Immunological biosensors based on integrated optical sensors for environmental applications

In the last yeas. a great interest has focused on the development of select ive and sensitive sensors for the control, of pollutant processes. The aim of this work is to develop evanescent wave transducers with enhanced specif icity and selectivity to be used as immunosensors of organic contaminants. The sensors are based on "ARROW" (Anti Resonant Reflecting Optical Waveguid es) structures as optimized transducers with a Mach-Zehnder interferometric configuration and are fabricated with standard Silicon microelectronics te chnology. The design, fabrication and preliminary results of the transducer s will be shown.