Unique sensor platforms for detecting traces of drugs and explosives by fingerprints have been developed at Lomonosov Moscow State University (MSU). This was reported by the university's press service.
The first development is a sensor based on a silicon substrate. For analysis, it is enough to apply the index finger to its surface for 1-2 seconds.
The sensor determines the presence of drugs by characteristic peaks in the spectrum obtained by the method of Raman scattering of light. The advantages of the device are its compactness and mobility: the weight of the sensor is half that of similar devices, and its size is at least 10-30 times smaller than the devices currently used at customs checkpoints.
The second development is a sensor platform for detecting explosive materials left on a person's fingers. The device can be used at airport checkpoints and other crowded places.
The sensor was able to detect traces of explosive substance down to the second to fourth fingerprint in a row, which confirms the high sensitivity of the developed sensor.
Earlier www1.ru reported that new sensors for detecting ammonia were created at the National Research University of Electronic Technology (MIET).
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