نتایج جستجو برای: 1 and silver nanoparticles with concentrationsof 5
تعداد نتایج: 18885093 فیلتر نتایج به سال:
Objective(s):Electromagnetic radiations which have lethal effects on the living cells are currently also considered as a disinfective physical agent. Materials and Methods: In this investigation, silver nanoparticles were applied to enhance the lethal action of low powers (100 and 180 W) of 2450 MHz electromagnetic radiation especially against Escherichia coli ATCC 8739. Silver nanoparticles ...
Biological synthesis of silver nanoparticles using microorganisms has received profound interest because of their potential to synthesize nanoparticles of various size, shape and morphology. In the current study, synthesis of silver nanoparticles by a bacterial strain (CS 11) isolated from heavy metal contaminated soil is reported. Molecular identification of the isolate showed it as a strain o...
in this study bactericidal activity of a malodor neutralizer containing silver nanoparticles manufactured in iran has been tested. for this purpose different concentrations of the product encounter with staphylococcus aureus, pseudomonas aeruginosa and bacillus cereus then the activity were evaluated in different contact times. the products containing at least 200 ppm of silver nanoparticles we...
OBJECTIVES Recurrent caries was partly ascribed to lack of antibacterial properties in composite resin. Silver and zinc nanoparticles are considered to be broad-spectrum antibacterial agents. The aim of the present study was to evaluate the antibacterial properties of composite resins containing 1% silver and zinc-oxide nanoparticles on Streptococcus mutans and Lactobacillus. MATERIALS AND ME...
conclusions silver nanoparticles were observed to have additive effects with essential oil against staphylococcus epidermidis and s. aureus. the obtained results suggest the need for further investigations of the antibacterial effects of the combination of silver nanoparticles with other plant extracts and essential oils. results the results of the experiment showed that the mic and minimal bac...
Background: The development of ecofriendly and non-toxic processes for synthesis of nanoparticles is one of the most important aspects of nanotechnology. Silver nanoparticles are widely used in medicine because of their antimicrobial and antibacterial properties. Methods: Biosynthesis of silver nanoparticles (AgNPs) using the aqueous extract of leaf, stem and root of Rhizophora mucronata as th...
Nanotechnology is an important field of modern research dealing with design, synthesis, and manipulation of particles structure ranging from approximately 1-100 nm. Tremendous growth in this emerging technology has opened novel fundamental and applied frontiers, including the synthesis of nanoscale materials and exploration or utilization of their exotic physicochemical and optoelectronic prope...
Background: Because most bacteria responsible for hospital infections are resistant to common antibiotics, the tendency to produce effective and nontoxic anti-microbial drugs have increased. Therefore, it is attempted to substitute antibiotics with natural products, such as nanoparticles and plant extracts. The aim of this study was to investigate the synergistic antibacterial effects of silver...
Nanotechnology is expected to open new avenues to fight and prevent disease using atomic scale tailoring of materials. Among the most promising nanomaterials with antibacterial properties are metallic nanoparticles, which exhibit increased chemical activity due to their large surface to volume ratios and crystallographic surface structure. The study of bactericidal nanomaterials is particularly...
objective: the objective of this study was to investigate the invitro fluoride release of four new self-adhesive resin cements; set (sdi, australia), breeze (pentron, usa), embrace wetbond (pulpdent, usa), g-cem (gc, japan) and to assess the bonding performance of these self-adhesive resin cements for bonding of orthodontic brackets. materials and methods: for fluoride release experiment, six ...
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