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Fabrication and Characterization of 3D Micro- and Nanoelectrodes for Neuron Recordings
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Sensors 2010, 10(12), 10986-11000; doi:10.3390/s101210986

Conducting Polymer 3D Microelectrodes

Department of Micro- and Nanotechnology, Technical University of Denmark, Ørsteds Plads 345ø, 2800 Kgs. Lyngby, Denmark
Both authors contributed equally to this article and therefore order of authorship is arbitrary.
Author to whom correspondence should be addressed.
Received: 20 October 2010 / Revised: 22 November 2010 / Accepted: 25 November 2010 / Published: 3 December 2010
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Denmark)
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Conducting polymer 3D microelectrodes have been fabricated for possible future neurological applications. A combination of micro-fabrication techniques and chemical polymerization methods has been used to create pillar electrodes in polyaniline and polypyrrole. The thin polymer films obtained showed uniformity and good adhesion to both horizontal and vertical surfaces. Electrodes in combination with metal/conducting polymer materials have been characterized by cyclic voltammetry and the presence of the conducting polymer film has shown to increase the electrochemical activity when compared with electrodes coated with only metal. An electrochemical characterization of gold/polypyrrole electrodes showed exceptional electrochemical behavior and activity. PC12 cells were finally cultured on the investigated materials as a preliminary biocompatibility assessment. These results show that the described electrodes are possibly suitable for future in-vitro neurological measurements.
Keywords: conducting polymers; micro-fabrication; micro-electrodes conducting polymers; micro-fabrication; micro-electrodes

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Sasso, L.; †, P.V.; Vedarethinam, I.; Castillo-León, J.; Emnéus, J.; Svendsen, W.E. Conducting Polymer 3D Microelectrodes. Sensors 2010, 10, 10986-11000.

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