Liquid sensing system based on two port SH-SAW resonator

Nomura, T.; Saitoh, A.; Horikoshi, Yuta; Furukawa, Shoji

doi:10.1109/ultsym.1999.849443

Cited by 9 publications

(6 citation statements)

References 1 publication

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“…SGAW resonators are well established as one pole and narrow-band filters in a wide frequency range. Resonators offer the advantages of relatively high Q value, a low insertion loss, linear phase response and a higher frequency stability for a given device size, due to the multiple reflections which increase the group delay [ 36 , 37 ]. Moreover, SGAW resonators feature much lower insertion losses and are more suited for the detection of resonance frequency shifts via an oscillator circuit.…”

Section: Sgaw Basic Operationmentioning

confidence: 99%

“…Moreover, SGAW resonators feature much lower insertion losses and are more suited for the detection of resonance frequency shifts via an oscillator circuit. Furthermore, these devices are compact and rugged and can significantly contribute to the reduction in the complexity of the system [ 37 ]. However, SGAW resonators suffer for considerable attenuation due to viscosity [ 38 ] and are very sensible to manufacture processes [ 9 ].…”

Section: Sgaw Basic Operationmentioning

confidence: 99%

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Surface Generated Acoustic Wave Biosensors for the Detection of Pathogens: A Review

Rocha-Gaso

March-Iborra

Montoya-Baides

et al. 2009

Sensors

207

113

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This review presents a deep insight into the Surface Generated Acoustic Wave (SGAW) technology for biosensing applications, based on more than 40 years of technological and scientific developments. In the last 20 years, SGAWs have been attracting the attention of the biochemical scientific community, due to the fact that some of these devices - Shear Horizontal Surface Acoustic Wave (SH-SAW), Surface Transverse Wave (STW), Love Wave (LW), Flexural Plate Wave (FPW), Shear Horizontal Acoustic Plate Mode (SH-APM) and Layered Guided Acoustic Plate Mode (LG-APM) - have demonstrated a high sensitivity in the detection of biorelevant molecules in liquid media. In addition, complementary efforts to improve the sensing films have been done during these years. All these developments have been made with the aim of achieving, in a future, a highly sensitive, low cost, small size, multi-channel, portable, reliable and commercially established SGAW biosensor. A setup with these features could significantly contribute to future developments in the health, food and environmental industries. The second purpose of this work is to describe the state-of-the-art of SGAW biosensors for the detection of pathogens, being this topic an issue of extremely importance for the human health. Finally, the review discuses the commercial availability, trends and future challenges of the SGAW biosensors for such applications.

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Section: Sgaw Basic Operationmentioning

confidence: 99%

Section: Sgaw Basic Operationmentioning

confidence: 99%

Surface Generated Acoustic Wave Biosensors for the Detection of Pathogens: A Review

Rocha-Gaso

March-Iborra

Montoya-Baides

et al. 2009

Sensors

207

113

View full text Add to dashboard Cite

show abstract

“…Resonators offer the advantages of relatively high Q value, a low insertion loss, linear phase response and a higher frequency stability for a given device size, due to the multiple reflections which increase the group delay [36,37]. Moreover, SGAW resonators feature much lower insertion losses and are more suited for the detection of resonance frequency shifts via an oscillator circuit.…”

Section: Sgaw Basic Operationmentioning

confidence: 99%

“…Moreover, SGAW resonators feature much lower insertion losses and are more suited for the detection of resonance frequency shifts via an oscillator circuit. Furthermore, these devices are compact and rugged and can significantly contribute to the reduction in the complexity of the system [37]. However, SGAW resonators suffer for considerable attenuation due to viscosity [38] and are very sensible to manufacture processes [9].…”

Section: Sgaw Basic Operationmentioning

confidence: 99%

Surface Generated Acoustic Wave Biosensors for the Detection of Pathogens: A Review

Rocha-Gaso

March-Iborra

Montoya-Baides

et al. 2009

Sensors

View full text Add to dashboard Cite

This review presents a deep insight into the Surface Generated Acoustic Wave (SGAW) technology for biosensing applications, based on more than 40 years of technological and scientific developments. In the last 20 years, SGAWs have been attracting the attention of the biochemical scientific community, due to the fact that some of these devices -Shear Horizontal Surface Acoustic Wave (SH-SAW), Surface Transverse Wave (STW), Love Wave (LW), Flexural Plate Wave (FPW), Shear Horizontal Acoustic Plate Mode (SH-APM) and Layered Guided Acoustic Plate Mode (LG-APM) -have demonstrated a high sensitivity in the detection of biorelevant molecules in liquid media. In addition, complementary efforts to improve the sensing films have been done during these years. All these developments have been made with the aim of achieving, in a future, a highly sensitive, low cost, small size, multi-channel, portable, reliable and commercially established SGAW biosensor. A setup with these features could significantly contribute to future developments in the health, food and environmental industries. The second purpose of this work is to describe the state-of-the-art of SGAW biosensors for the detection of pathogens, being this topic an issue of extremely importance for the human health. Finally, the review discuses the commercial availability, trends and future challenges of the SGAW biosensors for such applications.

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“…SH-SAW devices have been widely used for chemical and biosensing applications and have been reported extensively in literature 1,2,3,4 . The basic structure of a twoport SH-SAW device is shown in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

3D Modeling and Simulation of SH-SAW Devices Using the Finite Element Method

2007

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Shear Horizontal Surface Acoustic Wave (SH-SAW) devices have been extensively used in chemical and biosensing applications mainly because these waves are not attenuated in liquid media like Rayleigh waves. It is extremely important to model and simulate the device prior to its actual fabrication in order to gain a better understanding of the device performance and optimizing its design parameters. This paper presents the 3-dimensional Finite Element (FE) modeling and simulation results for a SH-SAW device using CoventorWare TM (CW). The substrate used is 64˚ rotated Y-cut LiNbO 3 with Au/CrInterdigital Transducers (IDT) having a periodicity of 40 µm. 3D transient analysis was performed on the devices to study the acoustic wave propagation and characterize the device in timeand frequency domain. The normalized displacements at the output node are presented together with a 3D view of the SH-SAW wave propagation on the substrate. Also, a comparison is provided between the measured and simulated frequency response.

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Liquid sensing system based on two port SH-SAW resonator

Cited by 9 publications

References 1 publication

Surface Generated Acoustic Wave Biosensors for the Detection of Pathogens: A Review

Surface Generated Acoustic Wave Biosensors for the Detection of Pathogens: A Review

Surface Generated Acoustic Wave Biosensors for the Detection of Pathogens: A Review

3D Modeling and Simulation of SH-SAW Devices Using the Finite Element Method

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