Title :
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
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;
Conference_Titel :
Ultrasonics Symposium (IUS), 2013 IEEE International
Conference_Location :
Prague
Print_ISBN :
978-1-4673-5684-8
DOI :
10.1109/ULTSYM.2013.0550
