Results 11 to 20 of about 135,534 (288)

Synthesis and characterization of some new complexes of Co(II), Ni(II), Cu(II), Zn(II), Cd(II), Hg(II) with 2,3 and 3,4- di-(2΄-thiophenoyloxy) aniline [PDF]

open access: yesمجلة التربية والعلم, 2012
A series of new complexes of the type [M(L1)Cl2] , [M(L2)Cl2] and [M΄(L1)(Th)2] where L1=2,3-di-(2΄-thiophenoyloxy) aniline, L2=3,4-di-(2΄-thiophenoyloxy)aniline, M=Co+2, Ni+2, Cu+2, Zn+2, Cd+2 and Hg+2, M΄= Ni+2, Cu+2, Zn+2 and Cd+2, Th=thiophene ...
Saba M. Alasalli
doaj   +1 more source

Rules governing metal coordination in clusters from Aβ-Zn(II) complexes from quantum mechanical calculations

open access: yes, 2023
Transition metals directly contribute to the neurotoxicity of the aggregates of the amyloid-forming A$\beta$ peptide. The understanding and rationalisation of the coordination modes of metals to A$\beta$ amyloid is therefore of paramount importance to ...
David, De Sancho   +3 more
core   +1 more source

Anti-cancer study of Ni (II) and Zn (II)- chitosan complexes

open access: yesTikrit Journal of Pure Science, 2022
Two neutral chitosan polymer complexes with Ni(II) and Zn (II) were prepared and characterized by molar conductivity measurements, IR spectroscopy. The prepared complexes were tested against two types of cancer cell lines {breast cancer (MCF-7) and ...
Beyadir R. Abed, Ali O. Mohammed
doaj   +1 more source

THE METHOD DEVELOPMENT OF ANALYSIS Cd, Cu, Pb AND Zn IN SEA WATER BY ABSORPTIVE STRIPPING VOLTAMMETRY (ASV) IN THE PRESENCE OF CALCON AS COMPLEXING AGENT

open access: yesIndonesian Journal of Chemistry, 2012
A sensitive and selective absorptive stripping voltammetric (AdSV) method to determine Cd(II), Cu(II), Pb(II) and Zn(II) in sea water is proposed. The aim of this study was to get optimum condition for the determination of Cd(II), Cu(II), Pb(II) and Zn ...
Deswati Deswati   +2 more
doaj   +1 more source

A molecular mechanism for bacterial susceptibility to zinc.

open access: yesPLoS Pathogens, 2011
Transition row metal ions are both essential and toxic to microorganisms. Zinc in excess has significant toxicity to bacteria, and host release of Zn(II) at mucosal surfaces is an important innate defence mechanism.
Christopher A McDevitt   +6 more
doaj   +1 more source

Use of a zinc fluorophore to measure labile pools of zinc in body fluids and cell-conditioned media

open access: yesBioTechniques, 2006
Here we describe a rapid and sensitive zinquin-based fluorometric assay that enables one to monitor levels of labile Zn(II) in body fluids, buffers, and cell-conditioned culture media as well as changes in these pools in disease.
Peter Zalewski   +11 more
doaj   +1 more source

Synthesis and structural properties of a 2D Zn(II) dodecahydroxy-closo-dodecaborate coordination polymer

open access: yes, 2022
In this work, we discuss the synthesis and characterization of a 2D coordination polymer composed of a dianionic perhydroxylated boron cluster, [B12(OH)122-], coordinated to Zn(II)—the first example of a transition metal-coordinated [B12(OH)12]2 ...
Alexander, Spokoyny   +8 more
core   +1 more source

Microbial Pb(ii) Precipitation: the Influence of Aqueous Zn(ii) and Cu(ii)

open access: yesChemical Engineering Transactions, 2019
The current study focused on the impact of heavy metals Zn(II) and Cu(II), regularly found in conjunction with lead in industrially polluted areas, on the Pb(II) bioprecipitation capabilities and metabolic activity of an industrially isolated microbial ...
Carla Horstmann, Hendrik Brink
doaj   +1 more source

SORPTION-DESORPTION MECHANISM OF Zn(II) AND Cd(II) ON CHITIN

open access: yesIndonesian Journal of Chemistry, 2010
This study reports the results of the elucidation of the sorption-desorption mechanism of Zn(II) and Cd(II) on chitin through the determination of capacity, energy, and rate constant of sorption as well as the investigation of their desorption properties
Sri Juari Santosa   +2 more
doaj   +1 more source

Synergistic activity of pomegranate rind extract and Zn (II) against Candida albicans under planktonic and biofilm conditions, and a mechanistic insight based upon intracellular ROS induction

open access: yesScientific Reports, 2022
Candida albicans (C. albicans) is an opportunistic pathogen, which causes superficial infection and can lead to mortal systemic infections, especially in immunocompromised patients. The incidence of C.
Vildan Celiksoy   +4 more
doaj   +1 more source

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