Trending

Stories

Sensor for Rapidly Detecting Chemicals Used in High-Energy Explosives Developed

Tidio Live Chat Software - Add Tidio live chat software to your website in minutes. Contact visitors and turn them into happy customers. Enhance their experience and boost your sales. Get it for Free

WP Rocket - WordPress Caching Plugin

Must Read

Indian scientists, for the first time, have developed a thermally stable and cost-effective electronic polymer-based sensor for rapidly detecting nitro-aromatic chemicals used in high-energy explosives.

“The detection of explosives without destroying them is essential for protection, and criminal investigations, minefield remediation, military applications, ammunition remediation sites, security applications, and chemical sensors play a vital role in such cases,” a release from the Ministry of Science & Technology said.

Also Read

Though explosive poly-nitroaromatic compounds can be analyzed usually by sophisticated instrumental techniques, the requirements for quick decision-making in criminology laboratories or reclaimed 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. While earlier studies are based mostly on photo-luminescent property, detection of the basis of conducting property has not been explored so far. Detection on the basis of conducting property helps in making a handy detection device where results can be seen with the help of a LED, the release said.

Elegant Themes - The most popular WordPress theme in the world and the ultimate WordPress Page Builder. Get a 30-day money-back guarantee. Get it for Free

To overcome such disadvantages, a team of scientists led by Dr. Neelotpal Sen Sarma from the Institute of Advanced Study in Science and Technology, Guwahati, an autonomous institute of the Department of Science & Technology and the Government of India, has developed a layer by layer (LBL) polymer detector consisting of two organic polymers — poly-2-vinyl pyridine with acrylonitrile (P2VP-Co-AN) and polysulfone of cholesterol methacrylate with hexane (PCHMASH), which undergoes a drastic change in impedance (resistance in an ac circuit) in the presence of a very low concentration of NACs vapor within a few seconds.

Here, picric acid (PA) was chosen as the model NAC, and a simple and cost-effective electronic prototype was developed for the visual detection of PA. The release said the team has filed a patent for the novel technology.

“An electronic sensing device built around a polymer gas sensor can quickly detect the explosive on-site,” said Neelotpal Sen Sarma.

The sensor device comprises three layers — polymers polysulfone of cholesteryl methacrylate along with 1-hexene (PCHMASH), and a copolymer of poly-2-vinyl pyridine with acrylonitrile by sandwiching PCHMASH in between two P2VP-Co-AN outer layers by stainless steel (SS) mesh. The sensitivity of the system is determined by monitoring the change in the impedance response with time (sec) in the presence of the vapor of the analyte (picric acid).

The tri-layer polymer matrix was found to be a very efficient molecular sensor for nitroaromatic chemicals. The sensor device is quite simple and reversible in nature, and its response does not alter with varying operating temperatures in presence of other common chemicals and humidity.

The device can be operated at room temperature, has a low response time and negligible interference from other chemicals. The fabrication is very simple, is negligibly affected by humidity, and the cholesterol-based polymers used are biodegradable, the release added.

iThemes WordPress Hosting

Stay updated

Subscribe to our newsletter and never miss an update on the latest tech, gaming, startup, how to guide, deals and more.

Latest

Stories

- Advertisement -
- Advertisement -

Latest

Grow Your Business

Place your brand in front of tech-savvy audience. Partner with us to build brand awareness, increase website traffic, generate qualified leads, and grow your business.

- Advertisement -

Grow Your Business

Get these business solutions, tools and services to help your business grow.
Elementor

Elementor -Join 5,000,000+ Professionals Who Build Better Sites With Elementor. Build your website with 100% visual design that loads faster and speeds up the process of building them.

WP Rocket

WP Rocket - Speed up your website with the most powerful caching plugin in the world. The website speed increase means better SEO ranking, user experience, and conversation. It’s a fact that Google loves a fast site.

Kinsta

Kinsta - If you are looking for WordPress managed hosting, Kinsta is in the leading front. Kinsta provides WordPress hosting for a small or large business that helps take care of all your needs regarding your website with cutting-edge technology.

OptinMonster

OptinMonster - Instantly boost leads and grow revenue with the #1 most powerful conversion optimization toolkit in the world. 700,000+ websites are using OptinMonster to turn their traffic into leads, subscribers, and sales.

Related

- Advertisement -
- Advertisement -
OpenAI Releases Tool To Detect AI-generated Text Tesla Records Double Net Profit in 2022 India to Produce Upcoming iPhones: Trade Minister Japanese Professor Developed A Power Semiconductor made of Diamond Google Releases New Product for India’s Merchants Indian EV Startup Unveil Two AutoBalancing Electric Scooters OPPO Find X6 Pro Images Render via Weibo Sony Develops New Tech to Reduce Noise of Image Sensors Tesla’s S & Y Models Earn Best-in-Class Cars of 2022 India Approved $320m to Promote Homegrown Payments Network
Twitter Roll Out TikTok-like ‘For You’ Timeline on iOS Nothing Phone Enters US with Beta Membership Program Finally! Apple’s VR Headset Coming this Spring Harvard Scientists Develop New Cell Therapy to Kill, and Prevent Brain Cancer HTC Vive XR Elite VR/AR Headset Now Selling for $1099 Realme 10 Launched in India with Helio G99 Gaming Chipset Twitter Data Breach Revealing User’s Private Information Instagram New Feature to Create Albums With Friend