Title :
Shear-horizontal surface acoustic wave biosensors for POCT
Author :
Yatsuda, Hiromi ; Kogai, Takashi ; Goto, Misako ; Yoshimura, Naoko
Author_Institution :
Japan Radio Co. Ltd., Fujimino, Japan
Abstract :
An immunoassay-based biosensor using shear horizontal surface acoustic wave (SH-SAW) devices for point-of-care-testing (POCT) applications is described. The SH-SAW biosensor is composed of a disposable SH-SAW biosensor chip and an electrical reader connected to the biosensor chip. The biosensor chip is a quartz-based 250 MHz SH-SAW delay-line which has a gold surface covered with antibodies. A palm-sized electric reader connected to a smart-phone for detecting antigen-antibody reactions has been demonstrated. In this paper, a unique air-cavity structure and a reflection type delay-line design for the SH-SAW biosensor chip are described. The SH-SAW biosensor must be a strong candidate for future home healthcare applications.
Keywords :
biosensors; gold; health care; patient diagnosis; quartz; smart phones; surface acoustic wave sensors; Au; POCT; air-cavity structure; antigen-antibody reaction detection; disposable SH-SAW biosensor chip; electrical reader; frequency 250 MHz; gold surface; home healthcare applications; immunoassay-based biosensor; palm-sized electric reader; point-of-care-testing applications; quartz-based SH-SAW delay-line; reflection type delay-line design; shear-horizontal surface acoustic wave biosensors; smart-phone; Biosensors; Gold; Liquids; Reflection; Semiconductor device measurement; Temperature measurement; Transducers;
Conference_Titel :
Frequency Control Symposium (FCS), 2014 IEEE International
Conference_Location :
Taipei
DOI :
10.1109/FCS.2014.6859843
