Registration of heavy metal ions and pesticides with ATR planar waveguide enzyme sensors

NABOK, A. V., HARON, S. and RAY, A. K. (2004). Registration of heavy metal ions and pesticides with ATR planar waveguide enzyme sensors. Applied Surface Science, 238 (1-4), 423-428.

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Link to published version:: 10.1016/j.apsusc.2004.05.165

Abstract

The proposed novel type of enzyme optical sensors is based on a combination of SiO2/Si3N4/SiO2 planar waveguide ATR (attenuated total reflection) transducer, fabricated by standard silicon planar technology, with the composite polyelectrolyte self-assembled coating containing both organic chromophores and enzyme molecules. Such devices were deployed to monitor typical industrial and agricultural water pollutants, such as heavy metal ions and pesticides, acting as inhibitors of enzyme reactions. The sensitivity of registration of these pollutants in the range of 1 ppb was achieved. The use of different enzymes in the sensitive membrane provides a background for pattern recognition of the above pollutants. (C) 2004 Elsevier B.V. All rights reserved.

Item Type: Article
Additional Information: 1st International Meeting on Applied Physics (APHYS-2003) OCT 15-18, 2003, Badajoz, SPAIN
Research Institute, Centre or Group: Materials and Engineering Research Institute > Thin Films Research Centre > Electronic Materials and Sensors Research Group
Identification Number: 10.1016/j.apsusc.2004.05.165
Depositing User: Ann Betterton
Date Deposited: 31 Mar 2010 17:28
Last Modified: 31 Mar 2010 17:28
URI: http://shura.shu.ac.uk/id/eprint/1434

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