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US 11,660,323 B2Granted
Use of Polygonum cuspidatum extracts as photodynamic antimicrobial agents
AssigneePhotoDynamic Inc.
InventorSherri McFarland
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Abstract
The present invention describes a method of killing or inactivating microorganisms, the method comprising the steps of contacting the microorganisms with a composition comprising an extract of Polygonum cuspidatum and an excipient; and irradiating the microorganisms with a source of light; wherein the radiant exposure of the light is between 1 and 300 J cm−2, and the surface power density of the light is between 0.001 and 0.25 W cm−2.
Claims17
A method of killing or inactivating microorganisms, comprising:
- contacting the microorganisms with a composition comprising an extract of Polygonum cuspidatum and an excipient;
- and
- irradiating the microorganisms with a source of light;
- wherein the radiant exposure of the light is between 1 and 300 J cm−2, and the surface power density of the light is between 0.001 and 0.25 W cm−2.
1 more element
Dependencies are inferred from the claim text.