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Bio-inspired self-construction and self-assembly of organic films triggered by electrochemistry

Abstract : Molecular architectures that spontaneously grow exclusively near a surface are rare. Electrodeposition is a process in which imposed electrical « signals » are employed to direct the assembly of thin films. Recently, a new method based on the one-pot self-construction of films by means of a morphogen (a catalyst gradient generated from a surface) has attracted attention since it allows the quick self-assembly of robust films. Nevertheless, this technique was quite limited to systems based on click chemistry.The purpose of this work was to extend this strategy to other systems using a bio-inspired approach. The one-pot morphogen concept was applied to design two new electro-triggered self-construction concepts. The first one is based on the self-construction of covalent polymer films triggered by mussel-inspired molecule oxidation. The second one is based on the electro-self-assembly of polyphenols films based on ionic bonds coordination. Finally, we tried to apply these concepts in order to electrochemically immobilize an enzyme on an electrode to create a biosensor.
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Clément Maerten. Bio-inspired self-construction and self-assembly of organic films triggered by electrochemistry. Theoretical and/or physical chemistry. Université de Strasbourg, 2016. English. ⟨NNT : 2016STRAE045⟩. ⟨tel-02488929⟩

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