Browsing by Author "f595fa7a-6454-4556-907c-8dc9d3a8f73c"
Now showing items 1-12 of 12
-
Aguirre, María J.; Isaacs, Mauricio; Matsuhiro, Betty; Mendoza, Leonora; Santos, Leonardo S.; Torres, Simonet (2011)Anthocyanins in aged Cabernet Sauvignon red wines were studied by HPLC-MS. The major anthocyanin in 6, 7, and 8 year old red wine extracts was the dimer vitisin A produced by condensation of malvidin-3-O-glucoside mediated ...
-
Caruso, Francesco; Mendoza, Leonora; Castro, Paulo; Cotoras, Milena; Aguirre, Maria; Matsuhiro, Betty; Isaacs, Mauricio; Rossi, Miriam; Viglianti, Angela; Antonioletti, Roberto (2011)The antifungal effect of three furyl compounds closely related to resveratrol, (E)-3,4,5-trimethoxy-β-(2-furyl)-styrene (<bold>1</bold>), (E)-4-methoxy-β-(2-furyl)-styrene (<bold>2</bold>) and ...
-
Mendoza, Leonora; Matsuhiro, Betty; Aguirre, María J.; Isaacs, Mauricio; Sotés, Gastón; Cotoras, Milena; Ricardo, Melo (Sociedad Chilena de Quimica, 2011)The success of Chilean wine in the international market has led to an important attention on the development of science and technology for wine differentiation, productivity, and quality. In order to report the profile of ...
-
Matsuhiro, Betty; Torres, Rodrigo; Zúñiga, Elisa A.; Aguirre, Maria J.; Mendoza, Leonora; Isaacs, Mauricio (Sociedad Chilena de Quimica, 2009)Low molecular weight carbohydrates (LMW) were determined in a Chilean Cabernet Sauvignon red wine by the Dubois method, a specific method for the determination of carbohydrates. Dialysis treatment of red wine allowed the ...
-
Calfumán, Karla; Aguirre, Maria Jesús; Cañete Rosales, Paulina; Bollo Dragnic, Soledad; Llusar, Rosa; Isaacs, Mauricio (Elsevier Ltd, 2011)This paper describes the electrochemical reduction of nitrite ion in neutral aqueous solution mediated by tetraruthenated metalloporphyrins (Co(II), Ni(II) and Zn(II)) electrostatically assembled onto a Nafion film previously ...
-
Cáceres, César; Martínez, Manuel; Rodríguez, Carlos; Dreyse, Paulina; Ortega, Victoria; Isaacs, Mauricio (Elsevier B.V., 2014)The preparation of an ITO (Indium Tin Oxide) modified electrode with a mixed valence CoIII/FeII complex is described. The ITO electrode was initially modified with Au nanoparticles by dip coating in order to obtain and ...
-
Calfuman, Karla; Honores, Jessica; Guzmán, Diego; Ohlbaum, Macarena; Armijo, Francisco; Río, Rodrigo del; Isaacs, Mauricio (Wiley, 2017)This work describes the electrochemical reduction of carbon dioxide in aqueous solution mediated by tetraruthenated metal-loporphyrins (TRP; Co(II) and Zn(II)) in Nafion (Nf) and polyvinyl chloride (PVC) as a support. The ...
-
García, Camilo; Domínguez, Cristian; Aliaga, Alvaro; Matsuhiro, Betty; Mendoza, Leonora; Aguirre, María J.; Isaacs, Mauricio (2011)A new conducting film derived from the complex [Fe (diaphen)3]2+, (diaphen=5,6-diamino-1,10-phenanthroline) was electropolymerized by cyclic voltammetry onto a glassy carbon electrode. Poly-[FeII (diaphen)3] was studied ...
-
Dreyse, Paulina; Isaacs, Mauricio; Calfumán, Karla; Cáceres, César; Aliaga, Alvaro; Aguirre, María Jesús; Villagra, Diego (2011)This work describes the preparation of modified electrodes with Poly-tetraruthenated porphyrin. Also, a detailed Raman and electrochemical characterization of these surfaces is shown. Glassy carbon electrodes were modified ...
-
San Martín, Cristian; Dreyse, Paulina; García, Camilo; Calfumán, Karla; Villagra, Diego; Isaacs, Mauricio (Sociedad Chilena de Quimica, 2007)This paper describes the electrochemical reduction of nitrite ion in basic media 0.2M KHC03, with glassy carbon or ITO electrodes modified with a conducting polymer derived from Co(II)tetra-3-aminophenyl-porphyrin. Cyclic ...
-
Gallardo Fuentes, Sebastián; Contreras Ramos, Renato; Isaacs, Mauricio; Honores, Jessica; Quezada, Diego; Landaeta, Esteban; Ormazábal Toledo, Rodrigo (Elsevier, 2016)We herein present a systematic study on the mechanism of CO2 electro-cycloaddition to propylene oxide, using both experimental and theoretical procedures. The study considers the analysis of mild and sustainable conditions ...
-
García, Camilo; Villagra, Diego; Caruso, Francesco; Rossi, Miriam; Matsuhiro, Betty; Mendoza, Leonora; Aguirre, María J.; Isaacs, Mauricio (2009)The complex [FeII(Imz-phen)3](PF6)2, (Imz-phen = imidazolidine-[4,5-f]-1,10-phenanthroline) has been prepared and characterized using X-ray diffraction, UV–vis and IR spectroscopy, elemental analysis, fast atomic bombardment ...