Nickel is an abundant carcinogenic and nephrotoxic metal whose activity leads to renal impairment. Previous studies have shown a protective effect of simultaneous vitamin C administration on acute and chronic nickel toxicity. However, very little research relating to the effect of vitamin C pretreatment in preventing nickel-induced acute nephrotoxicity is available. Therefore, the present study...

Diffusion characteristics of iron and nickel atoms were investigated using radioactive isotopes method in phase-hardened metastable iron-nickel Fe-31.7%Ni-0.06%C alloy with nanofragmented structure. It has been found that diffusion mobility of nickel and iron atoms in reverted austenite of Fe-31.7%Ni-0.06%C alloy significantly increases as the result of multiple γ-α-γ martensitic transformation...

The aim of this study was (i) to investigate alternatives to the very toxic Ni(C0)4, (ii) optimization of the parameters for Ni film growth, and (iii) characterization of the film morphology. The thermal behaviour of the precursors bis(dirnethylglyoximato)Ni(II), [Ni(dmg)2], bis(2,2,6,6-tetramethyl-3,5-heptandionato)Ni(II), [Ni(thd)2], N,N'-ethylenebis(2,4-pentandioniminoato)Ni(II), [Ni(enacac)...

Complex engineered nanomaterials (CENs) are a rapidly developing class of structurally and compositionally complex materials that are expected to dominate the next generation of functional nanomaterials. The development of methods enabling rapid assessment of the toxicity risk associated with this type of nanomaterial is therefore critically important. We evaluated the toxicity of three differe...

A chelating diphosphine ligand with a central N-heterocyclic phosphenium cation (NHP(+)) has been used to explore the coordination chemistry of NHPs with nickel. Treatment of the chlorophosphine precursor [PPP]Cl (1) with stoichiometric Ni(COD)2 affords (PPP)NiCl (8), which is best described as a Ni(II)/NHP(-) phosphido complex formed via oxidative addition of the P-Cl bond. In contrast, treati...

Ni(PMe3)4 serves as a catalyst for the release of H2 and CO2 from formic acid. The capacity of Ni(PMe3)4 to achieve this transformation is linked to the ability of the PMe3 ligand to induce decarboxylation, as illustrated by the observation that both Ni(py)4(O2CH)2 and Ni(O2CH)2·2H2O react with PMe3 to afford Ni(PMe3)4; the latter transformation also provides a convenient method for the synthes...

A solution for the p(2 2) NiO(111) surface reconstruction was obtained using direct methods applied to X-ray di€raction data. The solution was re®ned with 296 data points and 21 parameters using v minimization …v2 ˆ 1:82;R ˆ 0:17†. The surface atoms showed very small relaxation from the bulk interatomic distances (Ni±Ni distances are 2:9 0:1 A; Ni±O ÿ2:0 0:1 A). The solution can be characterize...

The amount of Ni produced in type Ia supernova (SN Ia) explosion is probably the most important physical parameter underlying the observed correlation of SN Ia luminosities with their light curves. Based on an empirical relation between the Ni mass and the light curve parameter △m15, we roughly determined the Ni mass for a large sample of nearby SNe Ia with the aim of exploring SN Ia diversity....

The amount of Ni produced in type Ia supernova (SN Ia) explosion is probably the most important physical parameter underlying the observed correlation of SN Ia luminosities with their light curves. Based on an empirical relation between the Ni mass and the light curve parameter △m15, we obtained rough estimates of the Ni mass for a large sample of nearby SNe Ia with the aim of exploring the div...