Research News: An understanding of analyte-coating interactions is nee
ded in order to be able to predict the sensitivity and selectivity of
coating materials considered for use in mass-sensitive devices such as
the quartz microbalance. Models are reviewed for the sensor response
based on solubility parameters and calculated energies for functionali
zed coatings and supramolecular cavities (e.g., the substituted tetraa
zaparacyclophane shown in the Figure).