Prompted by Young’s research, Lucks and his lab began to investigate naturally occurring biosensors — molecules used by microbes to sense for the presence of contaminants.
Results were excellent, showing that the point-of-use had an 84% chance of correctly predicting fluoride levels above the World Health Organization limit of more than 1.5 parts per million. “This is a whole new way to measure water quality,” Young said. “The study shows that we can get a test into people’s hands that is based on some very complex biology but works very simply.”
Potential next steps for the point-of-use fluoride test could include mapping where geogenic fluoride is located globally.
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