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US 9,486,742 B1Granted
Biomimetic membranes and methods of making biomimetic membranes
AssigneeSandia Corporation
InventorsSusan Rempe, C. Jeffrey Brinker, David Michael Rogers, Ying-Bing Jiang, Shaorong Yang
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Abstract
The present disclosure is directed to biomimetic membranes and methods of manufacturing such membranes that include structural features that mimic the structures of cellular membrane channels and produce membrane designs capable of high selectivity and high permeability or adsorptivity. The membrane structure, material and chemistry can be selected to perform liquid separations, gas separation and capture, ion transport and adsorption for a variety of applications.
Claims10
A membrane, comprising:
- a support comprising a plurality of pores having a pore length and a first pore depth extending from a pore opening;
- wherein the plurality of pores have a first pore diameter from a pore opening to a first pore depth and a second pore diameter from the first pore depth to the pore length;
- a nanoporous structure disposed within the plurality of pores from the pore opening up to the first pore depth, wherein the nanoporous structure comprises:
- a plurality of nanopores having a first nanopore diameter having a first nanopore surface chemistry extending from a nanopore opening to a first nanopore depth and a second nanopore diameter having a second nanopore surface chemistry extending from the first nanopore depth to a second nanopore depth;
- and
- wherein a polymer film is attached to the first nanopore surface chemistry to the first pore depth;
- and
- wherein the polymer film is selected from a group consisting of polyamides, polypeptides, polyarylenes polycelluloses, polystyrenes, polycarbonates, polysulfones, polyvinylacetates, polyacrylonitriles, poly(N-isopropylacrylamides), ionomers, elastins and proteins.
5 more elements
Dependencies are inferred from the claim text.