Chronoprint Method Detects Counterfeit Drugs Based on Time

Mar-22-19 An innovative chronoprint method offers an inexpensive way to detect counterfeit medicine.

Developed by a team from the University of California, Riverside, the simple and affordable chronoprint testing method was created with an eye toward developing countries.

The test relies on measuring how chemicals react to temperature changes, and comparing that change to a library of known examples. To test the medications, a liquid sample is placed on a microfluidic device and allowed to travel the channels, and then suddenly cooled in liquid nitrogen. The action of the cooling sample is recorded by a video camera, with that footage used to create bitmap stills called chronoprints that can be compared to a known sample of genuine medication.

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