Scientists at Queen's university at Belfast, Northern Ireland, have developed a kind of sensor that can easliy detect chemicals used for manufacturing bombs. A special gel pad is used to 'swipe' the suspected person or a crime location to collect a sample. The sample is then analyzed with a scanning instrument for chemical presence detection. This scanning instrument can detect the chemical presence quicker than the present analysis technologies. That means it can take faster and better decisions within seconds.
The suspected sample is analysed by Raman spectroscopy in which a laser beam is shining on a suspected sample and measure the energy, to detect the chemical compound, scattered from it. The scanning equipment is so advanced that it can even measure the minute particles thus making the detection more accurate.
The team has not finished the project and still working on it. They are also working in a project that can detect illegal drugs. They hope to capitalise on this research and expand the range of chemicals and drugs which these sensors can detect."
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