The techniques used to detect, measure and monitor chemicals in liquids, gases and solids are being developed in response to the demand for greater sensitivity and specificity needed to detect trace chemicals. Biosensors and immunoassays, due to their inherent sensitivity and specificity are excellent candidates for inclusion in inspection systems. This discussion will review the fundamentals of biosensors and immunoassays, their advantages and disadvantages, the current state-of-the-art as indicated by published research and how and where they can be included in cargo inspection technologies.
Elaine M. Bower,
"Biosensors: their role in detection systems for cargo inspection", Proc. SPIE 2276, Cargo Inspection Technologies, (6 October 1994); doi: 10.1117/12.189161; https://doi.org/10.1117/12.189161