Two silver nanoparticles containing compounds were prepared by simple chemical reactions and characterized X-ray diffraction (XRD), infra-red spectrum (FTIR) atomic force microscope (AFM). These functionalized used to study their biological activity against four types of fungi. proved have high inhibition effect all studied Due the presence which increases nystatin clotrimazol interact with

Fused-silica and silver-coated hollowcore fibers have been used to compress femtosecond optical pulses from a Ti:sapphire laser at 800 nm. Input pulses with energy of 250 μJ and duration of 110 fs were used and compressed pulses with duration of 20 fs and energy of 220 μJ were generated by using the silver-coated fiber. When a similar uncoated fused-silica hollow fiber was used, compressed puls...

OBJECTIVES Implantable devices are major risk factors for hospital-acquired infection. Biomaterials coated with silver oxide or silver alloy have all been used in attempts to reduce infection, in most cases with controversial or disappointing clinical results. We have developed a completely new approach using supercritical carbon dioxide to impregnate silicone with nanoparticulate silver metal....

We consider the effect of different approximations to the dielectric function of a silver sphere on the absorption of light by two-dimensional and threedimensional periodic and non-periodic arrays of non-overlapping silver spheres in a host dielectric medium. We present also some results on the band structure and the absorption coefficient of light by photonic crystals consisting of non-overlap...

This study demonstrates the anti-Staphylococcus aureus properties of stainless steel surfaces coated with zeolite containing 2.5% silver and 14% zinc ions. Stainless steel panels with and without the heavy-metal-containing coatings were inoculated with S. aureus and incubated at room temperature. Survival of S. aureus was significantly reduced by the silver/zinc coatings within 1 h. Many hospit...

This communication reports the production of polyphenylpyrrole coated silver nanoparticles at the liquid/liquid interface by an EC-type mechanism. In the electrochemical step of the reaction N -phenylpyrrole facilitates the transfer of the silver ion from an aqueous to an organic phase. This step is followed by a slow homogeneous electron transfer reaction from the N -phenylpyrrole to the silve...

Here we describe a new opportunity in methodology for increasing the detectability of fluorescently labeled DNA on solid substrates. We show that the use of glass substrates coated with metallic silver particles results in an approximate 5-fold increase in the intensity of Cy3- or Cy5-labeled DNA oligomers. Proximity to these silver particles also increases the photostability of Cy3- and Cy5-la...

There is an increasing interest in using of silver coated (silver nitrate, silver alloy, silver oxide) catheters for hospital patients. Clinical trials with silver-coated urinary catheters have shown conflicting results. The most often performed catheterization is for a short period of time. The above observations have encouraged the authors to investigate the influence of silver nitrate (AgNO3...

Relatively little is known about the behavior and toxicity of nanoparticles in the environment. Objectives of work presented here include establishing the toxicity of a variety of silver nanoparticles (AgNPs) to Daphnia magna neonates, assessing the applicability of a commonly used bioassay for testing AgNPs, and determining the advantages and disadvantages of multiple characterization techniqu...

Nanosilver applications have been implicated in paint, plastic, textile and medical industries. Nanosilver particles absorb sweat and in turn avoid pungent smell of feet. The present study aims to determine the antibacterial activity of Ag-coated different sock fabrics and comparing their efficacy in reducing foot-borne resident bacteria. Synthesize of nanosilver particles was performed in vari...