P0-9 A Lateral Field Excited Acoustic Wave Sensor for the Detection of Saxitoxin in Water

Wark, M.; Kalanyan, B.; Ellis, Lucas D.; Fick, J.; Connell, Laurie B.; Neivandt, David J.; Vetelino, J.F.

doi:10.1109/ultsym.2007.306

Cited by 18 publications

(10 citation statements)

References 7 publications

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“…A sensing film based on an 18-crown-6 ether (CE) molecule, which sensitively sorbs STX, was developed [69].…”

Section: Saxitoxin Selective Filmmentioning

confidence: 99%

“…In addition to a CE film-coated LFE sensor, a complete differential LFE STX sensing element was developed that had an amine-derivatized neutral sensor which resists STX binding providing a negative control. Amine derivatization was accomplished with a standard liquid silanization procedure using the (3-aminopropyl)triethoxysilane agent [69].…”

Section: Lfe Saxitoxin Sensormentioning

confidence: 99%

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Recent advances in lateral field excited and monolithic spiral coil acoustic transduction bulk acoustic wave sensor platforms

McCann¹,

French²,

Wark³

et al. 2009

Meas. Sci. Technol.

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The quartz crystal microbalance (QCM) has been used extensively as a bulk acoustic wave (BAW) platform for applications such as chemical and biological sensors and rate monitors in thin film deposition systems. Although the QCM is capable of measuring mechanical property changes critical in many thin film deposition systems, it cannot measure electrical property changes that can occur in many sensor applications. In this paper we review the recent developments of two novel transducer configurations for BAW sensors. In the first sensor, called the lateral field excited (LFE) sensor, the transverse shear mode (TSM) in AT-cut quartz is excited by two electrodes on the reference surface, resulting in a bare sensing surface which allows both electrical and mechanical properties of target analytes to be measured. In the second sensor, called the monolithic spiral coil acoustic transduction (MSCAT) sensor, the TSM is excited by a photolithographically deposited spiral antenna on the reference surface which can excite high-order harmonics in the substrate, and potentially lead to increased sensitivity. The responses of both the LFE and MSCAT sensors to electrical and mechanical property changes of liquids have been examined and compared to the response of the standard QCM. In addition, results relating to the detection of chemical and biological target analytes using the LFE and MSCAT sensor platforms are presented.

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“…A sensing film based on an 18-crown-6 ether (CE) molecule, which sensitively sorbs STX, was developed [69].…”

Section: Saxitoxin Selective Filmmentioning

confidence: 99%

Section: Lfe Saxitoxin Sensormentioning

confidence: 99%

Recent advances in lateral field excited and monolithic spiral coil acoustic transduction bulk acoustic wave sensor platforms

McCann¹,

French²,

Wark³

et al. 2009

Meas. Sci. Technol.

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“…In this regard, the electro-acoustic analysis methods are promising [7][8][9]. For the detection and identification of microbial cells, biosensors based on a resonator with a lateral electric field are widely used [10][11][12][13][14][15][16][17][18]. Nevertheless, the problem of increasing the sensitivity of such sensors remains relevant.…”

Section: Introductionmentioning

confidence: 99%

Sensor Based on PZT Ceramic Resonator with Lateral Electric Field for Immunodetectionof Bacteria in the Conducting Aquatic Environment †

Бородина

Зайцев

Teplykh

et al. 2020

Sensors

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A biological sensor for detection and identification of bacterial cells, including a resonator with a lateral electric field based on PZT ceramics was experimentally investigated. For bacterial immunodetection the frequency dependencies of the electric impedance of the sensor with a suspension of microbial cells were measured before and after adding the specific antibodies. It was found that the addition of specific antibodies to a suspension of microbial cells led to a significant change in these frequency dependencies due to the increase in the conductivity of suspension. The analysis of microbial cells was carried out in aqueous solutions with a conductivity of 4.5–1000 μS/cm, as well as in the tap and drinking water. The detection limit of microbial cells was found to be 103 cells/mL and the analysis time did not exceed 4 min. Experiments with non-specific antibodies were also carried out and it was shown that their addition to the cell suspension did not lead to a change in the analytical signal of the sensor. This confirms the ability to not only detect, but also identify bacterial cells in suspensions.

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“…The potentials of the resonators as liquid sensors have been demonstrated in Refs. [6,8,9,[12][13][14][15] although they require more in-depth theoretical study. The effect of viscous, dielectric, and conducting liquids on the characteristics of the resonators has been examined.…”

Section: Introductionmentioning

confidence: 99%

Liquid sensor based on a piezoelectric lateral electric field-excited resonator

et al. 2015

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P0-9 A Lateral Field Excited Acoustic Wave Sensor for the Detection of Saxitoxin in Water

Cited by 18 publications

References 7 publications

Recent advances in lateral field excited and monolithic spiral coil acoustic transduction bulk acoustic wave sensor platforms

Recent advances in lateral field excited and monolithic spiral coil acoustic transduction bulk acoustic wave sensor platforms

Sensor Based on PZT Ceramic Resonator with Lateral Electric Field for Immunodetectionof Bacteria in the Conducting Aquatic Environment †

Liquid sensor based on a piezoelectric lateral electric field-excited resonator

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