Invention Publication
- Patent Title: LASER-INDUCED GRAPHENE FILTERS AND METHODS OF MAKING AND USING SAME
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Application No.: US16969131Application Date: 2020-08-10
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Publication No.: US20230173419A1Publication Date: 2023-06-08
- Inventor: James M. Tour , Michael G. Stanford , John Li , Yieu Chyan , Christopher John Arnusch , Steven E. Presutti
- Applicant: WILLIAM MARSH RICE UNIVERSITY
- Applicant Address: US TX Houston
- Assignee: WILLIAM MARSH RICE UNIVERSITY
- Current Assignee: WILLIAM MARSH RICE UNIVERSITY
- Current Assignee Address: US TX Houston
- International Application: PCT/US20/45680 2020.08.10
- Date entered country: 2020-08-11
- Main IPC: B01D39/20
- IPC: B01D39/20 ; B01D46/00 ; B01D46/48 ; B01D46/66 ; B01D46/84

Abstract:
Virus and microbe-killing, self-sterilizing resistive heated air filters and methods of making and using same methods. The air filter is includes laser-induced graphene (LIG), a porous conductive graphene foam formed through photothermal conversion of a polyimide film (or another source or source of polymer or other LIG precursor material) by a laser source. The LIG in the air filter can capture particulates and bacteria. The bacteria cannot proliferate even when submerged in culture medium. Through a periodic Joule-heating mechanism, the filter easily reaches greater than 300° C. This destroys any microorganisms including bacteria, along with molecules that can cause adverse biological reactions and diseases such as viruses, pyrogens, allergens, exotoxins, endotoxins, teichoic acids, mycotoxins, nucleic acids, and prions
Public/Granted literature
- US11958006B2 Laser-induced graphene filters and methods of making and using same Public/Granted day:2024-04-16
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