Abstract
New recent developments in engineering have improved transducer piezoelectric technology and have led to a new generation of sensor devices, the piezoelectric microbalances, based on planar microfabrication technique. These devices show a very high sensitivity (up to femtomole) for detecting molecules that are linked to the surface of the device and change its resonant frequency. A sensor surface can be coated selectively for interaction with a specific chemical or class of chemical or a biomolecule to be detected. Applications in medicine, environmental monitoring, food analysis, and process control are possible. Most of the applications employ bulk acoustic waves (BAW) devices, using a selective coating for the analyte of interest.
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Mascini, M., Minunni, M., Guilbault, G.G., Carter, R. (1998). Immunosensors Based on Piezoelectric Crystal Device. In: Rogers, K.R., Mulchandani, A. (eds) Affinity Biosensors. Methods in Biotechnology, vol 7. Humana Press. https://doi.org/10.1385/0-89603-539-5:55
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DOI: https://doi.org/10.1385/0-89603-539-5:55
Publisher Name: Humana Press
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