Devices, Systems And Methods For Reducing The Concentration Of A Chemical Entity In Fluids (2)

Structure Comprising A Porous Layer, A Gas Permeable, Nonporous Layer Adjacent A Surface Of The Porous Layer, And Immobilized Carbonic Anhydrase On A First Surface Of The Nonporous Layer Exhibits Carbonic Anhydrase Activity Of At Least 20% Of Maximum Theoretical Activity Of The First Surface

Inventors: William J. Federspiel: Alan J. Russell: Joel Kaar: Heung-Il Oh

Patent Number: 11/811,265

Abstract

A device for removal of at least a portion of carbon dioxide from an aqueous fluid includes at least one membrane through which carbon dioxide can pass to be removed from the fluid and immobilized carbonic anhydrase on or in the vicinity of a first surface of the membrane to be contacted with the fluid such that the immobilized carbonic anhydrase comes into contact with the fluid. The first surface exhibits carbonic anhydrase activity of at least 20% of maximum theoretical activity of the first surface of the membrane based on monolayer surface coverage of carbonic anhydrase in the case that the carbonic anhydrase is immobilize on the first surface.
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