Facultad de Ciencias Químicas y Farmacéuticas: Recent submissions
Now showing items 4601-4620 of 5198
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(ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER, 2009-12)In the search of new therapeutic tools for the treatment of American Trypanosomiasis, the largest parasitic disease burden in the American continent, three series of novel ruthenium complexes of the formula [RuCl2(HL)(2)], ...
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(AMER CHEMICAL SOC, 2005-03)We report a new and specific mechanism for iron-mediated neurotoxicity using RCHT cells, which were derived from rat hypothalamus. RCHT cells exhibit immunofluorescent-positive markers for dopamine beta-hydroxylase and the ...
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(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2004-07)Leukoaminochrome o-semiquinone radical is generated during one-electron reduction of dopamine oxidation product aminochrome when DT-diaphorase is inhibited. Incubation of 100 muM aminochrome with 100 muM dicoumarol, an ...
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(JOHN WILEY & SONS INC, 2002-03-15)The electronic structures of complexes and one-dimensional metallomacrocycles with cyanide as bridged ligand, such as [MacM(CN)(2)](-) and [MacM(CN)](n) [Mac = phthalocyanine, tetrabenzoporphyrine; M = Co(III), Rh(III)] ...
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(JOHN WILEY & SONS LTD, 2007-01)Chlorophenylmaleimide (Cl-PhMI) and N-maleoylglycine (N-MG) with beta-methylhydrogen itaconate (beta-MHI) were copolymerized by radical polymerization, and their metal ion retention capacity (MRC) and thermal behavior were ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2009-01)Four different types of Chilean wines (Cabernet Sauvignon, Merlot, Carmenere and Syrah) were selected and examined in their free radical scavenging capacities by electron spin resonance (ESR) and spectrophotometric methods. ...
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(ELSEVIER SCIENCE BV, 2009-05-18)The reduction properties of four acceptor polipyridyl ligands modified with quinones were studied by different experimental methods, as cyclic voltammetry and ESR spectroscopy, and by theoretical calculations. ESR spectra ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2008-08)Cyclic voltammetry and electron spin resonance techniques were used in the investigation of novel 3-alkoxy- and 3-hydroxy-1-[omega-(dialkylamino)alkyl]-5-nitroindazole derivatives. A self-protonation process involving the ...
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(ELSEVIER SCIENCE BV, 2002-04-26)A computer assisted molecular modeling was used to design molecules having a shape complementary to the active site of glutathione reductase (GR) and trypanothione reductase (TR). The designed 5-nitro compound derivatives. ...
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(BLACKWELL SCIENCE LTD, 2001-04)The mechanism of copper (Cu) neurotoxicity was studied in the RCSN-3 neuronal dopaminergic cell line, derived from substantia nigra of an adult rat. The formation of a Cu-dopamine complex was accompanied by oxidation of ...
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(ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER, 2009-12)Hybrid vinylthio-, vinylsulfinyl-, vinylsulfonyl- and vinylketo-benzofuroxans developed as anti-trypanosomatid agents, against Trypanosoma cruzi and Leishmania spp., have showed low micromolar IC50 values. The synthetic ...
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(BENTHAM SCIENCE PUBL LTD, 2006-02)Free radicals may be reaction intermediates in biological systems in more situations than are presently recognized. However, progress in detecting such species by Electron Spin Resonance (ESR) has been relatively slow. ESR ...
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(WILEY-V C H VERLAG GMBH, 2004-05)New 5-(2-arylethenyl)-1,2,4-triazine N-oxide and N,N'-dioxide derivatives were synthesized in order to obtain compounds as selective hypoxic cell cytotoxins. The desired products were obtained when the 5-methyl heterocycle ...
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(JOHN WILEY & SONS LTD, 2009-06)The polar Diels-Alder (DA) reactions of 2-acetyl-1,4-benzoquinone (acBQ) with methyl substituted 1,3-butadienes have been studied using DFT methods at the B3LYP/6-31 G(d) level of theory. These reactions are characterized ...
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(WILEY-BLACKWELL PUBLISHING, INC, 2009-02)The title molecule, C14H14O3, contains two fused six-membered carbon rings with keto groups at positions 1, 4 and 5 and a gem-diethyl group at position 8. The molecule is close to planar (maximum deviation = 0.044 angstrom), ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2010-01-01)We study the thermodynamics and kinetics of the adsorption of a redox couple having quinone nature on glassy carbon electrodes. This couple is produced by the anodic oxidation of mycotoxin ochratoxin A in 10% acetonitrile ...
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(JOHN WILEY & SONS LTD, 2009-03)Introduction - Glutathione and glutathione disulfide can be determined by capillary zone electrophoresis; however, the frequent use of acidic precipitation of protein from samples prior to analysis generates an acidic ...
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(WILEY-BLACKWELL PUBLISHING, 2009-11)The title isomorphous compounds, tetra-mu-but-2-enoato-bis[diaqua(but-2-enoato)dysprosium(III)]-2,6-diaminopurine (1/2), [Dy-2(C4H5O2)(6)(H2O)(4)]center dot 2C(5)H(6)N(6), and tetra-mu-but-2-enoato-bis[diaqua(but-2-enoat ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2009-09-02)Selective oxidation of galacturonic residues of oligo and polyuronic acids by Cr-VI affords CO2/HCO2H, oxidized uronic acid, and Cr-III as final redox products. Kinetic studies show that the redox reaction proceeds through ...
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(WILEY-V C H VERLAG GMBH, 1998-11)Functionalization of isotactic poly(propylene) (PP) with dimethyl itaconate (DMI) as functional polar monomer using 2,5-dimethyl-2,5 -bis(tert-butylperoxy)hexane (L101) as radical initiator was carried out in both boiling ...
