Nanofiber-based chemical sensor

TABLE 8.2 Examples of nanofiber-based chemical sensor materials recently reported in the literature... 

Snow AW, Barger WR (1989) Phthalocyanine films in chemical sensors. In Kadish KM, Smith KM, Guilard R (eds) Phthalocyanines - properties and applications. VCH, New York, pp 343-392 Songa X, Qi Q, Zhang T, Wang C (2009) A humidity sensor based on KQ-doped SnO nanofibers. Sens Actuators B... 

Finally, another class of sensing devices relies on the electronic properties of polymer nanofibers (Chapter 6). Chemical sensors based on PAN nanofibers made by interfacial polymerization have been tested with 100 ppm of HCl and NH3 vapors, causing respectively an increase and a decrease of many orders of magnitude in the conductivity (Figure 4.16). " Similar devices have been realized by PPy nanowires fabricated by EBL on resists and subsequent lift-off, and used to detect 240 ppm Other sensors can be realized by field-... 

Polyaniline nanofibers are synthesized through a simple, non-templated method, based on a modification of the classic chemical oxidative polymerization of aniline that makes nanofibers of uniform diameters. These materials respond significantly better than conventional films. To make the polyaniline even better for sensor materials, the nanofibers are dispensed into water and are combined with metals salts into a composite material. These... 

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