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,...

We have systematically examined the effects of chitosan film or chitosan in combination with nanometal particles (nanogold or nanosilver particles) on the growth of Schwann cells (S16) and DRG neurons (50B 11). Our results strongly suggest chitosan and chitosan in combination with nanogold particles had no effects on the growth kinetics of Schwann cells but had slightly slowed those of DRG neur...

Nanosilver and nanocurcumin are popular nonmaterial with increasing public attention, but their synergistic therapeutic potentials in burns have never been considered. The present study aimed to provide a novel formulation from both nanomaterials (Ag – Curcumin NPs) and conduct their preclinical evaluation for burn healing. After evaluation of particle size, loading efficiency, release profile ...

Silver ions are a strong antiseptic with a broad spectrum. Treatment of textiles and leather with nanosilver particles is a new idea for real clean wear. The nanometer-size particles have a large specific surface resulting in the release of silver ions in antiseptic concentration. One way to investigate nanosilver treated leather is the intrinsic fluorescence of organic material. This fluoresce...

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...

Silver ion has been used for centuries to prevent and treat a variety of diseases and infections. In recent years, extensive studies have been undertaken on the use of antimicrobial properties of silver, incorporated within medical devices. The aim of this study was to prepare a formulation containing silver ion, which could be applied for wound dressing. The purity of nanosilver was measured b...

BACKGROUND Halomethanes are toxic and carcinogenic chemicals, which are widely used in industry. Also they can be formed during water disinfection by chlorine. Biodegradation by methylotrophs is the most important way to remove these pollutants from the environment. OBJECTIVES This study aimed to represent a simple and rapid method for quantitative study of halomethanes utilizing bacteria in ...

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...