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

fYear

2014

fDate

19-22 May 2014

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control Symposium (FCS), 2014 IEEE International

Conference_Location

Taipei

Type

conf

DOI

10.1109/FCS.2014.6859843

Filename

6859843