Back to results
US 12,622,474 B2Granted
Antiviral mask and antiviral filter made from a breathable microporous polymeric membrane
AssigneeUniversity of Kentucky Research Foundation
InventorsDibakar Bhattacharyya, J. Todd Hastings, Thomas D. Dziubla, Yinan Wei, Rollie Mills, R.J. Vogler, Matthew Bernard, Jacob Concolino, Kevin C. Baldridge
Life of this patent
Estimating the term…
Abstract
An antiviral mask and antiviral filter include a thin breathable, microporous polymeric membrane. That membrane may include a plurality of pores functionalized with a proteolytic enzyme, an antibody or a combination thereof. The antiviral mask and antiviral filter may also include a coating of graphene oxide, lignin sulfonate or a combination thereof and/or a fluorescent virus tagging agent.
Claims12
An antiviral mask, comprising:
- a body having a breathable, microporous polymeric membrane with a thickness of between about 30 microns and about 500 microns;
- and
- a securing strap connected to the body and adapted to secure the antiviral mask in place over a nose and a mouth of a user wherein (a) the polymeric membrane has a porosity of between about 20% and about 80% and an average pore size of between about 15 nm and about 300 nm, (b) the polymeric membrane is made from a material selected from a group consisting of polyvinylidene difluoride, polysulfone, poly (methacrylic acid) functionalized polyvinylidene difluoride, poly (methacrylic acid) functionalized polysulfone, poly (methacrylic acid functionalized polypropylene (PP) and combinations thereof, (c) the polymeric membrane includes a plurality of pores functionalized with a proteolytic enzyme, an antibody or combinations thereof, and (d) the proteolytic enzyme is selected from a group consisting of subtilisin, trypsin, papain, proteinase K, chymotrypsin, elastase and combinations thereof.
Dependencies are inferred from the claim text.