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Mesoporous Indium Tin Oxide as a Novel Platform for Bioelectronics
Citation key Frasca2010
Author Frasca, Stefano and von Graberg, Till and Feng, Jiu-Ju and Thomas, Arne and Smarsly, Bernd M. and Weidinger, Inez M. and Scheller, Frieder W. and Hildebrandt, Peter and Wollenberger, Ulla
Pages 839-845
Year 2010
ISSN 1867-3880
DOI 10.1002/cctc.201000047
Address PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
Journal CHEMCATCHEM
Volume 2
Number 7
Month JUL
Publisher WILEY-V C H VERLAG GMBH
Abstract Stable immobilization and reversible electrochemistry of cytochrome c in a tranparent indium tin oxide film with a well-defined mesoporosity (mpITO) is demonstrated. the transparency and good conductivity, in combination with the large surface area of mpITO, allow the incorporation of a high amount of elelctroactive biomolecules and their electrochemical and spectroscopic investigation. UV/Vis and resonance Raman spectroscopy, in combination with direct protein voltammetry are employed for the characterization of cytochrome c immobilized in the mpITO and reveal no perturbant of the structural of the integrity of the redox protein. The potential of this modified material as a biosensor detection of superoxide anions is also demonstrated.
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