Portable Lab-on-a-Disc system integrating photo-switchable micro-valves for in-situ aquatic environmental monitoring
Czugala, Monika, Maher, Damien, Burger, Robert, Fraser, Kevin J.ORCID: 0000-0002-9718-5405, Ducrée, JensORCID: 0000-0002-0366-1897, Diamond, DermotORCID: 0000-0003-2944-4839 and Benito-Lopez, FernandoORCID: 0000-0003-0699-5507
(2012)
Portable Lab-on-a-Disc system integrating photo-switchable micro-valves for in-situ aquatic environmental monitoring.
In: 16th International Conference on Miniaturized Systems for Chemistry and Life Sciences, µTAS 2011 (MicroTAS) Conference, 28 Oct - 1 Nov 2012, Okinawa, Japan.
This work describes the first use of a portable centrifugal microfluidic analysis system (CMAS) for on-site lab-on-a-disc water quality monitoring. The centrifugal microfluidic platform designed for the detection of nitrite in multiple water samples incorporates photo-switchable microvalves, which are easily controlled using white light irradiation. Calibration of the CMAS system resulted in a linear response that obeys the Beer-Lambert Law. Excellent correlation of results between the CMAS device and a standard UV-Vis spectrophotometer were obtained.