SURFACE-ACOUSTIC-WAVE CHEMICAL MICROSENSORS BASED ON COVALENTLY BOUND SELF-ASSEMBLED HOST MONOLAYERS

Communication: Novel asymmetric cyclodextrin derivatives have been synthesized. The materials form self-assembled host monolayer thin films under the action of silane coupling reagents. Ultrasensitive (low-ppm) sensors for volatile organic compounds have been developed based on these and related materials, and it is suggested that pattern recognition with an array of such sensors could be a feasible approach to the identification of a particular organic material.