Navigation Links
Safer, easier system for remote explosive detection

ANN ARBOR, Mich.---Detecting roadside bombs may become easier, thanks to chemical sensors being developed at the University of Michigan.

A team led by chemistry professor Theodore Goodson III has created materials that sniff out TNT and give off signals that can be detected remotely---from a moving Humvee, for example. Their work was recently described in the journal Nanotechnology and also is the subject of a presentation at the 235th national meeting of the American Chemical Society in New Orleans, April 9, 2008

The materials under study are large macromolecules made up of smaller active parts (chromophores), put together in a branching pattern. When TNT vapor contacts the material, "the TNT gets caught in the branches, as if in a sieve," said Goodson, who has a joint appointment in the Department of Macromolecular Science and Engineering. Normally, these materials emit light (fluoresce) when their molecules are excited with pulses of infrared light. But even the slightest trace of TNT quenches that fluorescence.

Goodson envisions a system in which sensors---which can be made for about $10 each---are positioned along the roadside and in other important locations. Passing military vehicles would be equipped with lasers to shoot infrared light at the sensors to excite the fluorescence and a specially-designed light-collection system to detect the sensors' response. Any sensors that don't fluoresce would be tip-offs to possible locations of roadside bombs.

Goodson's remote detection scheme relies on highly sensitive, low-cost, battery-free, thin film sensors which require no electronic equipment or excitation source at the sites where they are installed. In contrast, conventional chemical TNT sensors for explosive detection have no remote capability and must be used in close proximity to the suspicious site, increasing the danger for military personnel. Using infrared light to excite the remote sensors minimizes light-scattering, allows for greater penetration through the atmosphere, and is safe to soldiers' eyes.

Goodson's research team also is working on laser-based methods for directly detecting TNT, with no sensors on site.


Contact: Nancy Ross-Flanigan
University of Michigan

Related biology technology :

1. Decision Biomarkers Launches System for Faster, Easier Quantification of Protein Biomarkers
2. Ciphergen Biosystems Receives Noncompliance Letter From The Nasdaq Stock Market
3. Cepheid Enters Into Five-Year Agreement With Northrop Grumman for the Purchase of Anthrax Test Cartridges for Use in United States Postal Service Biohazard Detection Systems
4. BioMaxx Systems Inc. Signs Engagement Letter With Alcofuel Technologies for Provision of an Ethanol Micro-Refinery
5. Systems Medicine (SM), a Subsidiary of Cell Therapeutics, Inc. (CTI), Announces Execution of CRADA with NCI/NIH to Develop Potential Cancer Treatments Targeting the Insulin Growth Factor (IGF) Pathway
6. Actavis Receives Approval of Fentanyl Transdermal System in the U.S.
7. Amnis Announces the Release of Multiple Upgrades to the ImageStream(R) System
8. NxStage Medical Provides Update on Medisystems Acquisition
9. ICx Awarded $1.5 M Contract by Department of Homeland Security for Development of Next Generation Bio Aerosol Systems
10. Safety Profile of TAXUS(R) Liberte(TM) Stent System Highlighted in Worlds Largest Stent Registry
11. Imaging Diagnostic Systems New Laser Breast Imaging Scanner Introduced in Malaysia
Post Your Comments:
(Date:6/27/2016)... Raleigh, NC (PRWEB) , ... June 27, 2016 ... ... a mission to bring innovative medical technologies, services and solutions to the healthcare ... development and implementation of various distribution, manufacturing, sales and marketing strategies that are ...
(Date:6/27/2016)... --  Ginkgo Bioworks , a leading organism design ... awarded as one of the World Economic Forum,s ... innovative companies. Ginkgo Bioworks is engineering biology to ... in the nutrition, health and consumer goods sectors. ... including Fortune 500 companies to design microbes for ...
(Date:6/24/2016)... ... , ... While the majority of commercial spectrophotometers and fluorometers use the z-dimension ... are higher end machines that use the more unconventional z-dimension of 20mm. Z-dimension ... bottom of the cuvette holder. , FireflySci has developed several Agilent flow cell ...
(Date:6/23/2016)... ... June 23, 2016 , ... UAS LifeSciences, one of ... their brand, UP4™ Probiotics, into Target stores nationwide. The company, which has been ... Target to its list of well-respected retailers. This list includes such fine stores ...
Breaking Biology Technology:
(Date:6/22/2016)... Md. , June 22, 2016  The American College ... Trade Show Executive Magazine as one of the ... on May 25-27 at the Bellagio in Las ... on the highest percentage of growth in each of the ... of exhibiting companies and number of attendees. The 2015 ACMG ...
(Date:6/21/2016)... June 21, 2016 NuData Security announced today ... role of principal product architect and that ... of customer development. Both will report directly to ... The moves reflect NuData,s strategic growth in its ... high customer demand and customer focus values. ...
(Date:6/15/2016)... New York , June 15, 2016 /PRNewswire/ ... a new market report titled "Gesture Recognition Market by ... and Forecast, 2016 - 2024". According to the report, ... USD 11.60 billion in 2015 and is estimated ... reach USD 48.56 billion by 2024.  ...
Breaking Biology News(10 mins):