Biosensors change the way water contamination is detected

The study was co-led by Northwestern anthropologist Sera Young and synthetic biologist Julius Lucks. Young is an associate professor of anthropology and global health studies at Weinberg College of Arts and Sciences and a faculty fellow at the Institute for Policy Research . Lucks is professor and associate chair of chemical and biological engineering at McCormick School of Engineering.

The research team collected 57 water samples from 36 households in rural Kenya to evaluate the accuracy of the fluoride concentration measurement when compared with the gold-standard method of fluoride photometer. They also designed their studies to examine whetherresults would be easily interpreted by non-expert users, a key indicator that the technology can have meaningful impact in addressing the global water crisis.

"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."

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