A new modified silica gel doped with 5-(4-dimethylaminobenzylidene)-rhodanine was prepared for separation, preconcentration and determination of silver ion by atomic absorption spectrometry. This new modified silica gel was used as an effective adsorbent for the solid phase extraction of Ag(+) from aqueous solutions. The variables that influence the adsorption/desorption of trace levels of Ag(+...

A rapid temperature sensing device and antibacterial textiles were successfully developed based on amorphous photonic crystals with bright structural colors which doped silver nanoparticles to absorb incoherently scattered light.

Phosphate-based glasses (PBGs) are excellent controlled delivery agents for antibacterial ions such as silver and gallium. The aim of this study was to assess the potential utility of novel PBGs combining both gallium and silver for use in periodontal therapy. To this end, an in vitro biofilm model with the putative periodontal pathogen, Porphyromonas gingivalis, and an initial colonizer, Strep...

The physical chemistry of the silver photography processes, exposure, development and fixing, is briefly summarized. The mechanism of the autocatalytic development by the developer of the clusters produced in silver bromide crystals during the exposure which is controlled by the critical nuclearity of these clusters was understood from pulse radiolysis studies. The effective quantum yield Feff ...

We report the synthesis of hydroxyapatite (HAp)-based antibacterial biomaterials using a mussel shell as calcium source and by integration silver ions via wet precipitation method. The doping at 2 mol% can provide silver-doped carbonated HAp while 10 mol% offer HAp/silver oxide nanocomposite. synthesized Ag-integrated samples exhibit H (263–903Mpa) E (0.96–3.31GPa) almost similar to cancellous ...

Nanocomposite of Ag/TiO2 and nanocrystalline TiO2 were prepared by using TiCl4 as a precursor in a simple sol-gel process. The prepared photo-catalysts were characterized by X-ray diffraction (XRD), scanning electron micrographs (SEM), energy dispersive X-ray microanalysis (EDX), transmission electron microscopy (TEM) and diffuse reflectance spectroscopy (DRS). A complete and effective photocat...

• Nano-powders of functionalized graphene and hydroxyapatite were synthesized. Novel, non-toxic dental adhesives formulated. In-vitro performance under clinically relevant environmental conditions aging enables clinical use. Functionalized fillers are proposed as reinforcing particles in light-cured for applications. Silica-silver-graphene (SiO 2 -Ag-Gr), silver-doped (HA-Ag), silver doped (HA-...