Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International

Wikipedia Affiliate Button

Home > Press > Nanomaterial fabric destroys nerve agents in battlefield-relevant conditions: Metal-organic framework-based composites don’t need liquid water to work

Composites made from metal-organic frameworks can destroy nerve agents under relevant conditions. (Credit: Journal of the American Chemical Society)
Composites made from metal-organic frameworks can destroy nerve agents under relevant conditions. (Credit: Journal of the American Chemical Society)

Abstract:
•Smart chemistry quickly makes toxic nerve gases nontoxic
•Material’s features bring it closer to practical use in the field
•New approach is scalable and economical
•Seeks to replace current technology of activated carbon

Nanomaterial fabric destroys nerve agents in battlefield-relevant conditions: Metal-organic framework-based composites don’t need liquid water to work

Evanston, IL | Posted on January 14th, 2020

Northwestern University scientists have successfully combined a nanomaterial effective at destroying toxic nerve agents with textile fibers. This new composite material one day could be integrated into protective suits and face masks for use by people facing hazardous conditions, such as chemical warfare.

The material, a zirconium-based metal-organic framework (MOF), degrades in minutes some of the most toxic chemical agents known to mankind: VX and soman (GD), a more toxic relative of sarin.

“With the correct chemistry, we can render toxic gases nontoxic,” said Omar K. Farha, associate professor of chemistry in the Weinberg College of Arts and Sciences, who led the research. “The action takes place at the nanolevel.”

The authors write that their work represents, to the best of their knowledge, the first example of the use of MOF composites for the efficient catalytic hydrolysis of nerve agent simulants without using liquid water and toxic volatile bases -- a major advantage.

The new composite material integrates MOFs and non-volatile polymeric bases onto textile fibers. The researchers found the MOF-coated textiles efficiently detoxify nerve agents under battlefield-relevant conditions using the gaseous water in the air. They also found the material stands up over a long period of time to degrading conditions, such as sweat, atmospheric carbon dioxide and pollutants.

These features bring the promising material closer to practical use in the field.

“MOFs can capture, store and destroy a lot of the nasty material, making them very attractive for defense-related applications,” said Farha, a member of the International Institute for Nanotechnology.

MOFs are well-ordered, lattice-like crystals. The nodes of the lattices are metals, and organic molecules connect the nodes. Within their very roomy pores, MOFs can effectively capture gases and vapors, such as nerve agents.

It is these roomy pores that also can pull enough water from the humidity in the air to drive the chemical reaction in which water is used to break down the bonds of the nerve agent.

The approach developed at Northwestern seeks to replace the technology currently in use: activated carbon and metal-oxide blends, which are slower to react to nerve agents. Because the MOFs are built from simple components, the new approach is scalable and economical.

The research was supported by the Defense Threat Reduction Agency (grants HDTRA1-18-1-0003 and CB3934) and the National Science Foundation Graduate Research Fellowship (grant DGE-1842165).

The title of the paper is “Integration of Metal–Organic Frameworks on Protective Layers for Destruction of Nerve Agents under Relevant Conditions.” The first authors are Zhijie Chen and Kaikai Ma, postdoctoral fellows in Farha’s research group.

####

For more information, please click here

Contacts:
Source contact: Omar Farha at

Media contact:
Megan Fellman

847.491.3115

Copyright © Northwestern University

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

The study was published recently in the Journal of the American Chemical Society. The title of the paper is “Integration of Metal–Organic Frameworks on Protective Layers for Destruction of Nerve Agents under Relevant Conditions.” The first authors are Zhijie Chen and Kaikai Ma, postdoctoral fellows in Farha’s research group.:

Related News Press

News and information

Let the europium shine brighter January 21st, 2020

Nanotubes may give the world better batteries: Rice U. scientists' method quenches lithium metal dendrites in batteries that charge faster, last longer January 16th, 2020

Quantum physics: Controlled experiment observes self-organized criticality January 16th, 2020

Pretty with a twist: Complex porous, chiral nano-patterns arise from a simple linear building block January 16th, 2020

Chemistry

Toward safer disposal of printed circuit boards January 16th, 2020

Gasification goes green: Rice's low-temp photocatalyst could slash the carbon footprint for syngas January 10th, 2020

Molecular factories: The combination between nature and chemistry is functional January 10th, 2020

Clusters of gold atoms form peculiar pyramidal shape January 3rd, 2020

Govt.-Legislation/Regulation/Funding/Policy

Study finds billions of quantum entangled electrons in 'strange metal' Physicists provide direct evidence of entanglement's role in quantum criticality January 16th, 2020

Pretty with a twist: Complex porous, chiral nano-patterns arise from a simple linear building block January 16th, 2020

Toward safer disposal of printed circuit boards January 16th, 2020

Researchers gain control over internal structure of self-assembled composite materials January 16th, 2020

Possible Futures

Let the europium shine brighter January 21st, 2020

Study finds billions of quantum entangled electrons in 'strange metal' Physicists provide direct evidence of entanglement's role in quantum criticality January 16th, 2020

Nanotubes may give the world better batteries: Rice U. scientists' method quenches lithium metal dendrites in batteries that charge faster, last longer January 16th, 2020

Researchers gain control over internal structure of self-assembled composite materials January 16th, 2020

Nanomedicine

A New Old Therapy: A controlled phage therapy can target drug-resistant bacteria while sidestepping potential unintended consequences January 13th, 2020

Copper-based nanomaterials can kill cancer cells in mice January 10th, 2020

Molecular factories: The combination between nature and chemistry is functional January 10th, 2020

Tech company NANOBIOTIX announces late-stage registration trial and global development plan for 2020 January 8th, 2020

Discoveries

Let the europium shine brighter January 21st, 2020

Quantum physics: Controlled experiment observes self-organized criticality January 16th, 2020

Pretty with a twist: Complex porous, chiral nano-patterns arise from a simple linear building block January 16th, 2020

Toward safer disposal of printed circuit boards January 16th, 2020

Announcements

Let the europium shine brighter January 21st, 2020

Quantum physics: Controlled experiment observes self-organized criticality January 16th, 2020

Pretty with a twist: Complex porous, chiral nano-patterns arise from a simple linear building block January 16th, 2020

Toward safer disposal of printed circuit boards January 16th, 2020

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers/Posters

Let the europium shine brighter January 21st, 2020

Quantum physics: Controlled experiment observes self-organized criticality January 16th, 2020

Pretty with a twist: Complex porous, chiral nano-patterns arise from a simple linear building block January 16th, 2020

Toward safer disposal of printed circuit boards January 16th, 2020

Homeland Security

A bullet-proof heating pad November 2nd, 2018

Northwestern researchers achieve unprecedented control of polymer grids: Materials could find applications in water purification, solar energy storage, body armor June 22nd, 2018

Powering the 21st Century with Integrated Photonics: UCSB-Led Team Selected for Demonstration of a Novel Waveguide Platform Which is Transparent Throughout the MWIR and LWIR Spectral Bands June 19th, 2018

Squeezing light at the nanoscale: Ultra-confined light could detect harmful molecules June 17th, 2018

Military

Study finds billions of quantum entangled electrons in 'strange metal' Physicists provide direct evidence of entanglement's role in quantum criticality January 16th, 2020

Researchers gain control over internal structure of self-assembled composite materials January 16th, 2020

A new approach to making airplane parts, minus the massive infrastructure: Carbon nanotube film produces aerospace-grade composites with no need for huge ovens or autoclaves. January 13th, 2020

In leap for quantum computing, silicon quantum bits establish a long-distance relationship: Princeton scientists demonstrate that two silicon quantum bits can communicate across relatively long distances in a turning point for the technology December 27th, 2019

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project