| Abstract: |
The invention provides fabrics that incorporate enzymes that inactivate microbial pathogens, particularly enveloped viral particles such as those of Influenza virus and Coronavirus such as Covid-19. The fabrics of the invention may be used in the production of various items including protective facemasks. |
| Inventor: |
Ward, Mandy Jane (Los Osos, CA, US); Bell, Adam Warwick (San Francisco, CA, US) |
| Applicant: |
Ward, Mandy Jane (Los Osos, CA, US); Bell, Adam Warwick (San Francisco, CA, US) |
| Face Assignee: |
N/A |
| Filed: |
2020-09-16 |
| Issued: |
2021-03-02 |
| Claims: |
6 |
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US10932505
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1. A disposable face mask which when worn, covers the nose and mouth of a wearer, comprising at least two layers of fabric, wherein one layer of fabric has enzymes incorporated within it, wherein the enzymes explicitly exclude enzymes that bind specifically to the spike protein of a coronavirus, and comprise low-temperature proteases and low-temperature lipases which enzymes are functionally active at a temperature between 17° C. to 23° C., and wherein, the fabric layer that has enzymes incorporated within it is separated from the face of the wearer by at least one other layer of fabric that does not have enzymes incorporated within it, wherein the enzymes inactivate enveloped viruses carried in an aqueous droplet, upon contact with the fabric, wherein the inactivation time T75 is less than 30 minutes.
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2. A method for excluding airborne pathogens from the respiratory tract of a subject, the method comprising:
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