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

Authors:
Monika Czugala
Monika Czugala
Dublin City University
Ireland
Robert Gorkin
Robert Gorkin
Dublin City University
Ireland
Thomas Phelan
Thomas Phelan
United States Air Force Academy
U.S. Air Force Academy | United States
Dr. Jens Ducree, Dr. rer. nat. habil. Dipl. Phys.
Dr. Jens Ducree, Dr. rer. nat. habil. Dipl. Phys.
Fraunhofer Project Centre at Dublin City University
Professor (Full)
microfluidics, Lab-on-a-Chip, hydrodynanmics, business development, project management, organisational leadership
Glasnevin, Dublin 9 | Ireland
Dermot Diamond
Dermot Diamond
Dublin City University
Ireland
Fernando Benito-Lopez
Fernando Benito-Lopez
Dublin City University
Ireland

Lab Chip 2012 Dec;12(23):5069-78

CLARITY: Centre for Sensor Web Technology, National Centre for Sensor Research, Dublin City University, Dublin, Ireland.

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.

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December 2012
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