Bradyrhizobium strains, isolated in New Caledonia from nodules of the endemic legume Serianthes calycina growing in nickel-rich soils, were able to grow in the presence of 15 mM NiCl2. The genomes of these strains harbored two Ni resistance determinants, the cnr and nre operons. By constructing a cnrA mutant, we demonstrated that the cnr operon determines the high nickel resistance in Bradyrhiz...

High-temperature sodium-nickel chloride (Na-NiCl2) batteries are a promising solution for stationary energy storage, but the complex tubular geometry of solid electrolyte represents challenge manufacturing. A planar and cell design is more compatible with automated mass production. However, also faces series challenges, such as management molten phases during cycling. As result, cycling high-te...

We report the effect of nickel chloride on fibroblast-mediated collagen gel contraction, fibroblast migration and pattern of matrix metalloproteinase (MMP) activities expressed by human embrzonary lung fibroblasts (HELFs). After the treatment with nickel chloride, gelatin zymography, casein zymography and also western blot assay revealed a significant decrease of MMP-2 and MMP-1 active forms. M...

We study the strongly anisotropic quasi-one-dimensional S = 1 quantum magnet NiCl2·4SC(NH2)2 using elastic and inelastic neutron scattering. We demonstrate that a magnetic field splits the excited doublet state and drives the lower doublet state to zero energy at a critical field Hc1. For Hc1 < H < Hc2, where Hc2 indicates the transition to a fully magnetized state, three-dimensional magnetic o...

NiCl2(PPh3)2-catalyzed alkylative olefinations of trithioorthoesters and te tra th ioortho ­ carbonates give the corresponding substituted alkenes. A liphatic C -S bonds in these sub­ strates can be activated in the nickel-catalyzed cross coupling reaction leading to ca rb o n carbon bond form ation. This reaction can be considered as using trithioorthoesters and te tra ­ th ioorthocarbonate as...

Increasing evidence demonstrates the reactive oxygen species (ROS) are implicated in metal carcinogenesis. Exposure of cultured Chinese hamster ovary (CHO) cells to several nickel compounds, i.e. NiS, Ni3S2, NiO (black and green), and NiCl2 has been shown to increase oxidation of 2',7-dichlorofluorescein to the fluorescent 2',7-dichlorofluorescein (DCF), suggesting that nickel compounds increas...

Two hundred and forty avian broilers were equally divided into four groups, and raised with a corn-soybean basal diet or the same diet supplemented with 300, 600, 900 mg/kg NiCl2 for 42 days. Numbers or percentages of apoptotic splenocytes by flow cytometry (FCM) and TUNEL were higher (p < 0.05 or p < 0.01) in the 300, 600 and 900 mg/kg groups than those in the control group. Results measured b...

Nickel compounds are a somewhat unique class of carcinogens. Previous studies have demonstrated that NiCl2 exposure leads to marked induction of hypoxia inducible factor 1 (HIF-1) in human osteosarcoma and BALB/c 3T3 cells, a transcription factor that has been considered to play an important role in tumor promotion and progression. However, the signal transduction pathways leading to HIF-1 indu...