The development of the United States to develop anti-chemical weapons nano garments progress

The neurotoxic agent is a highly toxic chemical weapon. In the development of equipment to prevent this agent, U.S. researchers have discovered that the catalyst-treated carbon nanotube material is expected to “decompose” the neurotoxic agent in the hope that the agent will eventually be invaded and poisoned. human body.

The US National Institute of Standards and Technology issued a statement on the 6th that a copper-based catalyst can break a key chemical bond of a large number of gas molecules in a neurotoxic agent at a lower dose, thereby eliminating the toxicity of the toxic agent. If carbon nanotubes are used in combination, the ability of the copper-based catalyst to decompose the poison can be further enhanced.

The statement pointed out that as carbon nanotubes can be easily "woven" and incorporated into apparel fabrics, this finding may help protect those involved in chemical weapons cleanup operations.

The Institute of Standards and Technology of the United States said that in order to protect itself, the researchers did not use real neurotoxic agents in the experiments, but instead used “simulated molecules” with the same chemical bond as neurotoxic agents. They first adhered copper-based catalyst molecules to long tubular carbon nanotubes, then applied the resulting composite to a small piece of paper, and placed the paper in a solution of the toxic agent "analogue molecule."

According to the participation of researcher John Heddleston, the solution was transparent at first, almost like water. However, after the paper pieces subjected to the above treatment were poured, the solution started to yellow as the decomposition product accumulated. After one hour, there are obvious differences. The longer it has been placed, the more yellow it is, indicating that more and more toxic “analogue molecules” have been “deconstructed”.

However, the researchers also admitted that there are still several issues that need to be resolved before the introduction of such CNT protective clothing. For example, when adding copper-based catalysts to the garments, better results can be obtained and whether this catalytic reaction will be more effective. Go ahead and so on.

A neurotoxic agent is a poison that destroys the normal conduction function of the nervous system and is a class of weapons of mass destruction. It can cause poisoning and even death in many ways such as respiratory tract and skin. The sarin gas used in the Tokyo Metro poison gas case in 1995 was a neurotoxic agent.

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July 20, 2023