ABSTRACT
244The basic aspects of the electroactive polymers using in general as well as the polyaniline (PAn) as classical representative of these polymers in particular under design of chemo- and biosensors are considered in this overview. On example of typical experimental and industrial samples it was analyzed the architecture and performance properties of chemosensors by resistive, amperometric, potentiometric, voltammetric, optical and gravimetric types, their advantages and disadvantages at the analysis of various inorganic and organic substrates. It ihas shown the prospects of application of nanostructured PAn and composites on its basis with nano-dispersed metallic, oxide, and mineral fillers at the design of sensor devices. An application of PAn in biosensorics is considered in a separate way; in particular, the methods of biological components immobilization on the polymer-modified substrates have been analyzed.
