Optimization of gold film thickness for SH-SAW biosensor on quartz

Author

Goto, Misako ; Yatsuda, Hiromi ; Kondoh, Jun

Author_Institution

S-PROJECT Lab., Japan Radio Co., Ltd., Fujimino, Japan

fYear

2013

fDate

21-25 July 2013

Firstpage

2151

Lastpage

2154

Abstract

This paper describes a numerical analysis for the shear horizontal surface acoustic wave (SH-SAW) immunoassay biosensor. The numerical calculation method proposed by Campbell and Jones has generally been used to calculate SAW propagation characteristics. In this paper, a numerical calculation method for SH-SAW propagation characteristics, which is a modified method of Campbell and Jones involving the effect of liquid viscosity is applied to quartz. The effect of the immunization reaction can be equivalent to viscosity changes of a liquid. Some experimental results using SH-SAW sensors on quartz with different gold film thickness are also shown for comparison with the numerical calculation results.

Keywords

acoustic wave propagation; bioacoustics; biosensors; gold; numerical analysis; quartz; surface acoustic wave sensors; viscosity; Au; SH-SAW biosensor; SH-SAW propagation characteristics; SiO₂; gold film thickness optimization; immunization reaction; liquid viscosity changes; liquid viscosity effect; numerical analysis; numerical calculation method; quartz; shear horizontal surface acoustic wave immunoassay biosensor; Biosensors; Equations; Gold; Immune system; Liquids; Mathematical model; Sensitivity; SH-SAW; numerical analysis; sensitivity; sensor; viscosity;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2013 IEEE International

Conference_Location

Prague

ISSN

1948-5719

Print_ISBN

978-1-4673-5684-8

Type

conf

DOI

10.1109/ULTSYM.2013.0550

Filename

6725029