نتایج جستجو برای: semiconducting cadmium compounds

تعداد نتایج: 254017  

2010
A. DUMBRAVA C. BADEA G. PRODAN V. CIUPINA

Cadmium sulfide uniform fine particles have been synthesized in soft conditions, at room temperature, using cadmium complex compounds and thioacetamide. The microstructure and morphology of cadmium sulfide were characterized by X ray Diffraction, Transmission Electron Microscopy, High Resolution Transmission Electron Microscopy, and Selected Area Electron Diffraction. The optical properties of ...

2011
Zoe Boekelheide

Cr3Al shows semiconducting behavior that has not been explained previously. We used density functional theory calculations, performed at the Cornell NanoScale Facility to study the effect of chemical ordering and magnetism on the semiconducting behavior. The calculations show that the proposed chemically ordered Cr3Al structure in the Cr1-xAlx phase diagram is the lowest energy structure of tho...

2011
Zoraya López-Cabaña Clivia Marfa Sotomayor Torres Guillermo González

A series of hybrid cadmium salt/cationic surfactant layered nanocomposites containing different concentrations of cadmium sulphide was prepared by exchanging chloride by sulphide ions in the layered precursor CdXx(OH)y(CnTA)z in a solid phase/gas reaction, resulting in a series of layered species exhibiting stoichiometries corresponding to CdSvXx(OH)y(CnTA)z, constituted by two-dimensional CdCl...

Journal: :Molecular pharmacology 1999
N Miura Y Matsumoto S Miyairi S Nishiyama A Naganuma

The effects of triterpene compounds on cadmium toxicity were investigated in HepG2 cells. Ten triterpene compounds were examined, namely, betulin, soyasapogenol A, soyasapogenol B, ursolic acid, uvaol, oleanolic acid, friedelin, glycyrrhizin, 18alpha-glycyrrhetinic acid, and 18beta-glycyrrhetinic acid, and betulin, soyasapogenol A, and uvaol were found to reduce the toxicity of CdCl(2). In part...

Journal: :Environmental Health Perspectives 1990
P K Singh S G Jones M M Jones

The role of structural factors in determining the relative efficacy of dithiocarbamates as chelating agents for the in vivo mobilization of aged cadmium deposits is examined for 23 newly synthesized compounds of this type. The critical feature in determining the efficacy of the compounds in mobilizing intracellular cadmium is the balance between hydrophobic and hydrophilic groups. This balance ...

2012
AMITA KUMARI

Cadmium is a heavy metal, a well recognized environmental pollutant with numerous adverse health effects. Being widely used in industry, cadmium can affect human health through occupational and environmental exposure (Waisberg et al., 2003). The level of cadmium compounds in the environment have progressively increased as a consequence of industrial pollution which can be attributed to electrop...

2015
Yen-Hsiung Liao

Purpose: To determine whether chromium, cadmium, and lead levels in human Fingernails reflected the exposure to workplace contamination in tanneries. Approach: 49 exposed tanning workers and 33 controls were monitored for fingernail levels of chromium, cadmium, and lead by graphite furnace and hydride atomic absorption spectroscopy. Results: The mean levels of fingernail chromium, cadmium, and ...

Journal: :Acta biochimica Polonica 2003
Edward Kowalczyk Anna Kopff Paweł Fijałkowski Maria Kopff Jan Niedworok Jan Błaszczyk Józef Kedziora Piotr Tyślerowicz

Cadmium is a dangerous occupational and environmental toxin. It accumulates in the human organism mainly in liver and kidneys. Cadmium half-life is about 10 years, so the symptoms of cadmium intoxication may occur several years after the exposure. Until now in treating intoxication with this metal chelating compounds have been used, burdened with numerous undesirable symptoms. In our investigat...

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