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Title: Towards nanostructured ITO-based electrochemical sensors: Fabrication, characterization and functionalization
Author: Pruna Morales, Raquel
Palacio Bonet, Francisco
López de Miguel, Manuel
Keywords: Detectors químics
Espectroscòpia d'infraroigs per transformada de Fourier
Chemical detectors
Fourier transform infrared spectroscopy
Issue Date: 16-Aug-2017
Publisher: MDPI
Abstract: The need for miniaturized, low-cost and ultrasensitive electrochemical sensors has motivated the search and study of new nanostructured materials. We propose nanostructured indium tin oxide (ITO) electrodes as a promising platform due to their good electrical conductivity, transparency to visible wavelengths and high surface-to-volume ratio. The nanostructured electrodes were fabricated by electron beam evaporation, and electrochemical techniques were used to quantify more than a 40% increase in electrochemical surface area compared to thin ITO films. The electrodes were derivatized with organosilanes and coated with a molecule providing redox activity. Indeed, an increase in detectability of more than 400% was observed with respect to thin films, indicating the potential viability of nanostructured ITO-based electrochemical biosensors.
Note: Reproducció del document publicat a:
It is part of: MDPI Proceedings, 2017, vol. 1, num. 4, p. 288
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ISSN: 2504-3900
Appears in Collections:Articles publicats en revistes (Enginyeria Electrònica i Biomèdica)

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