{"id":23157,"date":"2018-03-09T09:13:37","date_gmt":"2018-03-09T09:13:37","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/determinacion-voltamperometrica-de-rifamicinas-con-pola%c2%admeros-molecularmente-impresos\/"},"modified":"2018-03-09T09:13:37","modified_gmt":"2018-03-09T09:13:37","slug":"determinacion-voltamperometrica-de-rifamicinas-con-pola%c2%admeros-molecularmente-impresos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/oviedo\/determinacion-voltamperometrica-de-rifamicinas-con-pola%c2%admeros-molecularmente-impresos\/","title":{"rendered":"Determinaci\u00f3n voltamperom\u00e9trica de rifamicinas con pol\u00edmeros molecularmente impresos"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Sonia Guti\u00e9rrez Fern\u00e1ndez <\/strong><\/h2>\n<p>En esta tesis doctoral se presentan las investigaciones realizadas con el objetivo de ampliar el campo de aplicaci\u00f3n de los pol\u00edmeros molecularmente impresos tanto en tipos de pol\u00edmeros y mol\u00e9culas molde compatibles con el proceso de impresi\u00f3n molecular como en estrategias que permitan combinar las ventajas de estos pol\u00edmeros en cuanto a selectividad y estabilidad con la elevada sensibilidad de las t\u00e9cnicas voltamperom\u00e9tricas.  en primer lugar se ha demostrado que las rifamicinas, antibi\u00f3ticos macroc\u00edclicos, pueden utilizarse como mol\u00e9culas molde en procesos de impresi\u00f3n molecular de pol\u00edmeros a pesar de su masa molecular relativamente alta. En este trabajo se propone un ensayo de uni\u00f3n para la detecci\u00f3n selectiva de rifamicina sv, utilizando como t\u00e9cnicas de detecci\u00f3n la voltamperometr\u00eda de adsorci\u00f3n sobre electrodos de pasta de carbono y electrodos de pasta de carbono modificados \u00abin situ\u00bb con tensoactivos i\u00f3nicos, que permiten detectar concentraciones de rifamicinas de hasta 3&#215;10-11 m y 6&#215;10-11 m respectivamente. El ensayo de uni\u00f3n desarrollado en medio acuoso mostr\u00f3 excelentes caracter\u00edsticas en cuanto a selectividad incluso superiores a las presentadas por los receptores biol\u00f3gicos.  en segundo lugar se ha demostrado que es posible preparar pel\u00edculas de polifosfazenos lineales molecularmente impresas, depositadas por evaporaci\u00f3n de disoluciones del pol\u00edmero preformado en tetrahidrofurano que contienen rifamicina sv como mol\u00e9cula molde. Dichas pel\u00edculas se han utilizado como elemento de reconocimiento molecular para el desarrollo de un sensor voltamperom\u00e9trico de este antibi\u00f3tico.  finalmente, se ha demostrado que la rifamicina sv se incorpora a pel\u00edculas polim\u00e9ricas de fenol y poliortofenilendiamina que se obtienen mediante electropolimerizaci\u00f3n de sus mon\u00f3meros en presencia del antibi\u00f3tico, de forma que la respuesta voltamperom\u00e9trica de los electrodos modificados con estas pel\u00edculas ofrecen ci<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Determinaci\u00f3n voltamperom\u00e9trica de rifamicinas con pol\u00edmeros molecularmente impresos<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Determinaci\u00f3n voltamperom\u00e9trica de rifamicinas con pol\u00edmeros molecularmente impresos <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Sonia Guti\u00e9rrez Fern\u00e1ndez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Oviedo<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 28\/05\/2003<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li> Miranda Ordieres Arturo Jos\u00e9<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: paulino Tu\u00f1\u00f3n blanco <\/li>\n<li>Manuel Sastre de vicente (vocal)<\/li>\n<li>Mar\u00eda   encarnacion Lorenzo abad (vocal)<\/li>\n<li>rosa Mar\u00eda Alonso rojas (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Sonia Guti\u00e9rrez Fern\u00e1ndez En esta tesis doctoral se presentan las investigaciones realizadas con el objetivo de ampliar [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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