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<dc:title xml:lang="en">In situ reactions in lipid nanostructures for bioimaging and therapy</dc:title>
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<dc:subject xml:lang="fr">Administration de médicaments</dc:subject>
<dc:subject xml:lang="fr">Chimie covalente dynamique</dc:subject>
<dc:subject xml:lang="fr">Nano-émulsions</dc:subject>
<dc:subject xml:lang="fr">Libre médicaments avec contrôle</dc:subject>
<dc:subject xml:lang="fr">Désintoxication</dc:subject>
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<dc:subject xml:lang="en">Dynamic covalent chemistry</dc:subject>
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<dcterms:abstract xml:lang="fr">La chimie covalente dynamique a montré un énorme potentiel d'application dans le domaine de l'administration de médicaments. L'objectif de ce travail de doctorat est d'utiliser la chimie covalente dynamique comme outil pour trouver de nouvelles voies d'administration de médicaments. Les deux premières études concernent la conception d'un système de nano-émulsions fonctionnelles capable de libérer des médicaments/colorants utilisant une cétone libre (aldéhyde) avec contrôle du pH et de les encapsuler par réaction in situ directement dans le noyau gras des nano-émulsions. Sur la base de ce concept, d'extraction de médicaments/colorants de la peau de poulet et de désintoxication cellulaire in vitro ont également été tentées. La troisième étude est consacrée au développement d'une méthodologie universelle basée sur la réaction de modification des nano-émulsions in situ avec une surface d'anticorps pour cibler les cellules cancéreuses. Enfin une dernière étude porte sur une nouvelle technique consistant à diriger des médicaments/colorants cétoniques libres vers des organites spécifiques et voir l'influence des effets PDT.</dcterms:abstract>
<dcterms:abstract xml:lang="en">Dynamic covalent chemistry showed huge application potential in the field of drug delivery. This Ph.D. work aims to use dynamic covalent chemistry as a tool for finding novel ways of drug delivery. The first two studies concern the designing of a functional nano-emulsions system that is capable of releasing free ketone (aldehyde) drug/dyes under low pH and encapsulating them through in situ reaction directly in the oil core of nano-emulsions. Based on the concept, extraction of dyes/drugs from chicken skin, and in vitro cell detoxification were also attempted. The third study concerns the development of a universal methodology based on in situ reaction for functionalization nano-emulsions with antibody surfaces for targeting cancer cells. The last study is dedicated to a novel technique of directing free ketone dyes/drugs to specific organelles for enhanced PDT effects.</dcterms:abstract>
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