Title

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

RIS ID

78585

Publication Details

Czugala, M., Gorkin III, R., Phelan, T., Gaughran, J., Curto, V. Fabio., Ducree, J., Diamond, D. & Benito-Lopez, F. (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: microfluidic and nanotechnologies for chemistry, biology, and bioengineering, 12 (23), 5069-5078.

Abstract

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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Link to publisher version (DOI)

http://dx.doi.org/10.1039/C2LC40781G