The kinetics of the reactions between [Ni(MeOH)6](2+) (hereafter Ni(2+)) and a variety of neutral Schiff base multidentate ligands have been measured in methanol at 25.0 °C using stopped-flow spectrophotometry. The ligands contain a variety of different potential donor sites (phenolic OH, imine N, pyridyl N and NH groups), different structural components and substituents. The kinetic studies ex...

We examined the effects of urease and hydrogenase assembly gene deletions on NikR activation in H. pylori strains 26695 and G27. The loss of any component of urease assembly increased NikR activity under Ni2+-limiting conditions, as measured by reduced transcript levels and 63Ni accumulation. Additionally, SlyD functioned in urease assembly in strain 26695.

This work explored the technical feasibility of using crab shell (CS) as a promising, low-cost biosorbent to individually and simultaneously remove Zn2+ Ni2+ from aqueous solutions. It was found that in both monometallic bimetallic systems, biosorption by CS strongly dependent on solution pH, with optimum occurring at pH 6.0 for heavy metals. The obtained isotherms onto systems demonstrated has...

In this work, economic, natural, and eco-friendly biosorbent want to be advised instead of traditional methods. For that reason, banana peel-based biosorbents were been done remove Cu2+, Ni2+, Co2+ ions from the solution by batch method. Moreover, how their natural assets like density, water intake, solubility, heavy metal extraction performance affected starch oil contents had determined. Flam...

Seven transition metal complexes of Mn2+, Ni2+, Co2+, Cu2+ and Zn2+ with 3-aminopyridine (3-APy) as ligand have been synthesized, characterized by different techniques their antibacterial activities were studied. Molecular modeling calculations performed using DMOL3 program in materials studio package which is designed for the realization large scale density functional theory calculation (DFT)....

The homodinuclear complexes [Ni(RNPyS4)]2 (; RNPyS4 = 2,6-bis(2-mercaptophenylthiomethyl)-4-R-pyridine; R = H, MeO, Cl, Br, i-Pr) were found to be prepared by reactions of the in situ generated Li2[Ni(1,2-S2C6H4)2] with 2,6-bis[(tosyloxy)methyl]pyridine and its substituted derivatives 2,6-bis[(tosyloxy)methyl]-4-R-pyridine. Further reactions of with Fe3(CO)12 gave both heterotrinuclear complexe...

Exploring a sustainable route for the efficient treating/recycling of heavy metal (like Ni2+, Cd2+, Cu2+) contamination water is highly desirable both from environment and resource view. Herein, we reported scale-up synthesis monolayer magnesium-aluminium layered double hydroxide (m-MgAl-LDH) nanosheets, which showed exceptional ability to mineralize Cd2+ Cu2+ rapidly efficiently. Furthermore, ...