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
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.