초록 |
Various kinds of sensors based on conducting polymers have been explored for chemical and biological uses. The oxidation level of conducting polymers can be readily affected by their inherent reversible doping-dedoping mechanisms, causing the variations in conductivity, color, mass, volume, and so forth. Thus, conducting polymers are capable of exhibiting sensitive responses to specific chemical or biological species. Moreover, the sensitivity of conducting polymers can be tailored by attaching functional groups to the polymer chains or incorporating appropriate counterions during the polymerization. Recently, conducting polymer nanomaterials have been employed to detect a wide range of analytes. It is noteworthy that the nanostructures including nanorods, nanofibers, and nanotubes not only provide a high surface-to-volume ratio but also allow rapid diffusion of analytes into and out of the material. |