APPLICATION OF CONDUCTING ORGANIC-SOLIDS FOR BIOLOGICAL SENSORS - SUCCESSES AND PROBLEMS

Studies on the basic properties and fabrication of biosensors based on conducting organic polymers have been reviewed. Several types of bios ensors and some classes of conducting polymers used in biosensors ale described. It is shown that their selective responses towards a dissol ved analyte have lead to their successful application in a new generat ion of ion, molecular and biosensors. Some important open problems in this fast growing field have also been indicated. They are related wit h the complex interactions of biomolecules and/or cells with the condu cting transducers. The present tendency to extreme miniaturization of biosensors related to the utilization of a few biomolecules and/or a s ingle cell as a heart of biosensing devices seems to be very close to molecular electronics.