Browsing by Author "201-0010582"
Now showing items 21-40 of 62
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Bollo Dragnic, Soledad; Muñoz, L.; Núñez Vergara, Luis; Squella Serrano, Juan (WILEY-V C H VERLAG GMBH, 2000-03)Tacrine, 9-amino-1,2,3,4-tetrahydroacridine, an antialzheimer's disease agent was electrochemically studied and a polarographic method For its quantitative determination in pharmaceuticals was developed. Tacrine was ...
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Núñez Vergara, Luis; Farías Oddone, Daniel Rodrigo; Bollo Dragnic, Soledad; Squella Serrano, Juan (ELSEVIER SCIENCE, 2001-01)This paper reports the feasibility of free radicals formation from flutamide by using cyclic voltammetry. The electrochemical characteristics and the reactivity of the one-electron reduction product from flutamide in mixed ...
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Fuente Salvat, Elizabeth de la; Villagra, G.; Bollo Dragnic, Soledad (WILEY-V C H VERLAG GMBH, 2007-07)We studied the reactivity of peroxynitrite and different nucleic acid molecules using DNA electrochemical biosensors. SIN-1 (3-morpholinosydnonimine) has been used for the simultaneous generation of NO- and superoxide, ...
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Núñez Vergara, Luis; Bontá, M.; Sturm Schaub, Juan; Navarrete Encina, Patricio; Bollo Dragnic, Soledad; Squella Serrano, Juan (ELSEVIER SCIENCE, 2001-06-15)A comprehensive study of the electrochemical reduction, in different electrolytic media, of two nitroso compounds, i.e. ortho- and meta-nitrosotoluene derivatives has been carried out. Furthermore, UV-vis and EPR spectroscopic ...
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Bollo Dragnic, Soledad; Gunckel, S.; Núñez Vergara, Luis; Chauviere, G.; Squella Serrano, Juan (WILEY-V C H VERLAG GMBH, 2005-02)The electrochemical behavior of three different megazol analogues substituted at position 4 and their comparison with the parent compound megazol in protic and aprotic media by cyclic voltarnmetry, Tast and differential ...
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Electrochemical study of nitrostilbene derivatives: nitro group as a probe of the push-pull effect Bollo Dragnic, Soledad; Núñez Vergara, Luis; Soto Bustamante, Eduardo; Squella Serrano, Juan (ELSEVIER SCIENCE, 2000-09-29)This paper reports electrochemical (tast polarography, differential pulse polarography, cyclic voltammetry) and spectroscopic investigations covering a series of stilbene derivatives having either one or two electron-donating ...
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Núñez Vergara, Luis; Sturm Schaub, Juan; Olea Azar, Claudio; Navarrete Encina, Patricio; Bollo Dragnic, Soledad; Squella Serrano, Juan (HARWOOD ACAD PUBL GMBH, 2000)This paper deals with the reactivity of the nitro radical anion electrochemically generated from nitrofurantoin with glutathione. Cyclic voltammetry (CV) and controlled potential electrolysis were used to generate the nitro ...
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Retamales Castro, Pía (Universidad de ChileCyberDocs, 2010)
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Bollo Dragnic, Soledad; Ferreyra, Nancy F.; Rivas, Gustavo A. (WILEY-V C H VERLAG GMBH, 2007-04)We report on the analytical performance of glassy carbon (GCE) electrodes modified with a dispersion of multiwall carbon nanotubes (CNT) in chitosan (CHIT) for the quantification of DNA. The electroanalytical response of ...
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Calfumán, Karla; Quezada, Diego; Isaacs, Mauricio; Bollo Dragnic, Soledad (Wiley & Sons, 2015)The incorporation of carbon nanotubes to a Nafion/tetraruthenated cobalt porphyrin/glassy carbon electrode (GC/Nf/CoTRP vs GC/Nf/CNTCoTRP) enhanced the amperometric determination of hydrogen peroxide. Both electrodes ...
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Osorio Paredes, Caterinne Valeska (Universidad de ChilePrograma Cybertesis, 2008)
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Pérez Ortiz, María Magdalena (Universidad de ChileCyberDocs, 2008)
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Turchán Labbé, Mariella Jéssica (Universidad de Chile, 2006)
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Araya Quijada, Mauricio Antonio (Universidad de Chile, 2008)En la presente memoria se informan los resultados del comportamiento electroquímico y espectrofotométrico del complejo de inclusión formado por la interacción de bentazona con β-ciclodextrina (β-CD) y sulfobutileter-β-ci ...
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Catalán Díaz, Mabel Elizabeth (Universidad de Chile, 2007)En esta Memoria se informa el estudio de la interacción en solución de nuevas moléculas benzimidazólicas, 2-(o-nitrofenil)-benzimidazol (NB) y N-benzoil-2-(onitrofenil)-benzimidazol (BNB) con ADN. Para esto, se trabajó ...
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Jalit, Yamile; Rodríguez, Marcela C.; Rubianes, María D.; Bollo Dragnic, Soledad; Rivas, Gustavo A. (WILEY-V C H VERLAG GMBH, 2008-08)We report the analytical performance of glassy carbon electrodes (GCE) modified with a dispersion of multiwall carbon nanotubes (MWCNT) in polylysine (Plys) (GCE/MWCNT-Plys). The resulting electrodes show an excellent ...
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Primo, Emiliano N.; Bollo Dragnic, Soledad; Rubianes, María D.; Rivas, Gustavo A. (Pergamon-Elsevier Science LTD, 2018)This work is focused on the critical analysis of the non-covalent modification of a thiolated-gold surface with different grapheneous materials and the covalent attachment of bovine serum albumin (BSA) as a model protein. ...
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Cañete Rosales, Paulina; Ortega, Valeria; Álvarez Lueje, Alejandro; Bollo Dragnic, Soledad; González, Mónica; Ansón, Alejandro; Martínez, María Teresa (Elsevier, 2012)The influence of chemical oxidation on the electrochemical behavior against hydrogen peroxide of long and short multi-walled carbon nanotubes (MWCNT) has been investigated. Different degrees of oxidation with a sulfo-nitric ...
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Sierpe, Rodrigo; Kogan, Marcelo J.; Bollo Dragnic, Soledad (MDPI, 2020)Prothrombin-related thrombophilia is a genetic disorder produced by a substitution of a single DNA base pair, replacing guanine with adenine, and is detected mainly by polymerase chain reaction (PCR). A suitable alternative ...
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Argüello da Silva, Jacqueline; Núñez Vergara, Luis; Bollo Dragnic, Soledad; Squella Serrano, Juan (ELSEVIER SCIENCE SA, 2006-09)Three new nitrofuryl substituted 1,4-dihydropyridine derivatives were electrochemically tested in the scope of newly found compounds useful as chemotherapeutic alternative to the Chagas' disease. All the compounds were ...