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The aim of the present study is to combine a bio-inspired nanofibrous artificial epithelium to the electronic nose (e-nose) principles. The sensing device set up was an electronic nose consisting of an array of 9 micro-chemoresistors (Cr–Au, 3 × 3) coated with electrospun nanofibrous structures. These were comprised of doped polyemeraldine base blended with 3 different polymers: polyethylene oxide, polyvinilpyrrolidone and polystyrene, which acted as carriers for the conducting polymer and were the major responsible of the features of each fibrous overlay (electrical parameters, selectivity and sensitivity ranges). The two sensing strategies here adopted and compared consisted in the use of 2 different textural coatings: a single- and a double-overlay, where the double-overlay resulting from overdeposition of 2 different polymer blends. Such e-nose included a plurality of nanofibres whose electrical parameters …
Publication date: 
15 Jan 2011

Emiliano Zampetti, Simone Pantalei, Silvia Scalese, Andrea Bearzotti, Fabrizio De Cesare, Corrado Spinella, Antonella Macagnano

Biblio References: 
Volume: 26 Issue: 5 Pages: 2460-2465
Biosensors and Bioelectronics