Bacteria-Powered Arsenic Sensor

Mar-27-19 A bacteria-powered arsenic sensor works with a smartphone to detect arsenic in water on site.

Created by researchers at the University of Edinburgh, the microfluidic device is embedded with more than 300 tiny wells, each filled with a gel containing a genetically engineered E.coli bacteria. A water sample placed in the device will flow through channels connecting the wells and make contact with the E.coli, which will fluoresce at in the presence of arsenic. The resulting pattern of glowing dots can be read by a smartphone app to determine the amount of arsenic in the water sample.

The teams states the sensor can be used with little training and is significantly sensitive than current options.

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