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     <dc:title xml:lang="fr">Complexes métal-bis(dithiolène) photothermiques comme agents anticancéreux moléculaires : synthèse, caractérisation, formulation et essais in vivo de complexes de nickel, palladium, platine et or</dc:title>
     <dcterms:alternative xml:lang="en">Photothermal metal-bis(dithiolene) complexes as molecular anticancer agents : synthesis, characterization, formulation and in vivo tests of nickel, palladium, platinum and gold complexes</dcterms:alternative>
     <dc:subject xml:lang="fr">complexes métal-bis(dithiolène)</dc:subject><dc:subject xml:lang="fr">photothermie NIR-II</dc:subject><dc:subject xml:lang="fr">indice photothermique</dc:subject><dc:subject xml:lang="fr">nanoparticules polymères</dc:subject><dc:subject xml:lang="fr">irradiation in vivo</dc:subject><dc:subject xml:lang="fr">thérapie du cancer</dc:subject>
     <dc:subject xml:lang="en">metal-bis(dithiolene) complexes</dc:subject><dc:subject xml:lang="en">NIR-II photothermy</dc:subject><dc:subject xml:lang="en">photothermal index</dc:subject><dc:subject xml:lang="en">polymeric nanoparticles</dc:subject><dc:subject xml:lang="en">in vivo irradiation</dc:subject><dc:subject xml:lang="en">cancer therapy</dc:subject>
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						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="02742409X">Anticancéreux</tef:elementdEntree>
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						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="030024013">Complexes métalliques</tef:elementdEntree>
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						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="02730731X">Cancer -- Thérapeutique</tef:elementdEntree>
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     <dcterms:abstract xml:lang="fr">La thérapie photothermique (PTT) est une thérapie émergente consistant à détruire des cellules cancéreuses par hyperthermie localisée, grâce à l'irradiation d'un agent photothermique (PTA) exogène par un laser proche infrarouge. Depuis plusieurs années, les complexes de coordination moléculaires s'imposent comme des incontournables parmi les PTAs pour la PTT. Cette thèse, qui s'inscrit dans cette dynamique, décrit les travaux menés autour de complexes métal-bis(dithiolène) M(dt)2 réputés pour leur effet photothermique remarquable dans le proche infrarouge (NIR).Ce travail a commencé par la synthèse d'une chimiothèque de M(dt)2 à centre métallique et ligands variés (M= Ni, Pd, Pt, Au). Leurs propriétés optiques et photothermiques ont ensuite été quantifiées, pour démontrer qu'ils sont particulièrement performants en termes d'absorption NIR, d'élévation de température et de stabilité chimique et thermique.
Un classement de ces complexes, grâce à une grandeur récemment définie, l'indice photothermique IPT, a permis de sélectionner les M(dt)2 les plus performants de la chimiothèque. Ces candidats-PTAs ont été encapsulés avec des polymères biocompatibles et biodégradables pour former des nanoparticules (NPs) dispersables dans l'eau, non toxiques et photothermiques sous irradiation NIR. Ces NPs ont été utilisées pour effectuer des tests de photothermie in vitro sur cellules cancéreuses et in vivo sur des embryons de poisson-zèbre. L'ensemble de ces travaux démontre que les complexes M(dt)2 sont des composés moléculaires très prometteurs pour la PTT du cancer.</dcterms:abstract>
     <dcterms:abstract xml:lang="en">The photothermal therapy (PTT) is an ermerging therapy which aims to destroy cancer cells via a localized hyperthermia, through the irradiation of an exogenous photothermal agent (PTA) by a near infrared (NIR) laser. For many years, molecular coordination complexes have appeared as promising PTAs for the PTT. This PhD thesis, wich takes part in this trend, describes a work about metal-bis(dithiolene) complexes M(dt)2, well known for their strong photothermal effect in the near infrared (NIR). This work started with the synthesis of a M(dt)2 chemical library, with various metallic center and ligands (M= Ni, Pd, Pt, Au). Their optical and photothermal properties were quantified, and thus were proven to be very good in terms of NIR absorption, heating and chemical and thermal stability. A ranking of these complexes was done, thanks to a recently defined photothermal index IPT. It allowed us to select the most efficients M(dt)2 within the chemical library. The PTAs-candidates were encapsulated with biocompatible and biodegradable polymers to form nanoparticles (NPs), that are water dispersible, non toxic and photothermally active under NIR irradiation. These NPs were used for therapeutic tests under NIR laser irradation on tumoral cells (in vitro) and zebra-fish embryos (in vivo). This overall work proves that these molecular complexes M(dt)2 are very for cancer PTT.</dcterms:abstract>
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       <tef:nom>Pluta</tef:nom>
       <tef:prenom>Jean-Baptiste</tef:prenom>
       
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