Title :
A Lateral Field Excited Acoustic Wave Sensor
Author :
French, Lester A., Jr. ; McCann, Donald F. ; Wark, Mitchell ; Winters, Shane ; Vetelino, John F.
Author_Institution :
LLC, Orono
Abstract :
A lateral field excited (LFE) acoustic wave sensor with a bare sensing surface was developed. In addition to sensing mechanical and electrical changes in liquids, film-coated LFE devices were used to sense mechanical and electrical film property changes caused by chemical and biological analytes in solution. The sensor was tested as a chemical and biological sensor, detecting phosmet and Escherichia coli, respectively. A method to acoustically isolate multiple LFE sensors on a single substrate is also described. The results show that the LFE sensor can be used to sense analytes critical to homeland security, the military, agriculture, and health.
Keywords :
biosensors; chemical sensors; surface acoustic wave sensors; Escherichia coli; biological sensor; chemical sensor; lateral field excited acoustic wave sensor; phosmet; Acoustic sensors; Acoustic waves; Biochemical analysis; Biosensors; Chemical analysis; Chemical and biological sensors; Liquids; Mechanical factors; Mechanical sensors; Surface acoustic wave devices; Lateral field excitation; biological sensors; bulk acoustic wave sensors; chemical sensors;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems Conference, 2007. TRANSDUCERS 2007. International
Conference_Location :
Lyon
Print_ISBN :
1-4244-0842-3
Electronic_ISBN :
1-4244-0842-3
DOI :
10.1109/SENSOR.2007.4300373
