Electrosynthetically patterned conducting polymer films for investigation of neural signaling
2006 (English)In: Journal of Chemical Physics, ISSN 0021-9606, E-ISSN 1089-7690, Vol. 124, 204709- p.Article in journal (Refereed) Published
The ion-mediated conduction and versatility of device fabrication of conducting polymers provide a route to the study of neural signaling. Patterned junctions of conducting polypyrrole have been electropolymerized on commercially available microelectrode arrays, with typical dimensions 200 µm between electrodes, each electrode being 30 µm in diameter. Tetrabutylammonium perchlorate or sodium p-toluenesulfonate were used as electrolyte/counterion in the organic solvent. Individual polypyrrole junctions, when synthesized and connected in a three-electrode configuration, exhibit current-switching behavior analogous to neural weighting. Junctions copolymerized with thiophene exhibit current rectification and the nonlinear current-voltage behavior requisite for complex neural systems (i.e., the activation function).
Place, publisher, year, edition, pages
2006. Vol. 124, 204709- p.
Natural Sciences Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-77349DOI: 10.1063/1.2200348OAI: oai:DiVA.org:liu-77349DiVA: diva2:526375