Browsing by Title Facultad de Ciencias Químicas y Farmacéuticas
Now showing items 451-470 of 4844
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(Universidad de Chile, 2022)Existe una contaminación silenciosa que es desconocida para una gran parte de la comunidad, esta es la contaminación por compuestos orgánicos volátiles (COV), los que son desechados en los alrededores de plantas de ...
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(1992)El extraordinario desarrollo de las ciencias y la tecnología, que se advierte en todos los campos del saber y de las actividades humanas, constituye una de las características más notables de la segunda mitad del presente ...
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(1993)La integración de los aspectos físicos y fisicoquímicos de los fármacos y de las formas farmacéuticas con los fenómenos biológicos asociados a la administración de ellos al organismo, ha dado origen a enfoques de gran ...
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(Universidad de Chile, 2009)La aplicación de biosólidos, ha sido utilizada como una alternativa de bajo costo para la recuperación de los suelos agrícolas degradados, por su importante contenido de macro y micronutrientes y de materia orgánica. Por ...
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(Universidad de Chile, 2014)Una serie de alteraciones promueven la transformación de una célula normal a una neoplásica. Entre estas destacan: la resistencia a la muerte celular, una sostenida señalización proliferativa, una evasión al sistema inmune, ...
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(Elsevier, 2013)Tropospheric ozone is a secondary pollutant whose primary sources are volatile organic compounds and nitrogen oxides. The national standard is exceeded on a third of summer days in some areas of the Chilean Metropolitan ...
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(1997)Chilean folklore medicine uses Trevoa trinervis Miers. (Rhamnaceae), 'trevo', for the treatment of inflammation caused by wounds and burns. The antiinflammatory and antipyretic activities of crude methanol, aqueous and ...
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(2012)A series of fused tri- and tetracyclic indazoles and analogues compounds (NID) with potential antiparasitic effects were studied using voltamperometric and spectroscopic techniques. Nitroanion radicals generated by cyclic ...
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(ELSEVIER SCI IRELAND LTD, 1997-07)The methanolic extract of the aerial portion of Chenopodium chilense Schrad., used in Chilean traditional medicine as a remedy for stomach-ache, has been found to exert the major spasmolytic activity in acetylcholine ...
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(SOC BIOLGIA CHILE, 2008)This study describes the effect of novel 6-Arylbenzimidazo[1,2-c]quinazoline derivatives as tumor necrosis factor alpha (TNF-alpha) production inhibitors. The newly synthesized compounds were tested for their in vitro ...
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(Royal Society of Chemistry, 2017)Developing methods with a low environmental impact for nanoparticle synthesis remains one of the greatest challenges in nanotechnology. In this context, biomimetic and biological methods have emerged as green chemistry ...
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(Biomed Central, 2016)Background: Fluorescent nanoparticles or quantum dots (QDs) have been intensely studied for basic and applied research due to their unique size-dependent properties. There is an increasing interest in developing ecofriendly ...
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(Universidad de Chile, 2023)El nuevo coronavirus (SARS-CoV) causante del síndrome respiratorio agudo grave llamado COVID-19, ha provocado millones de muertes causando una gran crisis sanitaria. Por esta razón, es necesaria la identificación de ...
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(Universidad de Chile, 2020)Introducción: El tratamiento estándar de primera línea en pacientes con cáncer gástrico consiste en regímenes de quimioterapias combinadas, en donde se incluyen generalmente fluoropirimidinas y platinos, sin embargo, la ...
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(NLM (Medline), 2018)Background: Numerous studies have proposed the use of fluorescent semiconductor nanoparticles or quantum dots (QDs) as novel tools to label cells and tumors. However, QD applications are limited by their toxicity in ...
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(2012)Multiple applications of nanotechnology, especially those involving highly fluorescent nanoparticles (NPs) or quantum dots (QDs) have stimulated the research to develop simple, rapid and environmentally friendly protocols ...
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(Chile, Instituto de Investigaciones Agropecuarias, 1987)A technique was studied and later implemented to determine the amount of polyphenoloxidase removable from soils. This enzymatic activity favors oxidation processes such as those of phenols. These are the foundations for ...
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(Instituto de Investigaciones Agropecuarias, 1987-07)A first prospection was made of the content and identity of the carbohydrates in Chilean soils. Seven volcanic and two alluvial soils were selected. Determinations, by the Anthrone method, were done of free carbohydrates ...
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(Instituto de Investigaciones Agropecuarias, 1988-04)Dehydrogenase and respiratory activities were studies in six soils, five of volcanic origin and the other alluvial, as a reference. Dehydrogenases activity was measured by the reduction of 2, 3, 5- Tryphenyl Tetrazolium ...
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(Universidad de Chile, 2022)Es importante estudiar la historia de las ciencias experimentales y su impacto en Chile para entender la relevancia social e institucional de la investigación científica en el país. En 1957, se crea la carrera de Bioquímica ...