Gel sensors to detect bomb chemicals and illegal drugs in seconds

Sensors that quickly detect chemicals used to make bombs are being developed by scientists at Queen’s University, Belfast. The devices will use special gel pads to "swipe" a person or crime scene to gather a sample which is then analyzed by a scanning instrument that can detect the presence of chemicals within seconds, much quicker than current analysis methods. This will allow better, faster decisions to be made in response to terrorist threats. The team is also working on devices that detect illegal drugs and will hopefully be deployed by police as roadside drug "breathalyzers".

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