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Authors: Peter H. Dykstra 1 ; Stephan T. Koev 1 ; Reza Ghodssi 1 ; Gregory F. Payne 2 and Liangli Yu 3

Affiliations: 1 MEMS Sensors and Actuators Lab, Department of Electrical and Computer Engineering, Institute for Systems Research (ISR), University of Maryland, United States ; 2 University of Maryland Biotechnology Institute (UMBI), United States ; 3 Department of Nutrition and Food Science, University of Maryland, United States

Keyword(s): Catechol, Chitosan, Waveguides, Absorbance.

Related Ontology Subjects/Areas/Topics: Biomaterials ; Biomedical Engineering ; Biomedical Instruments and Devices ; Hardware ; MEMS ; Sensor Networks

Abstract: We report the successful fabrication and testing of an optical MEMS sensor for the detection of the toxic phenol, catechol. Catechol’s presence in food and drinking water posses a health concern due to its harmful effects on cell respiration. By-products of catechol oxidation have demonstrated increased absorbance changes in a chitosan film in the UV and near UV range. Our reported sensor takes advantage of this unique absorbance property to detect catechol by measuring the change in light intensity at 472 nm, thus eliminating non-specific responses that occur from other oxidized chemicals which do not cause the absorbance change. Concentrations as low as 1 mM catechol are detected while control experiments including ascorbic acid display no measurable response.

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Paper citation in several formats:
Dykstra, P.; Koev, S.; Ghodssi, R.; Payne, G. and Yu, L. (2009). CATECHOL DETETION USING AN OPTICAL MEMS SENSOR. In Proceedings of the International Conference on Biomedical Electronics and Devices (BIOSTEC 2009) - BIODEVICES; ISBN 978-989-8111- 64-7; ISSN 2184-4305, SciTePress, pages 104-108. DOI: 10.5220/0001552001040108

@conference{biodevices09,
author={Peter H. Dykstra. and Stephan T. Koev. and Reza Ghodssi. and Gregory F. Payne. and Liangli Yu.},
title={CATECHOL DETETION USING AN OPTICAL MEMS SENSOR},
booktitle={Proceedings of the International Conference on Biomedical Electronics and Devices (BIOSTEC 2009) - BIODEVICES},
year={2009},
pages={104-108},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001552001040108},
isbn={978-989-8111- 64-7},
issn={2184-4305},
}

TY - CONF

JO - Proceedings of the International Conference on Biomedical Electronics and Devices (BIOSTEC 2009) - BIODEVICES
TI - CATECHOL DETETION USING AN OPTICAL MEMS SENSOR
SN - 978-989-8111- 64-7
IS - 2184-4305
AU - Dykstra, P.
AU - Koev, S.
AU - Ghodssi, R.
AU - Payne, G.
AU - Yu, L.
PY - 2009
SP - 104
EP - 108
DO - 10.5220/0001552001040108
PB - SciTePress

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