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New material will neutralize the nerve gas - VIDEO PDF Print E-mail
Friday, 20 March 2015 03:00

Nerve gases are one of the most frightening types of chemical weapons. They were first developed in Germany in 1936. These substances are simple in terms of chemistry, but deadly to humans.

They consist of a phosphorus-containing organic chemicals called organophosphates, and act by blocking the enzyme acetylcholinesterase, which is why the muscles of the body can not return to a state of relaxation, and the nerve impulses do not reach the organs and tissues.

Whether it sarin, soman, VX or other agents to have a frightening sequence of symptoms. Often it appears cold, rapidly developing into full respiratory failure and convulsions.

The gas enters the body not only due to breathing, it is absorbed through the skin. That is, you must use protective clothing covering the entire body. Disposal of stocks nerve gases usually occurs in complex plasma furnaces.

In today's world almost every military conflict accompanied by the use of chemical weapons, in particular, the above-described chemical agents, which is very hard to resist. However, the team of scientists from Northwestern University has developed a new material that can neutralize the nerve gas.

The compound, called NU-1000 is a zirconium-based catalyst structures organometallic (metal-organic framework). It can be useful for disposal of chemical weapons stockpiles, as well as in the manufacture of gas masks and protective suits for soldiers and rescuers.

The creation of NU-1000 scientists inspired natural enzyme phosphotriesterases, which is produced by some bacteria and is involved in the regulation of signaling pathways. Since natural enzymes capable of acting only in a narrow range of conditions and very quickly break, the team from Northwestern University has decided to develop an inorganic catalyst, more reliable and more "enduring" molecular structure.

The creators claim that NU-1000 is capable of decomposing COMAP, more dangerous version of sarin, neutralizing it in a matter of minutes. In addition, the catalyst works in a wide range of conditions, making it suitable for use directly on the battlefield.

"This material is thermally and chemically stable, so that no matter the circumstances in which it is located or transported, - said the head of the research team Farah Omar (Omar K. Farha). - The material can withstand moisture, water, and temperature to 130 - 15 degrees , dust storm. The soldiers did not have to worry that their protective mask in some circumstances may become unUSAble - the catalyst is always effective. "

Organometallic structure in the NU-1000 form a porous crystal lattice, which constrains agents, providing the catalyst time to work. When the nerve gas is trapped lattice, he meets with zirconium phosphate Deplete the ester bond in the molecule. During the further hydrolysis of deadly poison turns into harmless chemical in minutes. In this reaction does not require the presence of water, the usual air moisture is sufficient.

Tests were conducted using a substance that simulates sarin. However, the computer simulation shows that the NU-1000 will also effectively fight against other agents such as VX.

Currently, researchers are developing a wide range of catalyst that can be neutralized and Durga nerve agents. The novelty there is another drawback: the natural enzyme acts in the 1,000-10,000 times faster. Scientists have yet to work on bystrodeystvennostyu catalyst.

The scientific article about the new development was published in the journal Nature materials.


НАЖМИТЕ ЗДЕСЬ ДЛЯ ПРОСМОТРА ВСЕГО СПИСКА НОВОСТЕЙ О НЕОБЫЧНЫХ ЯВЛЕНИЯХ>>>

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