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Proceedings Paper

Design of a microfluidic sensor for high-sensitivity copper (II) sensing applications
Author(s): Ceri Gibson; Patrick Byrne; David Gray; Brian D. MacCraith; Brett Paull; Eadaoin Tyrrell
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Paper Abstract

An all-plastic micro-sensor system for remote measurement of copper (II) ions in the aqueous environment has been developed. The sensing structure was designed for ease of milling and fabricated in poly (methyl methacrylate) (PMMA) using a hot-embossing technique. Issues of sealing the structure were studied extensively and an efficient protocol has been established. The detection system comprises a compact photo-multiplier tube and integrated photon counting system. This method has advantages of low sample volume, (creating a minimal volume of waste), low exposure to contaminants due to the closed system, no moving parts and employs a robust polymer material which is resistant to the environment of intended use. The sensor operates on the principle of flow injection analysis and has been tested using a chemiluminescence (FIA-CL) reaction arising from the complexation of copper with 1,10-phenanthroline and subsequent oxidation by hydrogen peroxide.

Paper Details

Date Published: 27 August 2003
PDF: 8 pages
Proc. SPIE 4876, Opto-Ireland 2002: Optics and Photonics Technologies and Applications, (27 August 2003); doi: 10.1117/12.464199
Show Author Affiliations
Ceri Gibson, National Ctr. for Sensor Research (Ireland)
Patrick Byrne, National Ctr. for Sensor Research (Ireland)
David Gray, National Ctr. for Sensor Research (Ireland)
Brian D. MacCraith, National Ctr. for Sensor Research (Ireland)
Brett Paull, National Ctr. for Sensor Research (Ireland)
Eadaoin Tyrrell, National Ctr. for Sensor Research (Ireland)

Published in SPIE Proceedings Vol. 4876:
Opto-Ireland 2002: Optics and Photonics Technologies and Applications
Vincent Toal; Norman Douglas McMillan; Gerard M. O'Connor; Eon O'Mongain; Austin F. Duke; John F. Donegan; James A. McLaughlin; Brian D. MacCraith; Werner J. Blau, Editor(s)

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