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:10/10/2017)... firm Parks Associates announced today that Tom Kerber , ... Meeting , October 11 in Scottsdale, Arizona . Kerber ... smart safety and security products impact the competitive landscape. ... Parks Associates: Smart Home Devices: Main Purchase Driver ... "The residential security market has experienced continued growth, and the introduction ...
(Date:10/9/2017)... Oct. 9, 2017  BioTech Holdings announced today ... which its ProCell stem cell therapy prevents limb ... The Company, demonstrated that treatment with ProCell resulted ... saved as compared to standard bone marrow stem ... resulted in reduction of therapeutic effect.  ...
(Date:10/9/2017)... ... October 09, 2017 , ... ... 2017, in the medical journal, Epilepsia, Brain Sentinel’s SPEAC® System which uses ... EEG, in detecting generalized tonic-clonic seizures (GTCS) using surface electromyography (sEMG). The ...
(Date:10/6/2017)... ... October 06, 2017 , ... The HealthTech Venture Network (HTVN) ... their fourth annual Conference where founders, investors, innovative practitioners and collaborators are invited ... competition showcasing early stage digital health and med tech companies. , This day-long ...
Breaking Biology Technology:
(Date:4/19/2017)... New York , April 19, 2017 ... competitive, as its vendor landscape is marked by the ... the market is however held by five major players ... Safran. Together these companies accounted for nearly 61% of ... of the leading companies in the global military biometrics ...
(Date:4/11/2017)... , April 11, 2017 Crossmatch®, ... secure authentication solutions, today announced that it has ... Advanced Research Projects Activity (IARPA) to develop next-generation ... program. "Innovation has been a driving ... Thor program will allow us to innovate and ...
(Date:4/5/2017)... 2017  The Allen Institute for Cell Science today ... one-of-a-kind portal and dynamic digital window into the human ... first application of deep learning to create predictive models ... and a growing suite of powerful tools. The Allen ... future publicly available resources created and shared by the ...
Breaking Biology News(10 mins):