A surface-acoustic-wave-based cantilever bio-sensor.


A scalable surface-acoustic-wave- (SAW-) based cantilevered device for portable bio-chemical sensing applications is presented. Even in the current, proof-of-principle implementation this architecture is shown to outperform commercial quartz-crystal microbalances in terms of sensitivity. Adhesion of analytes on a functionalized surface of the cantilever shifts the resonant frequency of a SAW-generating transducer due to the stress-induced variation of the speed of surface acoustic modes. We discuss the relevance of this approach for diagnostics applications based on miniaturized devices.

DOI: 10.1016/j.bios.2014.12.058

Cite this paper

@article{Simoni2015ASC, title={A surface-acoustic-wave-based cantilever bio-sensor.}, author={Giorgio De Simoni and Giovanni Signore and Matteo Agostini and Fabio Beltram and V. Piazza}, journal={Biosensors & bioelectronics}, year={2015}, volume={68}, pages={570-6} }