In the present study, synthesis, characterization, and the antibacterial activity of silver nanoparticles from native isolate of Corynebacterium glutamicum has been reported. Silver nanoparticles were synthesized by challenging the dried biomass of C. glutamicum with aqueous diamine silver ([Ag (NH3)2]+) containing 1 mM AgNO3. Synthesized silver nanoparticles (AgNPs) were characterized by ultra...

Emergence of resistant microbes to conventional antibiotics and increased emphasis on health-care costs has raised the concern for the development of new effective antimicrobial reagents. Silver nanoparticles being an excellent broad-spectrum antibacterial agent could be considered as a suitable alternative for existing antibiotic. This study demonstrates the extra-cellular synthesis of stable ...

introduction: denture stomatitis is a common complication in patients wearing dentures and preventing the proliferation of related microorganisms and their induced infections is noteworthy. the aim of the present study was to assess the antimicrobial effect of acrylic resins containing various concentrations of silver nanoparticles, on candida albicans and streptococcus mutans. materials and me...

conclusions the current study results showed that silver nanoparticles produced by plantago ovata seed extract had an antibacterial effect on staphylococcus aureus which was resistant against cefixime, trimethoprim-sulfamethoxazole and penicillin. results the silver nanoparticles revealed gaussian distributions with the average diameter of 13 nm with some deviations, and results showed that the...

background: nanoparticles have become one of the leading technologies over the past two years. the extensive use of nanoparticles has raised great concern about their occupational fate and biological effects. with an increase in the production and use of nanomaterial, it is more likely to get exposed to them occupationally and environmentally. objective: to assess the toxicity of silver nanopar...

Interaction of Chrysosporium sps. and Aspergillus sps. with aqueous AgNO3 was investigated for synthesis of silver nanoparticles. Biological reduction and extracellular synthesis of silver nanoparticles in 28 hour at 270C and pH 5.6 was done. The nanometallic dispersion was characterized by surface plasmon absorbance measuring at 424 – 530 nm for Ag nanop...

background: the increasing use of nanomaterials and nanoproducts has increased the possibility of contamination of the environment, which may have adverse effects on different organisms. the aim of this study was to evaluate the effects of silver nanoparticles on histopathology and gill ultrastructure of zebrafish (danio rerio) under laboratory conditions. methods: zebrafish were exposed to fou...

The silver nanoparticles are synthesized by using microbial reduction of silver ions in the presence of fungus Aspergillus flavus . The fungus , Aspergillus flavus when challenged with silver nitrate solution accumulated silver nanoparticles on the surface of its cell wall in 96 hr . The silver nanoparticles synthesized are characterized by using UV-spectroscopy. An absorption peak at 420 nm in...

recently there has been fabulous excitement in the nano-biotechnological area for the study of nanoparticles synthesis using some natural biological system, which has led the growth advanced nanomaterials. this intention made us to assess the biologically synthesized silver nanoparticles from the leaf of suaeda monoica (s.monoica) using 1 mm silver nitrate. the leaf extract of s.monoica incubat...