Chromium(VI) compounds are known to be potent toxic and carcinogenic agents. Because chromium(VI) is easily taken up by cells and is subsequently reduced to chromium(III), the formation of paramagnetic chromium such as chromium(V) and chromium(III) is believed to play a role in the adverse biological effects of chromium(VI) compounds. The present report, uses electron spin resonance (ESR) spect...

The cold spray or Supersonic Particle Deposition technique has great potential for producing ceramic nanostructured coatings. This operates at a processing temperature that is low enough to preserve the initial feedstock materials’ microstructure. Nevertheless, depositing powders using can be challenging because of brittle nature. interaction between substrate and particles significantly influe...

Our previous study showed that chromium malate improved the regulation of blood glucose in mice with alloxan-induced diabetes. The present study was designed to evaluate the effect of chromium malate on glycometabolism, glycometabolism-related enzymes and lipid metabolism in type 2 diabetic rats. Our results showed that fasting blood glucose, serum insulin level, insulin resistance index and C-...

The removal of chromium(VI) from an aqueous solution using persimmon gel was examined. The amount of chromium(VI) removed was strongly affected by the pH of the solution, with all chromium(VI) being removed at pH 2 or lower. However, in a solution containing, 15 mg dry weight of immobilized persimmon gel, the amount of removed chromium(VI) decreased as the pH increased. A part of chromium(VI) w...

Abstract The development of hexaferrite nanoparticles is scrutinized as potential sorbents for the removal chromium (Cr) ions from aqueous chromium-containing solutions in a batch adsorption experiment. transition metal Co doped BaFe 12 O 19 compounds (BHF) have been synthesized successfully via citrate auto combustion technique. structure, surface morphology and magnetic properties samples wer...

A general overview on the prospective of various oxidation and combined processes in the treatment of tannery industry effluent are reported. Various oxidation and combined processes such as UV/H2O2/Hypochlorites, Fenton and Electro-oxidation, photo-chemical, photo-catalytic, electro-catalytic oxidation, wet air oxidation, ozonation, biological followed by ozone/UV/ H2O2, coagulation or electro...

Nowadays, nano mineral modified biochars show a promising adsorption capacity for pollutants removals by combining the advantages of porous structure biochar and unique property minerals. In this work, nano-zinc oxide doped scrap tire derived activated carbon (nZnO-STAC) was synthesized wetness impregnation method. Equilibrium data were analyzed using Langmuir Freundlich isotherm models while k...

We discuss the computational bottlenecks in molecular dynamics (MD) and describe the challenges in parallelizing the computation-intensive tasks.We present a hybrid algorithmusingMPI (Message Passing Interface) with OpenMP threads for parallelizing a generalizedMD computation scheme for systemswith short range interatomic interactions. The algorithm is discussed in the context of nano-indentati...

The European Union has banned chromium(VI) compounds in electrical and electronic equipment (EEE), such as chromate conversion coating films. Chromium(III) compounds are not banned. Using Raman spectroscopy without any preparation, we distinguished chromium(VI) oxide from chromium(III) oxide and chromium(III) hydroxide in chromate conversion coating films. Raman bands of chromium(VI) oxide were...

The kidney is the principal route of excretion of the essential trace element chromium. Previous studies suggest that five to 40 percent of plasma chromium (III) is ultrafilterable and that 60 to 95 percent of filtered chromium is reabsorbed in the renal tubule. However, less than five percent of a stable Cr (III)-EDTA chelate is reabsorbed; therefore, this complex has been used to measure glom...