Integrated Love Wave Device Dedicated to Biomolecular Interactions Measurements in Aqueous Media

Mass-sensitive electro-acoustic devices such as surface acoustic wave (SAW)micro-balances, capable to operate with aqueous media are particularly favorable for thedevelopment of biosensors. Their dimensions and physical properties offer a large potentialin biological fluid investigations, especially...

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Main Authors: Sylvain Ballandras, Gilles Martin, William Daniau, Gwladys Lengaigne, Bruno Cavallier, Wilfrid Boireau, Virginie Blondeau-Patissier
Format: Article
Language:English
Published: MDPI AG 2007-09-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/7/9/1992/
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author Sylvain Ballandras
Gilles Martin
William Daniau
Gwladys Lengaigne
Bruno Cavallier
Wilfrid Boireau
Virginie Blondeau-Patissier
author_facet Sylvain Ballandras
Gilles Martin
William Daniau
Gwladys Lengaigne
Bruno Cavallier
Wilfrid Boireau
Virginie Blondeau-Patissier
author_sort Sylvain Ballandras
collection DOAJ
description Mass-sensitive electro-acoustic devices such as surface acoustic wave (SAW)micro-balances, capable to operate with aqueous media are particularly favorable for thedevelopment of biosensors. Their dimensions and physical properties offer a large potentialin biological fluid investigations, especially for measuring physical phenomenon (massdeposition, adsorption, pressure...). In this work, we propose a specific gratingconfiguration to lower the influence of viscosity of fluids which reduces the signal dynamicsof the surface wave transducers. A dedicated liquid cell also has been developed to isolatethe electro-active part of the device. The fabrication of the cell is achieved using theSU-8TMphoto-resist, allowing for manufacturing thick structures preventing any contact between thetested liquids and the transducers. Furthermore, the sensing area has been optimized tooptimize the sensor gravimetric sensitivity. The operation of the sensor is illustrated bydetecting bovine serum albumin (BSA) adsorption in the sensing area.
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spelling doaj.art-ad5e204bc1db47f98eeffe1a45753a032022-12-22T02:12:15ZengMDPI AGSensors1424-82202007-09-01791992200310.3390/s7091992Integrated Love Wave Device Dedicated to Biomolecular Interactions Measurements in Aqueous MediaSylvain BallandrasGilles MartinWilliam DaniauGwladys LengaigneBruno CavallierWilfrid BoireauVirginie Blondeau-PatissierMass-sensitive electro-acoustic devices such as surface acoustic wave (SAW)micro-balances, capable to operate with aqueous media are particularly favorable for thedevelopment of biosensors. Their dimensions and physical properties offer a large potentialin biological fluid investigations, especially for measuring physical phenomenon (massdeposition, adsorption, pressure...). In this work, we propose a specific gratingconfiguration to lower the influence of viscosity of fluids which reduces the signal dynamicsof the surface wave transducers. A dedicated liquid cell also has been developed to isolatethe electro-active part of the device. The fabrication of the cell is achieved using theSU-8TMphoto-resist, allowing for manufacturing thick structures preventing any contact between thetested liquids and the transducers. Furthermore, the sensing area has been optimized tooptimize the sensor gravimetric sensitivity. The operation of the sensor is illustrated bydetecting bovine serum albumin (BSA) adsorption in the sensing area.http://www.mdpi.com/1424-8220/7/9/1992/Love wavesSAW resonatorsBiosensorBSA adsorption detection
spellingShingle Sylvain Ballandras
Gilles Martin
William Daniau
Gwladys Lengaigne
Bruno Cavallier
Wilfrid Boireau
Virginie Blondeau-Patissier
Integrated Love Wave Device Dedicated to Biomolecular Interactions Measurements in Aqueous Media
Sensors
Love waves
SAW resonators
Biosensor
BSA adsorption detection
title Integrated Love Wave Device Dedicated to Biomolecular Interactions Measurements in Aqueous Media
title_full Integrated Love Wave Device Dedicated to Biomolecular Interactions Measurements in Aqueous Media
title_fullStr Integrated Love Wave Device Dedicated to Biomolecular Interactions Measurements in Aqueous Media
title_full_unstemmed Integrated Love Wave Device Dedicated to Biomolecular Interactions Measurements in Aqueous Media
title_short Integrated Love Wave Device Dedicated to Biomolecular Interactions Measurements in Aqueous Media
title_sort integrated love wave device dedicated to biomolecular interactions measurements in aqueous media
topic Love waves
SAW resonators
Biosensor
BSA adsorption detection
url http://www.mdpi.com/1424-8220/7/9/1992/
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AT gwladyslengaigne integratedlovewavedevicededicatedtobiomolecularinteractionsmeasurementsinaqueousmedia
AT brunocavallier integratedlovewavedevicededicatedtobiomolecularinteractionsmeasurementsinaqueousmedia
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