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article imageGraphene based face mask uses novel technology to inhibit viruses Special

By Tim Sandle     Jan 20, 2021 in Science
A face mask that utilizes graphene technology has proven efficacy for capturing viruses at a level comparable with surgical masks and then to inhibit the capture virions through the activity of the graphene. Digital Journal reviews.
A new graphene face mask has just been released to the public. The mask filters out 98 percent of respiratory particles, which is a higher efficiency rating than N95 masks (which are rated at 95 percent).
The mask is called the Medicevo Graphene Face Mask and it consists of embedded graphene netting. He mask matrix provides an electrostatic mesh to capture particles.
The packaging for the Medicevo face masks.
The packaging for the Medicevo face masks.
Graphene is composed of a single, thin layer of graphite (itself an allotrope of carbon), which is layered as single atoms. The material is 100 times stronger than the strongest steel and a good conductor of electricity. Graphene is also transparent and flexible. This helps with the creating of breathable barrier layers in fabrics.
Graphene has antiviral properties in terms of inhibiting viruses. A report in Nano Today (“Can graphene take part in the fight against COVID-19?”), published in 2020, finds the material provides a large contact area for the adsorption of virions and can inhibit them on contact, rendering them non-infectious. Carbon-based nanomaterials appear adept at viral capture and inhibition.
Graphene promises a world of future applications  including super-fast electronics  ultra-sensitive ...
Graphene promises a world of future applications, including super-fast electronics, ultra-sensitive sensors and incredibly durable materials – including face masks.
In terms of filter face efficacy, the masks have been examined using American Society for Testing and Materials (ASTM) standards for Medical Face Masks - ASTM F2299(ASTM F2100). The masks have been evaluated for fifteen standard wear times.
The masks passed flammability testing and has scored a 4.2 out of 5 for differential breathability pressure. With size exclusion, the masks scored a 98 percent bacterial filter efficiency (against 0.3 micrometres) and a 96 percent particle filtration efficiency. Furthermore, the masks meet level two in terms of fluid resistance.
The mask also meets the European Union standard EN149:2001, reaching the classification for a ‘filter face piece’ (FFP) level 2.
Side view of the Medicevo Face Mask  showing the over-ear design. Modelled by Tim Sandle.
Side view of the Medicevo Face Mask, showing the over-ear design. Modelled by Tim Sandle.
In terms of comfort, the masks have an innovative over-the-ear design, and they are cushioned so they feel comfortable when covering the nose and mouth. This reflects the mask being designed according to the 3D properties of the person wearing it.
The technology that has gone into the mask makes it one of the most effective items of personal protective equipment (PPE) available on the marketplace.
The masks retail for $39.95 for five masks.
More about Graphene, face mask, Viruses, nanofiltration, Mask
 
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