William Marsh Rice University

Ben-gurion University of the Negev Research and Development Authority

B.G. Negev Technologies and Applications Ltd.

John T Li

James Mitchell Tour

Christopher John Arnusch

Steven E Presutti

Michael G Stanford

Duy X Luong

Yieu Chyan

Swatantra Pratap Singh

Kaichun Yang

Amit Kumar Thakur

Gas sensors having laser-induced graphene (LIG) and/or LIG composites, and methods of making and using gas sensors having LIG and/or LIG composites.

Laser-induced graphene sensors and methods of making and using same

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.

Laser-induced graphene filters and methods of making and using same

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Houston, TX, United States of America

John T Li