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Disposable Electrospun Electrodes Based on Conducting Nanofibers
Authors:Flavio Granato  Matteo Scampicchio  Andrea Bianco  Saverio Mannino  Chiara Bertarelli  Giuseppe Zerbi
Institution:1. Politecnico di Milano, Dept. of Chemistry, Materials and Chemical Engineering, Piazza L. da Vinci 32, 20133?Milan, Italy;2. University of Milan, Center for Food Nanobiotechnologies, Via Celoria, 2, 20133 Milan, Italy;3. INSTM – Italian Interuniversity Consortium on Materials Science and Technology, via G. Giusti 9, 50121?Firenze, Italy
Abstract:A new approach for the fabrication of disposable electrochemical surfaces is presented. Conducting fibers have been produced by a two‐step process. Firstly, a fine web mat composed of nylon‐6 and ferric chloride fibers (with diameters of about 200 nm) were electrospun on a flat collector. Afterwards, the electrospun mat was exposed to pyrrole vapor under controlled dry atmosphere until each nylon thread was fully coated with a conducting polypyrrole layer. The conducting fiber mat was finally integrated within an electrochemical cell and used as a disposable sensor device. The suitability of the sensor was tested using phosphate and carbonate organic anions. The large scale fabrication of conducting tissue, in the form of a fine web of spun nanofibers, is relatively fast and inexpensive, and it paves the way to the build up of new disposable electrodes.
Keywords:Conducting nanofibers  Electrospun electrodes  Nylon‐6  Ferric chloride fibers
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