2. Mechanism of Silver Nanoparticles AgNPs Biosynthesis. Notwithstanding an incredibly large number of publi ions describing the AgNP synthesis via various groups of organisms such as bacteria fungi lichens algae and higher plants the mechanism of this process still remains completely unexplored.
In this present work microbial production of silver nanoparticles was investigated using the bacterial strain Escherichia coli. This research work implies the different medium composition for production of silver nanoparticles and characterization of particles by UV- visible spectrometer and laser diffraction particle size analyzer.
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Silver nanoparticles AgNPs are used as a nanomaterial most commonly in various consumer products . Synthesis of AgNPs can be performed in various parts of the microbial cells . The purified polysaccharides from plants animals and microflora sources were used as reducing and stabilizing agents for the synthesis of nanoparticles ...
The silver nanoparticles showed the antimicrobial activity against Gram positive and Gram negative bacteria. Vitex negundo L. was found to display strong potential for the synthesis of silver nanoparticles as antimicrobial agents by rapid reduction of silver ions Ag to Ag0 .
A silver resistant Bacillus sp. was isolated through exposure of an aqueous AgNO3 solution to the atmosphere. Silver nanoparticles were synthesized using these airborne bacteria Bacillus sp. . Transmission electron microscopy TEM and energy dispersive X-ray EDX analyses confirmed that silver nanoparticles of 5–15 nm in size were deposited in the periplasmic space of the bacterial cells ...
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Microbial Production of Silver Nanoparticles Kannan N and Selvaraj Subbalaxmi and Murty Ramachandra V 2010 Microbial Production of Silver Nanoparticles. Digest Journal of Nanomaterials and Biostructures 5 1 . pp. 135-140.
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Exposing Tacaribe virus to silver nanoparticles prior to infection facilitated virus uptake into the host cells whereas it was noticed that silver-treated virus showed significant reduction in viral RNA production and this finding demonstrated that silver nanoparticles are capable of inhibiting arenavirus infection in vitro .
In particular silver nanoparticles AgNPs have great potential in a broad range of appli ions as antimicrobial agents biomedical device coatings drug-delivery carriers imaging probes and diagnostic and optoelectronic platforms since they have discrete physical and optical properties and biochemical functionality tailored by diverse ...