SUPRAMOLECULAR RECEPTORS FOR SAW AND QMB DEVICES - SOLVENT RECOGNITION EVALUATED BY FT-IR SPECTROSCOPY AND BET ADSORPTION ANALYSIS

Sensor effects can be predicted by force field calculations if the for mation of host-guest complexes determines the sensor signal. Strong su pport for this supramolecular recognition is available by BET analysis . This method allows the determination of the number of strong complex ing sites in the layer and the corresponding heats of adsorption that are in good agreement with calculated data. Additionally, the host-gue st interaction can be pursued by FT-IR spectroscopy using CDCl3 as sen sitive probe. These ideas can be used to design rugged functionalized polymeric sensor materials that fulfill the requirements of practical sensoric operation.