Highly ordered transparent mesoporous TiO2 thin films: an attractive matrix for efficient immobilization and spectroelectrochemical characterization of cytochrome c

Christophe Renault; Véronique Balland; Eugenia Martinez-Ferrero; Lionel Nicole; Clément Sanchez; Benoît Limoges

doi:10.1039/B919976D

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Chemical Communications

Issue 48, 2009

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Highly ordered transparent mesoporous TiO₂ thin films: an attractive matrix for efficient immobilization and spectroelectrochemical characterization of cytochrome c

Christophe Renault , Véronique Balland , Eugenia Martinez-Ferrero , Lionel Nicole , Clément Sanchez and Benoît Limoges

Chem. Commun., 2009, 7494-7496

DOI: 10.1039/B919976D
Received 25 Sep 2009, Accepted 30 Oct 2009
First published on the web 12 Nov 2009

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Abstract
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We demonstrate remarkably fast incorporation and high loading of cytochrome c within thin films of periodically ordered nanocrystalline TiO₂ deposited on transparent electrodes. The immobilized cytochrome c is not denaturated and it can be reversibly reduced without mediator over the time scale of a few seconds as evidenced by spectroelectrochemistry.

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Experimental and instrumental details. Spectra of Fe^II-cyt c in mesoporous film and solution
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Christophe Renault
Véronique Balland
Eugenia Martinez-Ferrero
Lionel Nicole
Clément Sanchez
Benoît Limoges

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Chemical Communications

Highly ordered transparent mesoporous TiO₂ thin films: an attractive matrix for efficient immobilization and spectroelectrochemical characterization of cytochrome c

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