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: Assemblages Hybrides à base de Nanotubes de Carbone : Application à la Catalyse, l'Optique et la Biologie

Abstract : During this thesis work, we have explored various properties of carbon nanotubes via their assembly with molecules of interest and we used them in a wide variety of applications.
At first we used nanotubes as a support for the development of electrodes in fuel cells and more particularly for the oxidation of ethanol. We have developed a new and effective method for depositing homogeneous metal nanoparticles on the surface of nanotubes and outstanding performance were obtained.
We also functionalized nanotubes in order to build a biosensor capable of detecting biological molecules. To reach this goal we have adopted a strategy aiming at grafting on nanotubes molecules bearing nickel chelating agent allowing a specific hanging of recombinant protein labelled with a histidine tag.
The nanotubes have electronic properties that we exploited to build a donnor-acceptor hybrid with a DNA intercalant. In this study we have implemented various strategies to cleave DNA and to highlight a photoinduced electronic transfer between the two entities. Also, we functionalised nanotubes in order to improve their performance and to develop new systems for effective protection of the vision against laser beam. One of the approaches used is based on the functionalization of nanotubes with fullerenes. Finally, we associate nanotubes with oligonucleotide sequences capable of targeting the surface of cancer cell.
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Submitted on : Wednesday, February 25, 2009 - 3:40:12 PM
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  • HAL Id : tel-00364276, version 1



Nicolas Mackiewicz. : Assemblages Hybrides à base de Nanotubes de Carbone : Application à la Catalyse, l'Optique et la Biologie. Chimie. Université Paris Sud - Paris XI, 2007. Français. ⟨tel-00364276⟩



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