Amperometric biosensors based on electrosynthesised polymeric films

The most significant goals achieved in the course of the last decade in the design of amperometric biosensors based on redox enzymes entrapped in elec trosynthesised polymeric films are reviewed. Particular emphasis is devoted to non-conducting polymers with built-in permselectivity that revealed ver y promising materials for designing fast-response and interference-free, H2 O2 detecting, amperometric biosensors. The role of surface analytical techn iques to provide structural information allowing a better understanding of polymers properties and their relationship with the ultimate performance of the final device is also outlined. The most relevant applications of amper ometric biosensors based on electropolymerised films to real samples analys is are also reviewed and some possible future trends highlighted.