Browsing by Title Facultad de Ciencias
Now showing items 5249-5268 of 8166
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(Sociedad Chilena de Química, 2006-09)Benzyltetrahydroisoquinoline (BTHIQ) molecules are able to adopt widely differing conformations that depend on the presence or absence of N-substituents. To assess the possible role of BTHIQ conformation on the affinity ...
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(1990)An NADP+-dependent D-xylose dehydrogenase from pig liver cytosol was purified about 2000-fold to apparent homogeneity with a yield of 15% and specific activity of 6 units/mg of protein. An M(r) value of 62000 was obtained ...
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(Lippincott Williams and Wilkins, 2001)In vertebrate olfactory receptor neurons, NO synthase (NOS) has been detected in embryonic and early postnatal stages. However, expression of the enzyme in the mature epithelium is still controversial. We analyzed the ...
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(Springer, 2010)In this work, the modification of a glassy carbon electrode with tetraruthenated porphyrins electrostatically assembled onto a Nafion film, previously adsorbed on the electrode surface, is reported. This modified electrode ...
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(AMER CHEMICAL SOC, 2006-06-27)We report the observation of urchin-like nanostructures consisting of high-density spherical nanotube radial arrays of vanadium oxide nanocomposite, successfully synthesized by a simple chemical route using an ethanolic ...
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(Universidad de Chile, 2018)En esta Tesis se propuso la preparación y caracterización de cristales de compuestos de inclusión (CI) de β-ciclodextrina (β-CD) con moléculas huéspedes que poseen un grupo funcional –COOH y su interacción con nanobarras ...
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(2012)Collision processes between single gold and rhodium atoms and gold and rhodium nanoclusters, respectively, are used to study the interplay between the large elastic energies and the much smaller magnetic interactions. The ...
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(Universidad de Chile, 2016)
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(Sociedad Chilena de Química, 2017)Single crystals of 1,3-bis(cyanomethoxy)calix[4]arene (1) were grown from Chloroform/Methanol mixture and these were nanodecorated with colloidal gold nanoparticles (AuNps). The single crystals were then characterized by ...
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(2023)La reducción y estabilización de nanopartículas (NPs) metálicas es determinante para su posterior aplicación en medicina, en la industria del petróleo y como tratamiento alternativo para la remoción de contaminantes en ...
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(Elsevier, 2020)Polycrystalline hollow nanoparticles present a unique combination of strength and flexibility. However, the exact role displayed by their grain structure in mechanical properties has not been yet fully understood. Here, ...
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(Universidad de Chile, 2020)El creciente interés por el uso de materiales que generen el menor impacto al medio ambiente y que permitan versatilidad en su uso, han hecho que las nanoarcillas sean una opción altamente viable, gracias a sus propiedades ...
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(Universidad de Chile, 2008)
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(Universidad de Chile, 2007)
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(Universidad de Chile, 2014)
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(Elsevier, 2016)In this work, we have studied the Pb2+ sorption capacity of Zeolite (Z) and Montmorillonite (Mt) functionalized with nanoscale zero-valent iron (nZVI), at 50% w/w, obtained by means of an impregnating process with a solvent ...
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(2011)Pyrolysis of molecular precursors containing vanadium organometallic and cyclic phosphazene affords mixtures of nanostructured vanadium oxides and pyrophosphates. The products from the molecular precursor [N3P3(OC6H5)5OC ...
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(Elsevier Ltd., 2009-02-08)A series of naphthylisopropylamine and N-benzyl-4-methylthioamphetamine derivatives were evaluated as monoamine oxidase inhibitors. Their potencies were compared with those of a series of amphetamine derivatives, to test ...
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(2014)In this paper, an aspect of the national discourse of the early twentieth century in the territory of Tacna and Arica, in its sovereignty dispute between Chile and Peru, is analyzed. The corpus of the analysis focuses on ...
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(Universidad Austral de Chile, Facultad de Ciencias Forestales, 2020)Native forest replacement by exotic forestry plantations and fragmentation may have different consequences for biodiversity. In the transition zone between the Mediterranean and Temperate Regions of Chile, native forests ...