Chemical sensing conducting polymer

Torsi, L., M.C. Tanese, N. Cioffi, M.C. Gallazzi, L. Sabbatini, P.G. Zambonin, G. Raos, S.V. Meille, and M.M. Giangregorio. 2003. Side-chain in chemically sensing conducting polymer field-effect... 

Chemical and Biochemical Sensors. The sensitivity of the electrical properties of conductive polymers to chemical stimuli suggests they may prove useful in a number of sensing applications. 

Collins, G.E. and Buckley, L.J. Conductive polymer-coated fabrics for chemical sensing, Synth. Met., 78, 93 (1996). 

Chemical sensors for gas molecules may, in principle, monitor physisorp-tion, chemisorption, surface defects, grain boundaries or bulk defect reactions [40]. Several chemical sensors are available mass-sensitive sensors, conducting polymers and semiconductors. Mass-sensitive sensors include quartz resonators, piezoelectric sensors or surface acoustic wave sensors [41-43]. The basis is a quartz resonator coated with a sensing membrane which works as a chemical sensor. 

These conducting polymers are easy to prepare and show excellent ambient stability and very rapid and reversible absorption kinetics. They have, therefore, attracted much attention in the area of chemical and bio sensing. Extensive research... 

Recent work has investigated conductive polymers [69,70], sol-gels [71], and chemoresponsive dyes [72] for use as the gas-sensitive transduction medium in fiber optic sensors. In general, fiber optic sensors can be divided into two different sensing architectures extrinsic and intrinsic. If the transduction of the chemical signal into an optical signal occurs within the fiber... 

---