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urn:hdl:2445/152741 Towards nanostructured ITO-based electrochemical sensors: Fabrication, characterization and functionalization Pruna Morales, Raquel Palacio Bonet, Francisco López de Miguel, Manuel Detectors químics Òxids Silicones Espectroscòpia d'infraroigs per transformada de Fourier Chemical detectors Oxides Silicones Fourier transform infrared spectroscopy 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. 2020-03-13T12:16:14Z 2020-03-13T12:16:14Z 2017-08-16 2020-03-13T12:16:14Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Reproducció del document publicat a: https://doi.org/10.3390/proceedings1040288 MDPI Proceedings, 2017, vol. 1, num. 4, p. 288 https://doi.org/10.3390/proceedings1040288 cc-by (c) Pruna Morales, Raquel et al., 2017 http://creativecommons.org/licenses/by/3.0/es info:eu-repo/semantics/openAccess MDPI Articles publicats en revistes (Enginyeria Electrònica i Biomèdica)