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     <dc:title xml:lang="fr">Les complexes Ni-bis (dithiolène) pour des applications en science des matériaux et en biotechnologies</dc:title>
     <dcterms:alternative xml:lang="en">Ni-bis(dithiolene) complexes for application in science materials and biotecnologies</dcterms:alternative>
     <dc:subject xml:lang="fr">Complexes Ni-bis(dithiolène) neutres</dc:subject><dc:subject xml:lang="fr">thérapie photothermique</dc:subject><dc:subject xml:lang="fr">libération contrôlée</dc:subject><dc:subject xml:lang="fr">nanoparticules polymériques</dc:subject><dc:subject xml:lang="fr">liposomes</dc:subject><dc:subject xml:lang="fr">métallogels</dc:subject>
     <dc:subject xml:lang="en">Neutral Ni-bis(dithiolene) complexes</dc:subject><dc:subject xml:lang="en">photothermal therapy</dc:subject><dc:subject xml:lang="en">controlled release</dc:subject><dc:subject xml:lang="en">polymeric nanoparticles</dc:subject><dc:subject xml:lang="en">liposomes</dc:subject><dc:subject xml:lang="en">metallogels</dc:subject>
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     <dcterms:abstract xml:lang="fr">Ce travail démontre l'utilité des propriétés photothermiques dans le proche Infrarouge (NIR) des complexes de nickel-bis(dithiolène) neutres pour des applications en science des matériaux et biotechnologies. Des complexes Ni-bis(dithiolène) neutres hydrophiles et hydrophobes ont été élaborés et leur effet photothermique, sous irradiation laser NIR, a été quantifié pour la première fois. Grâce à cette propriété remarquable et à leur grande stabilité sous irradiation, il a été mis en évidence, que ces complexes pouvaient trouver des applications pour la thérapie photothermique, la libération contrôlée de médicament mais également pour le développement de nanomatériaux photosensibles à un stimulus externe. En effet, cet effet photothermique, sous irradiation laser NIR, permet de détruire des cellules cancéreuses, d'augmenter la perméabilité de nanoparticules polymériques ou de liposomes contenant des principes actifs et de désagréger des métallogels à base de complexes Ni-bis(dithiolène). Enfin, nous avons montré que les complexes [Ni(R2-timdt)2]0 ayant une haute efficacité photothermique sont de nouveaux candidats très prometteurs pour ce type d'applications.</dcterms:abstract>
     <dcterms:abstract xml:lang="en">The photothermal properties in the near Infrared (NIR) of neutral nickel-bis(dithiolene) complexes were used in materials science and for the first time in biotechnology. Hydrophilic and hydrophobic neutral Ni-bis(dithiolene) complexes were developped and for the first time, their photothermal effect under NIR laser irradiation was quantified. Thanks to this remarkable property and their high stability under irradiaton, it has been demonstrated that these complexes could find applications to photothermal therapy, controlled drug delivery but also in the developpement of stimuli responsive nanomaterials. Indeed, this photothermal effect, under NIR laser irradiation, allow to destroy malignant cells, increase the permeability of polymeric nanoparticles or liposomes containing active ingredients and disintegrate métallogels based on Ni-bis(dithiolene) cores. Finally, we showed that the [Ni(R2-timdt)2]0 complexes having higher phothothermal activity are very promising new candidates for these applications.</dcterms:abstract>
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