HOME >> BIOLOGY >> NEWS
UCSD chemists develop portable nerve gas sensor

Using a silicon chip and parts from an inexpensive CD player, chemists at the University of California, San Diego have developed a portable nerve-gas sensor capable of detecting "G-type" nerve agents, such as sarin, soman and GF.

The achievement should eventually permit the development of a large number of small and inexpensive sensors that could be deployed by soldiers across a battlefield or by police after a terrorist explosion to rapidly detect the presence of certain nerve agents and to track the movements of the deadly plumes.

"With multiple sensors that have a radio transmitter attached to them, you can tell how big the cloud is and where it is moving and relay that information to a base station," says Michael J. Sailor, a professor of chemistry and biochemistry at UCSD. He will provide details of his group's achievements today at the 220th national meeting of the American Chemical Society in Washington, DC.

The innovative silicon sensor was constructed by a team that included William C. Trogler, a professor of chemistry and biochemistry, and postdoctoral associates Sonia Letant and Honglae Sohn. It works by selectively detecting compounds with a phosphorus-fluorine chemical bond, such as sarin, at very low concentrations.

To accomplish this, the scientists used a catalyst that Trogler and his co-workers had developed for the Army to detoxify materials containing nerve agents and other deadly chemicals with phosphorus-fluorine bonds. This catalyst breaks the phosphorus-fluorine bond in "G"-type nerve agents, resulting in the production of hydrogen fluoride, which is used commercially to etch and frost glass.

The sensor detects the presence of hydrogen fluoride through a silicon interferometer-a stamp-sized silicon wafer, similar to a computer chip, with an optical coating containing the catalyst. The rainbow-colored optical coating, which is akin to the sheen left by a thin film of oil on water, changes color when mole
'"/>

Contact: Kim McDonald
kimmcdonald@ucsd.edu
858-534-7572
University of California - San Diego
20-Aug-2000


Page: 1 2 3

Related biology news :

1. NIH roadmap for biomedical research focus of chemists at American Chemical Society meeting
2. New multidisciplinary research tops chemists meeting Aug. 22-26
3. Wisconsin chemists find a new chink in TBs armor
4. UCLA chemists develop new coating for nanoscale probes
5. NJIT chemists pave way for cheap, usable field test for polluted, toxic, water, air, food
6. Frog skin and supercomputers lead Penn chemists to designing better bacteria killers
7. Purdue chemists put the twist on protein building block
8. New pollutant cleanup technique puzzles, pleases chemists
9. Homeland security symposium covers what chemists can do to help protect the nation
10. Michigan, Connecticut and Illinois chemists receive award for drug to combat antibiotic resistance
11. Carnegie Mellon University chemists create versatile polymer brushes

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/2/2016)... , June 2, 2016 Perimeter ... Platforms, Unmanned Systems, Physical Infrastructure, Support & Other Service  ... visiongain offers comprehensive analysis of the global ... market will generate revenues of $17.98 billion in 2016. ... DVTEL Inc, a leader in software and hardware technologies ...
(Date:5/16/2016)... --  EyeLock LLC , a market leader of iris-based ... IoT Center of Excellence in Austin, Texas ... embedded iris biometric applications. EyeLock,s iris authentication ... with unmatched biometric accuracy, making it the most proven ... platform uses video technology to deliver a fast and ...
(Date:4/28/2016)... BANGALORE, India , April 28, 2016 ... of Infosys (NYSE: INFY ), and Samsung SDS, ... partnership that will provide end customers with a more ... payment services.      (Logo: http://photos.prnewswire.com/prnh/20130122/589162 ) ... financial services, but it also plays a fundamental part in ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... 27, 2016  Global demand for enzymes is ... 2020 to $7.2 billion.  This market includes enzymes ... products, biofuel production, animal feed, and other markets) ... biocatalysts). Food and beverages will remain the largest ... consumption of products containing enzymes in developing regions.  ...
(Date:6/27/2016)... ... June 27, 2016 , ... Parallel 6 , the ... today the Clinical Reach Virtual Patient Encounter CONSULT module which enables both ... physician and clinical trial team. , Using the CONSULT module, patients and physicians can ...
(Date:6/27/2016)... 27, 2016   Ginkgo Bioworks , a leading ... was today awarded as one of the World ... world,s most innovative companies. Ginkgo Bioworks is engineering ... real world in the nutrition, health and consumer ... with customers including Fortune 500 companies to design ...
(Date:6/24/2016)... ... , ... Researchers at the Universita Politecnica delle Marche in Ancona combed medical ... mesothelioma. Their findings are the subject of a new article on the Surviving Mesothelioma ... in the blood, lung fluid or tissue of mesothelioma patients that can help point ...
Breaking Biology Technology:
Cached News: