Aim. To assess the effectiveness of nanosilver gel (NSG) in comparison to chlorhexidine gluconate (CHX) and camphorated phenol (CP) against Enterococcus faecalis (E.f) biofilm. Methods and Materials. Two tests were done, methyl thiazolyl tetrazolium (MTT) assay and confocal laser scanning microscopy (CLSM) analysis, to determine the effectiveness of NSG, CHX, and CP on E.f biofilm. Polystyrene ...

Objective: The rapidly advancing field of nanomedicine has emerged as an extremely useful tool to combat the development of drug resistant organisms. In this study, E.coli, a Gram negative bacterium, was utilized for the extracellular biosynthesis of silver nanoparticlesfor use as a novel biocide against resistant Gram negative bacteria. Method: Biologically synthesized nanoparticles (BAgNPs) w...

The emergence of nanosilver (silver in nanoscale shapes and their assemblies) benefits the landscape modern healthcare; however, this brings about concerns over its safety issues associated with an ultrasmall size high mobility. By reviewing previous reporting details synthesis characterization biological responses, a gap between materials biomedical uses is characterized by insufficient unders...

Silver nanoparticles have proved to possess significant antibacterial properties. Nanosilver produced by electrochemical reduction stabilized by cellulose derivatives, has been evaluated by European standards (CEN TC 216) in order to find out whether they could be applied in food, industrial, domestic and institutional areas as a suitable disinfectant. Moreover, bactericidal activity of nanosil...

The influence of water chemistry on characterised polyvinyl pyrrolidone- (PVP-) coated silver nanoparticles (81 nm) was investigated. NaCl solution series of 100-800 mg L(-1) lead to initial and temporal increase in nanoparticles size, but agglomeration was limited. pH variation (5-8) had only minor influence on the hydrodynamic particle size. Acute toxicity of nanosivler to zebrafish (Danio re...

For the improved surface plasmon-coupled photoluminescence emission, a more accessible fabrication method of a controlled nanosilver pattern array was developed by effectively filling the predefined hole array with nanosilver colloid in a UV-curable resin via direct nanoimprinting. When applied to a glass substrate for light emittance with an oxide spacer layer on top of the nanosilver pattern,...

Backgrounds: Subclinical ketosis can cause greater economic loss due to a lack of clinical symptoms. Objectives: The present study was aimed to design a chemical method for measuring serum ketone bodies in the affected subclinical cows. Methods: Acetoacetate concentrations were measured using a nitroprusside reaction and b-hydroxy butyric acid (BHBA) which was oxidized to acetoacetate using nan...

objective(s): the silver nanoparticles, being very small size, can permeate the cellular membrane and interfere in the cell's natural process. in the present study, the effects of time, the dosage of these particles and their use on blood molecules and hormones, the volume of drinking water, and the urine parameters were analyzed.materials and methods: thirty six rats of the wistar race, as sub...

Based on the increasing number of multi-drug resistant bacteria in periprosthetic infections, improvement of the antibacterial activity of commonly used biomaterials must be achieved. The broad-spectrum, high antimicrobial efficacy has made silver nanoparticles a promising new antibacterial agent. However, there is still a serious lack of knowledge concerning the impact of nanosilver on bone ce...

OBJECTIVE Polymethyl methacrylate (PMMA), widely used as a prosthodontic base, has many disadvantages, including a high thermal expansion coefficient and low thermal conductivity, a low elasticity coefficient, low impact strength and low resistance to fatigue. This study aimed to make an in vitro comparison of the thermal conductivity, compressive strength, and tensile strength of the acrylic b...