Introduction. Currently, nickel-titanium alloy has a noticeable spread in the mechanical engineering and mining industry. Modification of properties this by ion-implantation is also being developed. Methods materials research. For research, experimental samples Ti-Ni coarse-grained finegrained structural state were specially manufactured before after implantation with various ion beams dose D =...

The results of a research on the surface morphology nanostructured nickel after high-fluence irradiation with 30 keV argon ions have been presented. nanostructure in was formed by high-pressure torsion deformation. It has shown that deformation nanostructuring and subsequent ion-beam sputtering allows receiving uniformly coated submicron cones. thermal stability obtained cone-shaped structure d...

Analysis of a Brucella suis 1330 gene fused to a gfp reporter, and identified as being induced in J774 murine macrophage-like cells, allowed the isolation of a gene homologous to nikA, the first gene of the Escherichia coli operon encoding the specific transport system for nickel. DNA sequence analysis of the corresponding B. suis nik locus showed that it was highly similar to that of E. coli e...

A new process for fabricating NiO exchange bias layers has been developed. The process involves the direct ion beam sputtering (IBS) of a NiO target. The process is simpler than other deposition techniques for producing NiO buffer layers, and facilitates the deposition of an entire spin-valve layered structure using IBS without breaking vacuum. The layer thickness and temperature dependence of ...

In Escherichia coli and other bacteria, nickel uptake is regulated by the transcription factor NikR. Nickel binding at high-affinity sites in E. coli NikR (EcNikR) facilitates EcNikR binding to the nik operon, where it then suppresses transcription of genes encoding the nickel uptake transporter, NikABCDE. A structure of the EcNikR-DNA complex suggests that a second metal-binding site is also p...

A series of nickel complexes supported with a tripodal ligand bis(1-methylbenzimidazolyl-2-methyl)amine (L) or bis(1-methylbenzimidazolyl-2-methyl)-10-camphorsulfonamide (L') on a Ni(II) ion were synthesized and fully characterized. The complexes, [LNiCl(micro-Cl)]2.4CH(3)OH (1), [LNi(CH(3)CN)3](ClO4)2.2CH(3)CN (3), and [L2(2)Ni(2)(micro-OAc)3]X (X = Cl- (5) or ClO4- (7)), coordinated with the ...

Four dimeric nickel(II) complexes [Ni2Cl2(BnC2S)2] [1], [Ni2Cl2(BnC3S)2] [2], [Ni2(PyC2S)2]Br2 [3]Br2, and [Ni2(PyC3S)2]Br2 [4]Br2 of four different thiolate-functionalized N-heterocyclic carbene (NHC) ligands were synthesized, and their structures have been determined by single-crystal X-ray crystallography. The four ligands differ by the alkyl chain length between the thiolate group and the b...

The mortality experienced by a cohort of 3025 nickel-cadmium battery workers during the period 1946-81 has been investigated. Occupational histories were described in terms of some 75 jobs: eight with "high", 14 with "moderate" or slight, and 53 with minimal exposure to cadmium oxide (hydroxide). The method of regression models in life tables (RMLT) was used to compare the estimated cadmium exp...

Reactively sputtered nickel oxide (NiOx) films provide transparent, antireflective, electrically conductive, chemically stable coatings that also are highly active electrocatalysts for the oxidation of water to O2(g). These NiOx coatings provide protective layers on a variety of technologically important semiconducting photoanodes, including textured crystalline Si passivated by amorphous silic...

To Investigate the role played by nickel co-ions in contributing to the stability of arsenic, fluorescence XAFS measurements at both arsenic K-edge and nickel K-edge, respectively, on amorphous arsenical nickel hydroxide, crystalline arsenical nickel hydroxide, and annabergite reference compounds have been carried out. The XAFS results indicate that the arsenic-bearing nickel hydroxides have a ...