Optical sensing system based on wireless paired emitter detector diode device and ionogels for lab-on-a-disc water quality analysis
Czugala, Monika, Gorkin, Robert, Phelan, Thomas, Gaughran, Jennifer, Curto, Vincenzo F., Ducrée, JensORCID: 0000-0002-0366-1897, Diamond, DermotORCID: 0000-0003-2944-4839 and Benito-Lopez, FernandoORCID: 0000-0003-0699-5507
(2012)
Optical sensing system based on wireless paired emitter detector diode device and ionogels for lab-on-a-disc water quality analysis.
Lab on a Chip, 2012
(12).
pp. 5069-5078.
ISSN 1473-0189
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 pH (quantitative) and qualitative turbidity monitoring of water samples at the 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.