Subscribe free to our newsletters via your
. Military Space News .




TERROR WARS
New substances 15,000 times more effective in destroying chemical warfare agents
by Staff Writers
Washington DC (SPX) Aug 14, 2012


File image.

In an advance that could be used in masks to protect against nerve gas, scientists are reporting development of proteins that are up to 15,000 times more effective than their natural counterpart in destroying chemical warfare agents. Their report appears in ACS' journal Biochemistry.

Frank Raushel, David Barondeau and colleagues explain that a soil bacterium makes a protein called phosphotriesterase (PTE), which is an enzyme that detoxifies some pesticides and chemical warfare agents like sarin and tabun.

PTE thus has potential uses in protecting soldiers and others. Natural PTE, however, works against only one of the two molecular forms of these chemical warfare agents, and it happens to be the less toxic form. The scientists thus set out to develop new versions of PTE that were more effective against the most toxic form.

To improve the enzyme's activity, Raushel and colleagues used an approach called "directed evolution." This technique imitates the way natural selection leads to improved forms of the biochemical substances in living things.

In using directed evolution, the team made small random changes to the natural enzyme's chemical architecture and then tested resulting mutant enzymes for their ability to break down nerve agents. They isolated several mutants that fit the bill, including one that proved to be 15,000 times more effective than the natural enzyme.

.


Related Links
American Chemical Society
The Long War - Doctrine and Application






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





TERROR WARS
Holder sued over botched US-Mexico arms operation
Washington (AFP) Aug 13, 2012
A US congressional committee filed a lawsuit Monday to force Attorney General Eric Holder to turn over documents related to a botched gun-running operation called "Fast and Furious." "The House's filing asks the federal court to rule that President (Barack) Obama's assertion of executive privilege was invalid and compel Attorney General Eric Holder to produce subpoenaed documents," said a st ... read more


TERROR WARS
Israel military tests SMS system

Israel boosts missile defense with Arrow-2

Rafael key to blocking Hezbollah missiles

U.S. Patriot deal to boost Kuwait defenses

TERROR WARS
Iran says upgraded short-range missile test-fired

Raytheon awarded contract to produce new Rolling Airframe Missile

Raytheon Evolved SeaSparrow program delivers 2,000th missile

New Raytheon warhead lethal to enemy rockets

TERROR WARS
First Flight of the Long Endurance Multi-Intelligence Vehicle

Autonomous robotic plane flies indoors

Lockheed Martin Procerus Technologies Unveils New Unmanned Quad Rotor Vertical Take-Off and Landing System

Boeing Team Demonstrates Expanded Control of Unmanned Aircraft Swarm

TERROR WARS
Raytheon unveils cross domain strategy to securely access information via mobile devices

NATO Special Forces Taps Mutualink for Global Cross Coalition Communications

Northrop Grumman Demonstrates Integrated Receiver Circuit Under DARPA Program

Boeing Receives 10th WGS Satellite Order from USAF

TERROR WARS
Burnt wreckage of two Ugandan army helicopters found

Israel's IMI banned from Indian contracts

Brazil getting armored vehicles, boats

British defense scientists make progress

TERROR WARS
EADS bosses told of questionable payments in 2007: FT

Sri Lanka eyes Mi-17 helicopters

Former Blackwater fined $7.5 mn over US arms case

Abidjan hosts flourishing trade in automatic weapons

TERROR WARS
Outside View: Obama Doctrine

US says new Egypt defense minister wants close ties

Bo's wife blames breakdown for Briton's murder

Inflatables and politics as China's leaders hit the beach

TERROR WARS
New Phenomenon in Nanodisk Magnetic Vortices

Oh, my stars and hexagons! DNA code shapes gold nanoparticles

UCF nanoparticle discovery opens door for pharmaceuticals

New structural information on functionalization of gold nanoparticles




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement