Specialty Fabrics Review December 2021 - 10

[ BRIEFS ] swatches
New composite fabric can deactivate
biological, chemical threats
A
research group at Northwestern University has created a versatile composite
fabric that has the potential to deactivate both biological threats, such as novel
coronaviruses, and chemical threats, like those used in chemical warfare.
The researchers said the global health crisis caused by the SARS-CoV-2 outbreak
and the use of chemical warfare agents highlight the need to develop efficient
protective clothing to combat these new threats.
It is unusual to find a material that is
effective against both types of threats.
Metal organic frameworks, or MOFs,
are the secret of the new technology,
said Omar Farha, an MOF expert at
Northwestern. Farha likened MOFs to
" sophisticated bath sponges. " Holes are
designed in the nano-sized materials to
capture vapors, gases and other agents
similar to how a sponge captures water.
The cavities of the MOFs consist
of catalysts that have the potential to
deactivate harmful bacteria, viruses
and chemicals. The MOF material's
nanopores coated on the textile are
broad enough to enable water and
sweat to escape, so when used in a
face mask, for example, the material
functions both ways-it safeguards the
user from virus entry and it protects
people who come into contact with an
infected mask wearer.
Significantly, the new material can
be reused, making it ideal for face
masks and protective clothing. After
exposure to a biological or chemical
threat, a simple bleach treatment will
restore the fabric to its original state.
Farha said the composite material is
Researchers have developed a versatile
composite fabric that can deactivate
both biological and chemical threats.
A material that is effective against
both classes of threats is rare. Photo:
Northwestern University.
scalable, as it just needs fundamental
textile processing equipment that is
already widely used in the industry.
Additionally, the scientists were able to understand the material's active sites
down to atomic level. This enables them and others to derive structure-property
relationships that could pave the way for making other MOF-based composites.
The group's research was reported in the September issue of the Journal of the
American Chemical Society (JACS). The study was financially supported by a National
Science Foundation RAPID grant, the Army Research Office and the Defense Threat
Reduction Agency.
10 SPECIALTY FABRICS REVIEW / December 2021

Specialty Fabrics Review December 2021

Table of Contents for the Digital Edition of Specialty Fabrics Review December 2021

Specialty Fabrics Review December 2021 - Cover1
Specialty Fabrics Review December 2021 - Cover2
Specialty Fabrics Review December 2021 - 1
Specialty Fabrics Review December 2021 - 2
Specialty Fabrics Review December 2021 - 3
Specialty Fabrics Review December 2021 - 4
Specialty Fabrics Review December 2021 - 5
Specialty Fabrics Review December 2021 - 6
Specialty Fabrics Review December 2021 - 7
Specialty Fabrics Review December 2021 - 8
Specialty Fabrics Review December 2021 - 9
Specialty Fabrics Review December 2021 - 10
Specialty Fabrics Review December 2021 - 11
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Specialty Fabrics Review December 2021 - 19
Specialty Fabrics Review December 2021 - 20
Specialty Fabrics Review December 2021 - 21
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Specialty Fabrics Review December 2021 - 55
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Specialty Fabrics Review December 2021 - cover3
Specialty Fabrics Review December 2021 - cover4
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