Indian Scientists Develop LBL Polymer Detector to Detect Explosives Without Destroying In a significant breakthrough that will enable detection of explosives without destroying them, Indian scientists have develop a layer by layer (LBL) polymer detector for the purpose.
The LBL has been the idea of a team of scientists led by Dr Neelotpal Sen Sarma from the Institute of Advanced Study in Science and Technology, Guwahati, Department of Science & Technology under the Central government.
The thermally stable and cost-effective electronic polymer-base sensor will help in the rapid detection of nitro-aromatic chemicals use in high-energy explosives.
This discovery assumes significance as detection of explosives without destroying them is essential for protection, and criminal investigations, minefield remediation, military applications, ammunition remediation sites and security applications.
Chemical sensors play a vital role in such cases according to a ministry of science and technology note here.
With the development of such an explosive detection system the detection on the basis of conducting property will help in making a handy detection device where results can be seen with the help of a LED.
Explosive poly-nitroaromatic compounds can be analyze usually by sophisticated instrumental techniques, the requirements for quick decision making in criminology laboratories or reclaim military sites or to detect explosives in possession of extremists often require simple, cheap, and selective field techniques which will be non-destructive in nature.
Non-destructive sensing of nitroaromatic chemicals (NACs) is difficult.
Dr Neelotpal Sen Sarma speaking about his discovery Said :
“An electronic sensing device built around a polymer gas sensor can quickly detect the explosive on-site.”
The device can be operate at room temperature.
It has a low response time and negligible interference from other chemicals. The fabrication is very simple.
The effect of humidity on the device is negligible. Besides the cholesterol-based polymers used in the device are also biodegradable.
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