نتایج جستجو برای: silver nitrate
تعداد نتایج: 76761 فیلتر نتایج به سال:
OBJECTIVES This study evaluated the effect of the application mode on the microtensile resin-dentin bond strength (microTBS) and silver nitrate uptake (SNU) of three one-step self-etch adhesives systems (Clearfil S3 Bond [S3], Xeno III [XE] and Adper Prompt L-Pop [AD]). MATERIALS AND METHODS The occlusal enamel of 30 caries-free extracted molars was removed with a slow-speed diamond saw under...
Introduction: Currently, developing new antibacterial drugs as alternative antibiotics is a very active area of research, due to widspreading widespread prevalence of resistant strains of microorganisms. This work intends to investigate of antibacterial properties and influence on immune blood cells of the silver-based compound hexamethylenetetramine (methenamine) silver nitrate with general fo...
We report on the photoconductive response of nanostructured sol-gel films in function of the silver nitrate concentration (ions and colloids). Silver colloids were obtained by spontaneous reduction process of Ag+ ions to Ag(0). 2-d hexagonal nanosructured sol-gel thin films were prepared by dip-coating method using the non-ionic diblock copolymer Brij58 to produce channels into the film, which ...
AIMS Silver nanoparticles exhibit unique antibacterial properties that make these ideal candidates for biological and medical applications. We utilized a clean method involving a single synthetic step to prepare silver nanoparticles that exhibit antimicrobial activity. MATERIALS & METHODS These nanoparticles were prepared by reducing silver nitrate with diaminopyridinylated heparin (DAPHP) an...
In this paper we have reported the biosynthesis of silver nanoparticles using Penicillium sp. was isolated from the soil sample collected from Pallavakam beach of Chennai, Tamil Nadu India. When the fungal biomass was challenged with 1mM Silver nitrate (AgNO3) results in the change of solution color in to dark brown shows the formation of Silver nanoparticles(SNP).These Silver nanoparticles wer...
Preparation of silver colloids with improved uniformity and stable surface-enhanced Raman scattering
Silver colloids of uniform shape and size are prepared by a two-step reduction. Small silver particles form initially by the rapid reduction of silver nitrate with sodium citrate at 100°C and then grow at 92°C. The reaction processes and resulting silver colloids are characterized by transmission electron microscopy, ultraviolet-visible absorption spectrophotometry, zeta-potential measurements,...
A 3D-glass-ceramic scaffold for bone tissue engineering with an interconnected macroporous network of pores was doped with silver ions in order to confer antibacterial properties. For this purpose, silver ions were selectively added to the scaffold surfaces through ion-exchange using an aqueous silver nitrate solution. The silver-doped scaffolds were characterized by means of leaching, in vitro...
E M F measurements were performed on a chemical cell containing a silver and a nitrate electrode. The systems N a N 0 3 + A g N 0 3 , L i N 0 3 + A g N 0 3 , and pure A g N 0 3 were investigated in a temperature range of 240 ° C to 310 ° C and in the total concentration range permitted by the phase diagram. We f ound a linear dependence of the E M F on temperature. Six constants, characteristic...
Gerbera(Gerbera jamesonii) from the family of Asteraceae is regarded as one of the best cut flowers in the world. Despite of the publicity of Gerbera’s cut flowers, they have a short postharvest life. The objective of the present study was to study the replacement feasibility and the comparison of thymol (isolated from zataria), and essential oils of peppermint and rosemary (200, 400 and 600 mg...
Objective(s): A combination of biological and microemulsion methods was used to synthesize silver nanoparticles for the first time. The applied method could be referred to as the biomicroemulsion method, which has the advantages of both biological and the microemulsion methods.Materials and Methods: In the present study, silver nanoparticles were synthesized in a water-in-oil biomicroemul...
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