{"id":68347,"date":"2018-03-09T22:56:48","date_gmt":"2018-03-09T22:56:48","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/superoxido-dismutasas-abioticas\/"},"modified":"2018-03-09T22:56:48","modified_gmt":"2018-03-09T22:56:48","slug":"superoxido-dismutasas-abioticas","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/espectroscopia-de-absorcion\/superoxido-dismutasas-abioticas\/","title":{"rendered":"Super\u00f3xido dismutasas abi\u00f3ticas"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Alejandra Sornosa Ten <\/strong><\/h2>\n<p>La presente investigaci\u00f3n tiene como eje central la s\u00edntesis y caracterizaci\u00f3n de nuevos ligandos poliam\u00ednicos de naturaleza tripodal, as\u00ed como el estudio de su qu\u00edmica de coordinaci\u00f3n con los iones met\u00e1licos de inter\u00e9s biol\u00f3gico cu(ii), zn(ii) y mn(ii). En el estudio se han evaluado las caracter\u00edsticas termodin\u00e1micas y espectrosc\u00f3picas de los complejos formados en disoluci\u00f3n acuosa. En el caso del cu(ii) se ha analizado asimismo, la cin\u00e9tica de formaci\u00f3n y disociaci\u00f3n de los complejos formados. Finalmente, se ha evaluado la capacidad de los complejos de cu(ii) como mim\u00e9ticos de sod. la memoria presentada se estructura en cinco cap\u00edtulos. En el primero de ellos, se recoge la s\u00edntesis y caracterizaci\u00f3n de los ligandos preparados. La estructura de los ligandos se basa en el ligando tris(2-aminoetil)amina con sus tres brazos extendidos con unidades propilamina y posteriormente funcionarizado con grupos imidazol (t1) o piridinas sustituidas en posiciones 2, 3 y 4 (t2, t3 y t4). En el segundo cap\u00edtulo se analiza su comportamiento \u00e1cido-base mediante potenciometr\u00eda, rmn y espectroscopia uv-vis. En el tercer cap\u00edtulo, se ha estudiado por potenciometr\u00eda, espectrofotometr\u00eda y espectrometr\u00eda de masas la interacci\u00f3n con cu(ii), zn(ii) y mn(ii). En el caso del cu(ii) se ha evidenciado la formaci\u00f3n tanto de especies mono-, dinucleares como de especies trinucleares. En el cuarto cap\u00edtulo se han estudiado, mediante la t\u00e9cnica de flujo detenido, tanto los mecanismos de formaci\u00f3n como los de disociaci\u00f3n de los complejos de cu(ii) de las cuatro poliaminas tripodales. En general la formaci\u00f3n de los complejos es r\u00e1pida y transcurre mediante un mecanismo de car\u00e1cter disociativo de tipo eigen-wilkins.  en la \u00faltima parte de la tesis se ha determinado la actividad super\u00f3xido dismutasa de los complejos formados con cu(ii).<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Super\u00f3xido dismutasas abi\u00f3ticas<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Super\u00f3xido dismutasas abi\u00f3ticas <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Alejandra Sornosa Ten <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Universitat de val\u00e9ncia (estudi general)<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 28\/11\/2008<\/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>espa\u00f1a Monson\u00eds Garc\u00eda<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: henryk Kozlowski <\/li>\n<li>jean-fran\u00ed\u00a7ois Nierengarten (vocal)<\/li>\n<li>anne-marie Albrecht-gary (vocal)<\/li>\n<li>Manuel Garc\u00eda basallote (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Alejandra Sornosa Ten La presente investigaci\u00f3n tiene como eje central la s\u00edntesis y caracterizaci\u00f3n de nuevos ligandos [&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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