16srRNA Sequencing, Bactericidal Activity, Biological Synthesis, Extracellular Synthesis, Silver Nano-Bactericides, Stress-Tolerant

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© 2021 Trans Tech Publications Ltd. All Rights Reserved

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