Results 11 to 20 of about 44,526 (259)
, 2021 Selenium (Se) is a micronutrient for many organisms including humans. But like many trace elements, Se can be toxic at high concentrations and become a public health concern if it accumulates in soils or groundwater.
Cakir, Ozgur, Van Hoewyk, Doug
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Nature, 1890 IN your issue of the 23rd ult. (p. 284) you insert a paragraph describing experiments by M. Chabrie on compounds of selenium. While fully acknowledging the value of his work on the phenyl derivatives of selenium, I think it right to state that much of M. Chabrie's investigation has been anticipated by Mr. F. P. Evans and myself as long ago as 1884; and
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, 2010 This work is funded by the EPSRC UKRefluxing a toluene solution of Woollins' reagent, WR, with difunctional aromatic substrates (aryldiamines and aryldithiols) leads to a series of novel five-to seven-membered heterocycles 2a-e, 4a, 4b and 6a-c with an E-
Fuller, Amy L. +4 more
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Modern State of Markets of Selenium and Selenium-Based Compounds
Izvestiya Vuzov. Tsvetnaya Metallurgiya (Proceedings of Higher Schools. Nonferrous Metallurgy), 2015 This review describes the current state and changes of the market of selenium under the influence of new sectors of their application, as well as the condition and prospects of the Russian market. The dynamics of world production and the prices for selenium in recent years are given.
N. A. Kul’chitskii, A. V. Naumov
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Speciation of Selenium Compounds
Analytical Sciences, 1998 The toxicity and essential nature of selenium in the environment depend on its concentration and on the chemical forms in which it is present. Dissolved inorganic selenium can be found in natural waters as selenides (Se-II), colloidal elemental selenium (Se0), selenite (SeIV) as well as selenate (SeVI).
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Advanced Engineering Materials, EarlyView.Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni +7 more
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, 2004 An efficient method for the catalytic reduction of aromatic nitro compounds to the corresponding aromatic amines is reported. In the presence of selenium as a catalyst, the aromatic nitro compounds are quantitively reduced by CO/H2O to form the ...
Lu, SW, Liu, XZ
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Cathodic Cage Plasma Deposition of Nanostructured Cu–Fe–Se Coatings on Poly(methyl Methacrylate)
Advanced Engineering Materials, EarlyView.Nanostructured Cu–Fe–Se coatings are deposited on PMMA by a modified cathodic cage plasma process, enabling low‐temperature deposition on polymer substrates. A transition from discontinuous to compact morphology is observed with temperature, with optimal properties at 200°C, where improved CuFeSe2‐type bonding, lowest sheet resistance, and favorable ...
V. S. S. Sobrinho +8 more
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Síntese e avaliação do potencial antioxidante de compostos biologicamente importantes contendo selênio [PDF]
, 2015 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2015.O presente trabalho trata do planejamento e síntese de moléculas biologicamente importantes ...
Nascimento, Vanessa do
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Advanced Engineering Materials, EarlyView.A distinct semi‐confined inner‐tube chemical vapor deposition geometry enables reproducible, large‐area growth of phase‐pure 2D β′‐In2Se3 from InI + Se precursors. Engineering local vapor transport and optimizing precursor delivery and temperature–time conditions yield uniform continuous films.
Dasun P. W. Guruge +8 more
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