Author(s): Corban Kerr, Kason Stinson
Mentor(s): Chris Monson
Institution SUU
Dissolved oxygen concentration in aqueous environments is relevant to biological and chemical processes. Variations in oxygen levels may critically change metabolic and other chemical pathways. We developed a microfluidic device inspired by the STOx electrode to measure dissolved oxygen. The STOx electrode is the most sensitive electrochemical device currently available for the quantitation of dissolved oxygen. However, it is fragile and expensive, whereas our device is constructed from a resin. Our device employs microfluidics and requires fewer electrodes, resulting in a more efficient, durable, and cost-effective alternative. We tested its performance in synthetic anoxic water, yielding results in at least 15 minutes.