Silver has a long and intriguing history as an antibiotic in human health care. It has been developed for use in water purification, wound care, bone prostheses, reconstructive orthopaedic surgery, cardiac devices, catheters and surgical appliances. Advancing biotechnology has enabled incorporation of ionizable silver into fabrics for clinical use to reduce the risk of nosocomial infections and...

Transparent oxyfluoride glass-ceramics (GCs) containing KLaF4 nanocrystals (NCs) doped with Nd3+were prepared by Spark Plasma Sintering (SPS). Glass powder pellets were sintered under a vacuum atmosphere, optimizing the processing parameters such as particle size, pressure, temperature, and holding time to obtain full densification. Transparency decreased when decreasing size due higher carbon ...

Treatment of acute burn wounds with silver sulfadiazine has raised concern of potential silver toxicity. As the wound heals, a barrier forms between the silver sulfadiazine and the blood, but this membrane is not impenetrable, and so silver absorption is still possible. In this work, we have modeled chemical systems to investigate the transport of silver sulfadiazine and silver chloride through...

The chemical interactions between thorium(IV) and O2- in the LiF-BeF2 (2 : 1 mol%) (FLiBe) LiF-NaF-KF (46.5 11.5 42 (FLiNaK) molten salt systems were studied at 873 K. precipitation-dissolution behavior of Th(IV) oxide/oxyfluoride species, as well speciation law these species their relationship with oxide concentration fluoride melts, clarified. results showed that FLiBe melt would only produce...

in this work, we report synthesis of silver nanoplates by a simple reduction process of silver nitrate in the presence of polyvinyl alcohol (pva) and n,n'-dimethyl formamide (dmf). the characterization of the samples were carried out using x-ray diffraction (xrd), transmission-electron microscopy (tem) and uv-vis spectroscopy. absorption spectra of the nanoplates in comparison with that of...

Silver sulfadiazine cream has been a standard treatment for burns over the past two decades. Although many studies have described the phenomenon of silver absorption from burn wounds treated with silver sulfadiazine, they failed to examine the chemistry underlying the absorption process: Silver chloride was assumed to form at the burn wound and absorption of silver was believed to be negligible...

Near-infrared (NIR) Fourier transform (FT) surface-enhanced Raman scattering (SERS) spectra were measured for Langmuir-Blodgett (LB) and dipping films of azobenzene-containing long-chain fatty acids (nAmH, n ) 8, 12, m ) 3, 5) on silver substrates prepared by silver mirror and nitric acid etched silver foil methods. FT-IR spectra were also obtained for some of the films on silver mirror, silver...

interaction of chrysosporium sps. and aspergillus sps. with aqueous agno3 was investigated for synthesis of silver nanoparticles. biological reduction and extracellular synthesis of silver nanoparticles in 28 hour at 270c and ph 5.6 was done. the nanometallic dispersion was characterized by surface plasmon absorbance measuring at 424 – 530 nm for ag nanoparticles. high resolution transmission e...