Design of a microfluidic sensor for high-sensitivity copper (II) sensing applications

Ceri Gibson; Patrick Byrne; David Gray; Brian D. MacCraith; Brett Paull; Eadaoin Tyrrell

doi:10.1117/12.464199

27 August 2003 Design of a microfluidic sensor for high-sensitivity Copper (II) sensing applications

Ceri Gibson, Patrick Byrne, David Gray, Brian D. MacCraith, Brett Paull, Eadaoin Tyrrell

Proceedings Volume 4876, Opto-Ireland 2002: Optics and Photonics Technologies and Applications; (2003) https://doi.org/10.1117/12.464199
Event: OPTO Ireland, 2002, Galway, Ireland

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.

Citation Download Citation

Ceri Gibson, Patrick Byrne, David Gray, Brian D. MacCraith, Brett Paull, and Eadaoin Tyrrell "Design of a microfluidic sensor for high-sensitivity Copper (II) sensing applications", Proc. SPIE 4876, Opto-Ireland 2002: Optics and Photonics Technologies and Applications, (27 August 2003); https://doi.org/10.1117/12.464199

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