(Cell Press) Researchers in Korea have developed a wireless sensor and a smartphone app that can detect the presence of speed in a drop of human urine in seconds. The prototype device is also portable enough to be worn as a bracelet, has unprecedented sensitivity for amphetamines with low risk for false-positive results, and costs about $50 to produce. They present their proof-of-concept design Sept. 28 in the journal Chem.
from EurekAlert! - Social and Behavioral Science http://ift.tt/2wmWAwr
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