ABSTRACT. The current study focuses on glass preparation and characterization in the system of chemical formula xAl2O3 (35-x) Ag2O.65B2O3 (0≤x≤35 mol%), where Ag2O is replaced with Al2O3. To examine a wide range both structure morphology prepared glasses, nuclear magnetic resonance (NMR) 27Al nuclei, X-ray diffraction (XRD) spectroscopy, transmission electron microscopy (TEM) are used. In Al2O3...

The superior antimicrobial properties of silver nanoparticles (Ag NPs) are well-documented, but the exact mechanisms underlying Ag-NP microbial toxicity remain the subject of intense debate. Here, we show that Ag-NP concentrations as low as 10 ppm exert significant toxicity against Bacillus subtilis, a beneficial bacterium ubiquitous in the soil. Growth arrest and chromosomal DNA degradation we...

A novel bioactive glass scaffold ICIE16/BSG has been prepared from a mixture of two different melt-derived glasses: a silicate bioglass (ICIE16) and a borosilicate bioglass (BSG). Combined processing techniques (gel casting and foam replication) were used to form three-dimensional, interconnected porous monolith scaffolds (Orgaz et al., 2016) [1]. They were then nitrided with a hot ammonia flow...

Gold(I) N-heterocyclic carbene (NHC) complexes were obtained in good yields from the corresponding silver complexes by treatment with [AuCl(PPh3)] following the commonly used silver carbene transfer route. The silver complexes were synthesized from the benzimidazolium halide salts by the in situ reactions with Ag2O in dichloromethane as a solvent at room temperature. All gold complexes have bee...

Original information on local thermal expansion can be obtained through a cumulant analysis of EXAFS. The different sensitivity to correlation of the first and third EXAFS cumulants, and their comparison with crystallographic distance, can help in disentangling the contribution of potential anharmonicity to thermal expansion from geometrical effects. These possibilities are illustrated by recen...

New cathode materials will lead to technological advances for implantable cardioverter defibrillators, ICDs, such as reduced size and increased performance of the device. While the industry standard silver vanadium oxide Ag2V4O11 exhibits great chemical/electrochemical stability, dense silver oxide fluoride materials are advantageous because of high crystal density that can result in an increas...

It is widely accepted that the photocatalytic efficiency of TiO2 can be enhanced by modifying its surface with noble metal nanoparticles, such as Ag. On TiO2, Ag nanoparticles are exposed to rapid oxidation, resulting AgxO. Therefore, in present work, activities composites were investigated. They consisted commercial titanium dioxide mixtures (Aldrich anatase and rutile) well-defined ratios whi...