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Arsenic (As) is a contaminant found in ecosystems and drinking water throughout the world; it is a potent human carcinogen. Arsenic levels and speciation are controlled by a series of abiotic and microbial processes. Arsenic toxicity depends on its speciation and proper risk management is linked to predicting As speciation in various environmental matrices. Laboratory speciation of arsenic is expensive and requires tedious collection methods to preserve in-situ conditions. Marine ecosystems are affected by As contamination but few tools are adapted to its detection. Our goal is to develop a novel arsenic biosensor capable of determining the speciation of inorganic arsenic in seawater while rapidly estimating the quantity of bioavailable arsenic at concentrations regulated by the World Health Organization.
Alexandre Poulain
Martin Pothier
Biology
University of Ottawa
Globalink Research Award
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