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Preparation of aligned nanotube membranes for water and gas separation applications

United States Patent

January 5, 2016
View the Complete Patent at the US Patent & Trademark Office
Fabrication methods for selective membranes that include aligned nanotubes can advantageously include a mechanical polishing step. The nanotubes have their ends closed off during the step of infiltrating a polymer precursor around the nanotubes. This prevents polymer precursor from flowing into the nanotubes. The polishing step is performed after the polymer matrix is formed, and can open up the ends of the nanotubes.
Lulevich; Valentin (Berkeley, CA), Bakajin; Olgica (San Leandro, CA), Klare; Jennifer E. (Berkeley, CA), Noy; Aleksandr (San Carlos, CA)
Porifera, Inc. (Hayward, CA)
13/ 654,057
October 17, 2012
GOVERNMENT SPONSORSHIP This invention was made with Government support under contract number DE-AR0000025 awarded by the Department of Energy and under contract number W911NF-09-C-0079 awarded by the Department of Defense. The Government has certain rights in this invention.