US 11,958,006 B2
Laser-induced graphene filters and methods of making and using same
James M. Tour, Bellaire, TX (US); Michael G. Stanford, Houston, TX (US); John Li, Houston, TX (US); Yieu Chyan, Houston, TX (US); Christopher John Arnusch, Midreshet Ben-Gurion (IL); and Steven E. Presutti, Houston, TX (US)
Assigned to William Marsh Rice University, Houston, TX (US); and B.G. Negev Technologies and Applications Ltd., at Ben-Gurion University, Beer Sheva (IL)
Appl. No. 16/969,131
Filed by WILLIAM MARSH RICE UNIVERSITY, Houston, TX (US); and B.G. NEGEV TECHNOLOGIES and APPLICATIONS LTD., at Ben-Gurion University, Beer Sheva, IL (US)
PCT Filed Aug. 10, 2020, PCT No. PCT/US2020/045680
§ 371(c)(1), (2) Date Aug. 11, 2020,
PCT Pub. No. WO2021/030300, PCT Pub. Date Feb. 18, 2021.
Claims priority of provisional application 62/884,758, filed on Aug. 9, 2019.
Prior Publication US 2023/0173419 A1, Jun. 8, 2023
Int. Cl. B01D 39/20 (2006.01); B01D 46/00 (2022.01); B01D 46/48 (2006.01); B01D 46/66 (2022.01); B01D 46/84 (2022.01); C01B 32/184 (2017.01)
CPC B01D 39/2055 (2013.01) [B01D 46/0001 (2013.01); B01D 46/48 (2013.01); B01D 46/785 (2022.01); B01D 46/84 (2022.01); B01D 2201/088 (2013.01); B01D 2221/10 (2013.01); B01D 2279/65 (2013.01); C01B 32/184 (2017.08)] 30 Claims
OG exemplary drawing
 
13. A LIG filter comprising:
(a) LIG, wherein
(i) the LIG is on a first side of the LIG filter and is on a second side of the LIG filter, wherein the LIG on the first side of the LIG filter is adjacent the LIG on the second side of the LIG filter, and
(ii) the LIG filter has a porosity such that the LIG filter is configured to allow a flow of air through the LIG on the first side of the LIG filter to the LIG on the second side of the LIG filter; and
(b) a LIG precursor material is on the first side of the LIG filter and is on the second side of the LIG filter, wherein
(i) the LIG precursor material on the first side of the LIG filter is a support of the LIG on the first side of the LIG filter,
(ii) the LIG precursor material on the second side of the LIG filter is a support of the LIG on the second side of the LIG filter, and
(iii) the LIG filter is capable of capturing particles selected from a group consisting of virus particles, airborne microorganisms, byproducts of the microorganisms, microorganism-associated toxins, and combinations thereof.