Patent ID: 7754077

Claim:
A dialysis membrane, comprising: a semipermeable polymer comprising a monomer/cross-linker/solvent solution comprising (i) a monomer selected from the group consisting of alkyl-acrylates, polyfunctional acrylates, and zwitterionic molecules, (ii) a cross-linker material selected from the group consisting of polyfunctional acrylates, polyfunctional methacrylates, and polyfunctional acrylamides, (iii) a solvent medium, and (iv) a photo-initiator, wherein the semipermeable polymer is prepared by localized photo-initiated phase separation polymerization, wherein the semipermeable polymer comprises a plurality of segments disposed between an inlet end and an outlet end of a microchannel network fixedly attached to one or more interior surfaces of the microchannel network and to a plurality of about equally spaced support structures bisecting one or more of the microchannels within the microchannel network.