The aim of the current work is the synthesis and characterization of metallic Zr nanoparticles. The preparation is carried out by using the RAPET method (Reaction under Autogenic Pressure at Elevated Temperatures) developed in our lab. The RAPET reaction of commercial ZrO(2) with Mg powder was carried out in a closed stainless steel cell, at 750 °C. On completion of the reaction, the additional...

In this research, the radiation-heterogeneous processes of water decomposition on surface zirconium dioxide nanoparticles (n-ZrO2) were studied. The kinetics buildup molecular hydrogen during radiolytic was also examined. production H2 and H2O2 through radiolysis investigated to develop a computational model disclose kinetic behavior radiolysis. enthalpy ZrO2 studied at temperature range T=1200...

The hydroboration of aldehydes and ketones using a silica-supported zirconium catalyst is reported. Reaction of Zr(NMe2)4 and mesoporous silica nanoparticles (MSN) provides the catalytic material Zr(NMe2)n@MSN. Exhaustive characterization of Zr(NMe2)n@MSN with solid-state (SS)NMR and infrared spectroscopy, as well as through reactivity studies, suggests its surface structure is primarily ≡SiOZr...

An ultrasensitive electrical detection method of nucleic acids has been developed on a nanogapped biosensor. In this study, peptide nucleic acid (PNA) probes were immobilized in the gaps of a pair of finger microelectrodes first and were then hybridized with their complementary target DNA. After that, pectin molecules were introduced into the DNA strand via zirconium-phosphate and zirconium-car...

Objective: Zirconium dioxide (ZrO2) nanofillers were added to denture liners improve their physical properties. The main goal of this research was evaluate the impact adding nano zirconium oxide fillers on color change, water sorption and solubility silicone acrylic liners. Materials Method: surface ZrO2 nanoparticles modified via treatment with silane coupling agent (3-aminopropyl) triethoxysi...

Zirconium dioxide as core ceramic material for dental crowns and bridges, possess high strength, chemical stability and superior aesthetics after veneering. Veneering ceramic is considered to be the weakest part of all-ceramic restorations. The adhesion between the core and veneering porcelain is based on the manner in which the connection occurs in metal-ceramic structures. Standard procedures...

Large-scale characterization of phosphoproteins requires highly specific methods for the purification of phosphopeptides because of the low abundance of phosphoproteins and substoichiometry of phosphorylation. A phosphopeptide enrichment method using ZrO2 nanoparticles is presented. The high specificity of this approach was demonstrated by the isolation of phosphopeptides from the digests of mo...

In this paper, the effect of nano zirconia particles on damping characteristics polycarbonate composites was investigated experimentally. The were added to matrix with five different weight percentage (wt %). Polycarbonate Nanocomposites filled pristine and modified ‎Zirconium dioxide prepared by simple melt compounding. All samples ‎were an injection molding process. studied before after damag...

Abstract The present study investigates the effective thermal conductivity of nanofluids containing crystalline or amorphous silicon dioxide (SiO 2 ), zirconium (ZrO ) nanoparticles dispersed in a mixture water and glycerol with mass ratio 60:40. Such fluids are relevant as potential cutting tribology feature broad distribution irregularly shaped non-spherical particles dimensions on order (100...