Czugala, M;Gorkin, R;Phelan, T;Gaughran, J;Curto, VF;Ducree, J;Diamond, D;Benito-Lopez, F

2012

January

Lab on a Chip - Miniaturisation for Chemistry and Biology

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

Published

37 ()

IONIC LIQUIDS SENSOR PHOSPHATE PLATFORM SPECIATION ANALYZER ISSUES

12

5069

5078

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.

CAMBRIDGE

1473-0197

10.1039/c2lc40781g