Optical sensing system based on wireless paired emitter detector diode device and ionogels for lab-on-a-disc water quality analysis

This work describes the first use of a wireless paired emitter detector diode device (PEDD) as an optical sensor for water quality monitoring in a lab-on-a-disc device. The microfluidic platform, based on an ionogel sensing area combined with a low-cost optical sensor, is applied for quantitative pH...

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Bibliographic Details
Published in:Lab on a chip 2012-12, Vol.12 (23), p.5069-5078
Main Authors: Czugala, Monika, Gorkin, 3rd, Robert, Phelan, Thomas, Gaughran, Jennifer, Curto, Vincenzo Fabio, Ducrée, Jens, Diamond, Dermot, Benito-Lopez, Fernando
Format: Article
Language:English
Subjects:
Detection
Detectors
Devices
Diodes
Emittance
Monitoring
Optical sensors
Water quality
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Summary:This work describes the first use of a wireless paired emitter detector diode device (PEDD) as an optical sensor for water quality monitoring in a lab-on-a-disc device. The microfluidic platform, based on an ionogel sensing area combined with a low-cost optical sensor, is applied for quantitative pH and qualitative turbidity monitoring of water samples at point-of-need. The autonomous capabilities of the PEDD system, combined with the portability and wireless communication of the full device, provide the flexibility needed for on-site water testing. Water samples from local fresh and brackish sources were successfully analysed using the device, showing very good correlation with standard bench-top systems.
ISSN:1473-0197
1473-0189
DOI:10.1039/c2lc40781g