Enhanced surface acoustic wave biosensor performance via delay path modifications in mutually interacting multidirectional transducer configuration: A computational study

2009 ◽  
Vol 95 (3) ◽  
pp. 034101 ◽  
Author(s):  
Reetu Singh ◽  
Subramanian K. R. S. Sankaranarayanan ◽  
Venkat R. Bhethanabotla
2014 ◽  
Vol 302 ◽  
pp. 250-255 ◽  
Author(s):  
F. Di Pietrantonio ◽  
M. Benetti ◽  
V. Dinca ◽  
D. Cannatà ◽  
E. Verona ◽  
...  

2008 ◽  
Vol 23 (9) ◽  
pp. 1397-1403 ◽  
Author(s):  
M. Bisoffi ◽  
B. Hjelle ◽  
D.C. Brown ◽  
D.W. Branch ◽  
T.L. Edwards ◽  
...  

2013 ◽  
Vol 41 ◽  
pp. 328-334 ◽  
Author(s):  
F. Di Pietrantonio ◽  
D. Cannatà ◽  
M. Benetti ◽  
E. Verona ◽  
A. Varriale ◽  
...  

2018 ◽  
Vol 30 (6) ◽  
pp. 801-812 ◽  
Author(s):  
Claudio Maruccio ◽  
Marco Scigliuzzo ◽  
Silvia Rizzato ◽  
Pasquale Scarlino ◽  
Giuseppe Quaranta ◽  
...  

A computational study of the electromechanical response of micro-structure engineered two port surface acoustic wave delay lines on gallium arsenide is presented. The influence on the results of geometrical, material, and mesh parameters is also discussed. Furthermore, experimental results are provided to validate the numerical study. The device consists of two interdigital transducers composed of 40, 80, and 120 pairs of electrodes, respectively, with a pitch [Formula: see text] and distant [Formula: see text]. In particular, a microwave burst of surface acoustic waves propagating on gallium arsenide is fully characterized including multiple transit effects. These results are of major interest for understanding the dynamical behavior of complex systems such as surface acoustic wave–based sensors or energy harvesting devices at the nano and microscale.


Lab on a Chip ◽  
2016 ◽  
Vol 16 (1) ◽  
pp. 163-171 ◽  
Author(s):  
Sukru U. Senveli ◽  
Zheng Ao ◽  
Siddarth Rawal ◽  
Ram H. Datar ◽  
Richard J. Cote ◽  
...  

Tumour cells are acoustically interrogated using Rayleigh type SAW devices where an embedded microcavity facilitates direct interaction between the cells and the surface waves.


2019 ◽  
Vol 15 (9) ◽  
pp. 155014771987564
Author(s):  
Zhaoming Zhou ◽  
Jinsong Tan ◽  
Jia Zhang ◽  
Mian Qin

The biosensor based on surface acoustic wave is of great significance for the application of biological clinical detection, but the sensitivity and specificity of surface acoustic wave biosensor still need to be improved. In this article, the structure of surface acoustic wave biosensor and interdigital transducer is designed by studying the theoretical model of surface acoustic wave biosensor. Then the amplitude–frequency response of the device is studied. Later, the simulation model of surface acoustic wave biosensor structure is established, and the performance of surface acoustic wave device is numerically calculated. Meanwhile, the relationship between the applied excitation signal and the resonant frequency is considered, and the performance of the surface wave propagation and attenuation characteristics are analyzed. In addition, the influence of the material of the piezoelectric substrate and the structure of the interdigitated electrode on the surface acoustic wave propagation are studied. The response potential curve and the total displacement of the particle vibration are analyzed, and the structure of the surface acoustic wave device is optimized.


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