background: this study was performed to determine antifungal activity of silver nanoparticles (nano-ag) compared to voriconazole on clinical and standard strains of aspergillus fumigatus. materials and methods: inhibitory potency of nano-ag was determined using microtiter broth dilution method. susceptibility tests were performed against a. fumigatus isolated from bal (bronchoalveolar lavage) o...

an aqueous extract of pimpinella anisum was used for green synthesis of silver nanoparticles by bio reduction of an aqueous solution of silver nitrate. silver nanoparticles were characterized by uv–vis spectrometry, fourier transform infrared spectroscopy (ftir), x-ray diffraction (xrd) analysis, scanning electron microscopy (sem) and energy-dispersive x-ray analysis (edax). the increase in abs...

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...

Size-controlled and monodispersed silver nanoparticles were synthesized from an aqueous solution containing silver nitrate as a metal precursor, polyvinyl alcohol as a capping agent, isopropyl alcohol as hydrogen and hydroxyl radical scavengers, and deionized water as a solvent with a simple radiolytic method. The average particle size decreased with an increase in dose due to the domination of...

Recently, the synthesis of silver nanoparticles has become an important subject in the bionanotechnology field. Many different chemical and physical methods could be used for silver nanoparticles synthesis, but they are limited due to the usage of toxic chemicals and the production of dangerous by-products. However, the usage of plant extract for silver nanoparticles synthesis is a green single...

resonance light scattering (rls) intensity of silver nanoparticles in the presence of sodium dodecylsulphate was quenched on addition of sulfasalzine. the quenching extent was shown to be proportional to the sulfasalazine concentration. effect of different parameters such as ph, volume and kind of buffer, silver nanoparticles concentration, sodium dodecylsulphate (sds) concentration, and waitin...

the aim of this study was to assess the meat quality attributes of broiler chickens fed diets supplemented with silver nanoparticles coated on zeolite. a total of 375 one-day-old broilers was assigned in a completely randomized design to 1 of 5 treatment groups including: basal diet, basal diet supplemented with 1% zeolite, and basal diet supplemented with one of the three levels of zeolite coa...

objective(s): this study was aimed at investigating the synergy effects of aloe vera gel and silver nanoparticles on the healing rate of the cutting wounds. materials and methods: in order to determine the concentration of silver nanoparticles in aloe vera gel, the mbc methods were applied on the most common bacteria infecting wounds, staphylococcus aureus, escherichia coli, pseudomonas aerugin...

we have used lithium aluminum hydroxide reducing method of silver nitrate to prepare heterogeneous silver-silica nanocomposite particles with thiol and amino groups serving to bind the ag nanoparticles to the surfaces of the sio2 nanoparticles. we examined products of these reductions using ftir, sem, xrd and uv-vis. spectroscopy. the sio2 nanoparticles had diameters ranging from 70 to 90 nm; t...

the aim of this research was to improve quality and vase life of cut gladiolus flowers. the investigation was done with the effects of different concentrations of essential oil of thymol and zataria oil (50 and 100 mg l-1) and silver nanoparticles (3 and 5 mg l-1) and 8-hydroxyquinolin sulfate (300 and 400 mg l-1) with sucrose 3%. in addition, distilled water, ethanol 500 mgl-1 and sucrose 3% w...