Solubility Interactions and the Design of Chemically Selective Sorbent Coatings for Chemical Sensors and Arrays
NAVAL RESEARCH LAB WASHINGTON DC
Pagination or Media Count:
In designing microsensors for vapor detection, interactive coating materials must be chosen which will collect and concentrate analyte molecules at the sensors surface. The sensitivity and selectivity of each individual sensor is controlled by tailoring the chemical and physical properties of the coating material to maximize particular solubility interactions. The selection of coatings for the complete sensor array is logically made through a systematic variation of the solubility properties of the coating materials, so that each sensor is selective for a different balance of solubility interactions. Parameters and methodologies for characterizing analyte solubility properties, sensor coating material solubility properties, and their interactions, are presented. Keywords Solubility, Chemical sensor, Sorption, Piezoelectric sorption detector, Surface acoustic wave, Pattern recognition, Array, Molecular recognition.
- Physical Chemistry