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.
| Original language | English |
|---|---|
| Pages (from-to) | 5069-5078 |
| Number of pages | 10 |
| Journal | Lab on a Chip |
| Volume | 12 |
| Issue number | 23 |
| DOIs | |
| Publication status | Published - 2012 |