Patent ID: 11890386
Assignee: REGENTS OF THE UNIVERSITY OF MINNESOTA
Field: Medical technology (Instruments)
Classification: CPC A  B | IPC A  B

Claim 0:
1. A method of disinfecting particulate material, the method comprising:
combining the particulate material with a photocatalyst to yield a mixture;
irradiating the mixture for a length of time with pulses from a light source having broadband emission spectrum between 190 nm-1100 nm to yield an irradiated mixture, wherein irradiating the mixture inactivates microorganisms in the mixture to yield a disinfected mixture; and
separating the photocatalyst from the disinfected mixture to yield the disinfected particulate matter,
wherein the photocatalyst is disposed on a substrate to yield a photocatalytic substrate, the substrate comprises a polymer, a metal, or a metal oxide, and a weight ratio of the photocatalyst to the photocatalytic substrate is in a range of 1:1 to 1:100.