Browsing by Author "Lemp Miranda, Else"
Now showing items 1-13 of 13
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Fuentes Barahona, Pablo César (Universidad de Chile, 2014)El metabolismo celular es un proceso natural en los organismos vivos que conduce inevitablemente a la producción de especies reactivas del oxígeno, conocidas como ROS, las cuales, son agentes oxidantes altamente reactivos ...
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Günther, S.; Lemp Miranda, Else; Zanocco Loyola, Antonio (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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Salinas Barrios, Iván Eduardo (Universidad de ChilePrograma Cybertesis, 2006)El oxígeno molecular singulete es la especie excitada de menor energía del oxígeno y se encuentra presente en los sistemas biológicos junto a otras especies reactivas del oxígeno. La alteración del balance normal de las ...
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Ruiz González, Rubén; Zanocco, Renzo P.; Gidi, Yasser; Zanocco Loyola, Antonio; Nonell, Santi; Lemp Miranda, Else (The American Society of Photobiology, 2013)In this study, we report the synthesis and photochemical behavior of a new family of photoactive compounds to assess its potential as singlet oxygen (1O2) probes. The candidate dyads are composed by a 1O2 trap plus a ...
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Nonell, Santi; Ferreras, Lourdes R.; Cañete, Alvaro; Lemp Miranda, Else; Günther Sapunar, Germán; Pizarro, Nancy; Zanocco Loyola, Antonio (AMER CHEMICAL SOC, 2008-07-18)The photophysics and photochemistry of a series of naphthoxazinones have been studied using a combination of methods ranging from steady-state and time-resolved spectroscopic techniques to product analysis. The photophysics ...
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Lemp Miranda, Else; Cañete, Alvaro; Günther Sapunar, Germán; Pizarro, Nancy; Zanocco Loyola, Antonio (ELSEVIER, 2008-09-25)The photophysical properties, the capacity to produce singlet molecular oxygen by sensitization and the photostability of a series of 20 aryloxazinones and one quinoxalinone have been evaluated using a combination of methods ...
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Silva, E.; Jopia, M.; Edwards, A.; Lemp Miranda, Else; Fuente, Julio de la; Lissi Gervaso, Eduardo (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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Rodríguez Ramírez, Jennifer Elizabeth (Universidad de Chile, 2020)En este trabajo se midió la reactividad de los flavonoides quercetina, morina, 3–hidroxiflavona, luteolina y catequina frente a O2(1Δg), en presencia de los iones metálicos Ca+2, Cu+2, Zn+2 y Fe+2, en medio homogéneo y ...
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Rodríguez Ramírez, Jennifer Elizabeth (Universidad de Chile, 2017)En este trabajo se midió y evaluó la reactividad de los flavonoides Morina y Quercetina frente a oxígeno molecular singulete, en presencia de los iones metálicos Ca+2 y Cu+2, mediante determinaciones de las constantes de ...
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Becerra,; De La Nuez,; Zanocco Loyola, Antonio; Lemp Miranda, Else; Günther Sapunar, Germán (Elsevier, 2006)A fluorescence method was employed to study the solubilizing interactions of several sucrose esters with Dioctadecyldimethylammonium chloride small unilamellar vesicles. In this paper we studied four different alkyl esters ...
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Toro, C.; Sánchez, S. A.; Zanocco Loyola, Antonio; Lemp Miranda, Else; Gratton, E.; Gunthera, G. (Elsevier, 2009-02)The solubilization of biological membranes by detergents has been used as amajor method for the isolation and purification of membrane proteins and other constituents. Considerable interest in this field has resulted ...
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Sánchez, Susana A.; Gratton, Enrico; Zanocco Loyola, Antonio; Lemp Miranda, Else; Günther Sapunar, Germán (PUBLIC LIBRARY SCIENCE, 2011-12-28)One of the several uses of sucrose detergents, as well as other micelle forming detergents, is the solubilization of different membrane proteins. Accurate knowledge of the micelle properties, including size and shape, are ...
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Ardiles,; Acevedo Acevedo, Mónica; Varas, Alejandro; Parra,; Orellana,; Santa Cruz,; Pérez,; Lemp Miranda, Else; Vargas Consuegra, Leandro Vargas; Silva Silva, Laura (1990)We studied 15 patients submitted to splenectomy. Humoral immunity was studied with protein electrophoresis and quantification of immunoglobulins; cellular immunity was studied by total and subpopulation lymphocyte counts ...