Scientists develop portable sensors to trace explosives


Indian scientists have developed a cost-effective portable  sensor that can trace explosives and toxic metals such as  trinitrotoluene (TNT), trinitrophenol (TNP) and RDX  even if just a few molecules are present, on the scale of parts per million (ppm).  The senor, a solution, can be easily carried in public spaces like airports, railway and hotels or sensitive areas to counter terrorism.

Developed by Dr CV Yelamaggad, and his team from Bengaluru-based Centre for Nano and Soft Matter Sciences (CeNS), an autonomous institute under the Department of Science & Technology,  the solution works on the simple visual detection technique.

Talking about the concept, Dr Yelamaggad, who has been working on the technique for last 3 years, said, “It employs a fluorescent material known as coordination polymer, a hybrid system originating from the interaction between organic and inorganic moieties. This system being electron rich acts as an electron source.

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Source: The Pioneer