Facultad de Ciencias Químicas y Farmacéuticas: Recent submissions
Now showing items 1581-1600 of 5236
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(2002)ATPase and ADPase activities capable of hydrolyzing nucleoside di- and triphosphates in the presence of Ca2+ are present in synovial membrane of metacarpophalangeal joint mainly associated to membrane fractions. These ...
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(2002)Thermal decomposition of 1,4-dimethylnaphthalene endoperoxide (DMNE) as a source of singlet oxygen was used to measure chemical rate constants, k(R), for reactions between singlet oxygen, O-2((1)Delta(g)), and various ...
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(Instituto de la Grasa, 2001)The progression of deterioration of crisps stored at room temperature (day light and darkness), and in darkness at 40°C and -23°C (control) was evaluated. The samples were obtained from a leader industry of the chilean ...
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(2002)We have studied the O2/O2·- redox couple on the HMDE in DMSO aprotic media, obtaining optimal conditions of both oxygen concentration and scan rate in order to avoid oscillatory phenomena. By choosing the oxygen concentration ...
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(Institute of Food Technologists, 2002)Cholesterol oxidation, products (COPs) are present in biological tissues and in foods. The inhibitory effect of antioxidants, such as tocopherols, on COPs formation has been only partially investigated. The antioxidant ...
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(2002)The synthesis of new indazol-4,7-dione derivatives via 1,3-dipolar cycloaddition of diazomethane with 2,3-dimethyl-1,4-benzoquinone (2) and 1,4-naphthoquinone (7) followed by N-alkylation of the pyrazol nitrogen atom of ...
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(2002)Acaena splendens H. et A. has been used in Chilean folk medicine for the treatment of fever and inflammation. A description of the in vivo reduction of bacterial pyrogen-induced fever in rabbits and carrageenan-induced paw ...
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(2002)Both thiosemicarbazone groups of the derivative 1 of 3-deoxy-D-erythro-hexos-2-ulose underwent, on acetylation, a heterocyclization process to give (5R,5′R)-2,2′-diacetamido-4,4′-di-N-acetyl-5′-(1- deoxy-2,3,4-tri-O-acet ...
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(Harwood Academic Publishers GmbH, 2001)Intestinal epithelial cells have an active apical iron uptake system that is involved in the regulated absorption of iron. By the action of this system, intestinal cells acquire increasing amounts of iron with time. Since ...
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(2006)Silver nanowire arrays with high aspect ratios have been prepared using potentiostatic electrodeposition within the confined nanochannels of a commercial porous anodic aluminium oxide template. The nucleation and growth ...
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(2002)Four vegetable oils with different polyunsaturated/saturated fatty acid ratio (P/S): 5.2 for sunflower oil, 3.4 for canola rapeseed oil, 0.4 for a blend of palm olein and canola rapeseed oil (80:20), and 0.3 for palm olein ...
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(2002)This article presents the characterisation results of corrosion products formed on steel, zinc, copper and aluminium exposed in Antarctic corrosion stations near the coast line, and it analyses the influence of the particular ...
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(2002)The effect of Boldo and black tea infusions on the pro-oxidant effects of vitamin B-2, riboflavin (R-F), when exposed to the action of visible light was studied. The amounts of antioxidants present in Boldo and tea infusions ...
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(Elsevier Ltd, 2018)© 2017 Thymol nanoemulsions were produced by spontaneous emulsification, ultrasound, and a combination of both methods. The best result in terms of size and polydispersion was spontaneous emulsification where thymol was ...
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(John Wiley and Sons Ltd, 2018)Three different series of alkyl mannoside derivatives have been synthesized, designing the hydrophobic portion to provide different topology to the surfactant and, hence, modulating their aggregation properties. The ...
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(Elsevier B.V., 2018)© 2018 The Authors Aerobic metabolism brings inexorably the production of reactive oxygen species (ROS), which are counterbalanced by intrinsic antioxidant defenses avoiding deleterious intracellular effects. Redox balance ...
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(Royal Society of Chemistry, 2017)The catalytic performance of the novel framework {[Cu3Lu2(ODA)6(H2O)6]·10H2O}n was tested in the oxidation of alkenes and benzylic hydrocarbons, using tert-butyl hydroperoxide (TBHP) and molecular oxygen (O2) as oxidants. ...
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Magnetic behaviour of bimetallic layered phases M′0.2Mn0.8PS3·0.25 H2O (M′ = ZnII, CuII, NiII, CoII) (Royal Society of Chemistry, 2017)In this work the magnetic properties of bimetallic phases M'0.2Mn0.8PS3 center dot 0.25H(2)O (M' = Co-II, Ni-II, Cu-II or Zn-II) have been explored and compared with those of the pristine phase MnPS3. Magnetic susceptibility, ...
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(Institution of Chemical Engineers, 2017)Olive leaves extract (OLE) was microencapsulated with inulin (OLE-IN) by spray-drying using a central composite design. Oleuropein encapsulation efficiency and recovery values were over 87% in the OLE-IN microparticles ...
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(Sociedad Chilena de Quimica, 2017)A variety of organic compounds and their metabolites used in pharmaceutical and personal care products (PPCP´s) are continuously introduced into the environment by domestic or industrial wastewater. Solid phase extraction ...
