Navigation Links
'Scrubbing' chemical-contaminated buildings clean with lasers
Date:5/20/2010

ctive contamination after a dirty bomb. Under the new S&T program, the team has been extending its work to chemical-weapon decontamination. While no terrorist has managed to deploy a dirty bomb, the same cannot be said of chemical agents.

In a series of tests still underway at the Army's Aberdeen Proving Ground, INL researchers have been using ultraviolet-wavelength lasers to scrub surfaces clean of sulfur mustard gas and VX, a nerve agent. The tests have proved successful so far, even on complex, porous surfaces like concrete.

Lasers can degrade weapons like VX in two ways: photochemically or photothermally. In photochemical decomposition, high-energy laser photons blast apart chemical bonds, slicing the agent into pieces. In photothermal decomposition, photons heat up the target surface enough to speed along natural degradation reactions. In some cases, the intense heat by itself can cause contaminant molecules to fall apart.

Knowing how chemical contaminants fall apart is key, because some of the elements resulting from their degradation products can themselves be hazardous. But according to Fox, the tests look good in this regard, too. "The lasers are showing neutralization of the agent without generation of dangerous byproducts," he says.

And even if they're not used to degrade VX or other agents, lasers could still be helpful in cleanup scenarios. Laser light could blast nasty chemicals off a wall, for example, and an integrated vacuum system could suck them up.

Fox and his team are adapting an established technology. Lasers have been used in cleanup capacities for more than a decade. Dentists employ them to kill periodontal bacteria and quash mouth infections. Doctors use them to remove tattoos. And lasers have recently become a common tool to restore precious artwork.

Laser technology has other commercial applications. Some cleanup and restoration firms are already using lasers to scrub soot off buildin
'/>"/>

Contact: John Verrico
john.verrico@dhs.gov
202-254-2385
US Department of Homeland Security - Science and Technology
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Scrubbing sulfur
2. UNH researchers test sediment-scrubbing technology in NH river
3. Clean-up tools may help protect wetlands from Gulf of Mexico oil spill
4. Roots meshed in waste materials could clean dirty water
5. Caution required for Gulf oil spill clean-up
6. Inventor honored for tech improving access to clean water, healthcare, and business development in India
7. World-first study for cleaner aviation fuel
8. Faulty clean-up process may be key event in Huntingtons disease
9. UNCs Dr. Sean McLean receives Robert Wood Johnson Foundation award
10. Clean sampling from bioreactors
11. Genetically engineered tobacco plant cleans up environmental toxin
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
'Scrubbing' chemical-contaminated buildings clean with lasers
(Date:4/27/2015)... , Apr. 27, 2015 NXT-ID, Inc. (NASDAQ: ... authentication company focused on the growing mobile commerce market, ... to pre-order customers the first week of May, 2015 ... month of May. Gino Pereira ... milestone for the company as Wocket® enters the consumer ...
(Date:4/17/2015)... , April 17, 2015 ... concerns, and technological advancement to drive biometric systems ... until 2020   According to a ... Biometric Systems Market Forecast &  Opportunities, 2020 ", biometric systems market in ... to register growth at CAGR of over 22% ...
(Date:4/10/2015)... DUBLIN , April 10, 2015 ... the addition of the "Security Competitive Profiles - ... (Logo: http://photos.prnewswire.com/prnh/20130307/600769) , NEC will continue to ... solutions to the market, with a company focus on ... solution anticipated. Winning opportunities in the ...
Breaking Biology News(10 mins):Wocket, the Smartest Wallet You Will Ever Own, Announces Shipment to Pre-order Customers 2Wocket, the Smartest Wallet You Will Ever Own, Announces Shipment to Pre-order Customers 3Saudi Arabia Biometric Systems Market to Grow at 22% Through 2020, Says TechSci Research 2Saudi Arabia Biometric Systems Market to Grow at 22% Through 2020, Says TechSci Research 3NEC Security Competitive Profile 2015 2
... A team led by Johns Hopkins scientists has,found ... the human immune,system's remarkable ability to recognize and ... from a family of genes whose,only apparent function ... genes" ,essentially cut themselves out of the genetic ...
... As public health officials in China brace for a potential ... Chinese New Year on February 9, researchers at Washington University ... that could be an important contributor to the SARS virus' ... virus first jumped from its still unknown animal reservoir to ...
... system (CNS), where it influences neurotransmission to produce intoxication. ... function gene by gene. Symposium proceedings published in the ... the effects of alcohol on what is called "gene ... "All of our cells have exactly the same deoxyribonucleic ...
Cached Biology News:UCSD Discovery Shows How Embryonic Stem Cells Perform 'Quality Control' Inspections 2UCSD Discovery Shows How Embryonic Stem Cells Perform 'Quality Control' Inspections 3New SARS Protein Linked To Important Cell Doorway 2New SARS Protein Linked To Important Cell Doorway 3Alcohol's effects on gene expression in the central nervous system 2Alcohol's effects on gene expression in the central nervous system 3Alcohol's effects on gene expression in the central nervous system 4
(Date:5/4/2015)... Achieved primarily through a proprietary paraffin and stain additive, ... better detail than the industry standard. But because ... methods, it needed another medium to measure its detail. ... reference because it represents the highest standard of detail ... discovery days of Ultralight Histology was to reverse engineer ...
(Date:5/4/2015)... --  Intrexon Corporation (NYSE: XON ) today ... after the market closes on May 11, 2015.  The ... 5:30 PM ET to discuss the results and provide ... may be accessed by dialing 1-888-346-3959 (Domestic US) and ... Call."  Participants may also access the live webcast through ...
(Date:5/1/2015)... , May 1, 2015 /PRNewswire/ - BioAmber Inc. ... sustainable chemicals, today announced that it has priced an underwritten ... at a price of $9.00 per share, and granted ... purchase up to an additional 585,000 shares of its ... be $35.1 million.  The offering is expected to close on ...
(Date:5/1/2015)... , May 1, 2015 Albany Molecular Research ... William S. Marth , AMRI,s President and Chief Executive ... Lynch 2015 Health Care Conference on Wednesday, May 13, ... audio webcast of the presentation can be accessed at ... The webcast will be archived for 90 ...
Breaking Biology Technology:Intrexon to Announce First Quarter 2015 Financial Results on Monday, May 11, 2015 2BioAmber Inc. Announces Pricing Of $35.1 Million Registered Offering 2BioAmber Inc. Announces Pricing Of $35.1 Million Registered Offering 3AMRI to Present at the Bank of America Merrill Lynch 2015 Health Care Conference 2
... development hot-spots across the United States and ... businesses, research groups and other organizations are involved in ... States, according to a new interactive map launched today ... Center. This resource, powered by Google Maps(R) and available ...
... ONTY ) (TSX: ONY) announced today that it closed ... stock and warrants to purchase 2,909,244 shares of its common ... 26, 2009. Oncothyreon sold the shares and warrants for $2.85 ... warrant to purchase 0.75 shares of common stock). The exercise ...
... CAMBRIDGE, Mass., May 27 Gene Network Sciences, ... into a research collaboration with the University ... aimed at accelerating cancer research and drug development ... the clinical and research oncology expertise of UCSF ...
Cached Biology Technology:Synthetic Biology on the Rise 2Oncothyreon announces closing of $11.1 million registered direct financing 2Gene Network Sciences Announces Broad Cancer Collaboration With UCSF and Initial Results 2
Mouse monoclonal antibody raised against a partial recombinant ZNF167. NCBI Entrez Gene ID = ZNF167...
... monoclonal [HDAC8-48] to HDAC8 Regulation ... several mechanisms such as DNA methylation, ... modifications of histones, which include the ... groups of lysine residues present in ...
... polyclonal antibody raised against a ... Immunogen: SLC22A3 (NP_068812, ... partial recombinant protein with GST ... Number: NM_021977 ...
...
Biology Products: