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US 12,479,931 B2Granted
Porous polymeric cellulose prepared via cellulose crosslinking
AssigneeNanopareil, LLC
InventorsSteven Schneiderman, Todd J. Menkhaus, Yong Zhao, Hao Fong, Craig Arnold
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Abstract
The invention relates to porous polymeric cellulose prepared via cellulose crosslinking. The porous polymeric cellulose can be incorporated into membranes and/or hydrogels. In preferred embodiments, the membranes and/or hydrogels can provide high dynamic binding capacity at high flow rates. Membranes and/or hydrogels comprising the porous polymeric cellulose are particularly suitable for filtration, separation, and/or functionalization media.
Claims27
A separation media for biological separations comprising:
- a fiber membrane comprising regenerated cellulose fibers wherein the regenerated cellulose is crosslinked by a multi-functional carboxylic acid;
- wherein the fiber membrane comprises a plurality of pores and/or channels;
- wherein the regenerated cellulose fibers comprise a surface functionalization comprising a cation exchange group, an anion exchange group, or a ligand;
- and
- wherein the fiber membrane comprises at least 30 wt. % of the cellulose.
2 more elements
Dependencies are inferred from the claim text.