Patent ID: 9708455
Date: 2017-07-18
CPC Classifications: A61K,C08F,C08J

Claim:
1. A macroporous electro-responsive cryogel, comprising charged monomers and cross-linker monomers in a ratio of about 8:1 to about 7:0.5 or a ratio of about 8:0.5 to about 40:1 by weight, volume or mole, wherein the cryogel is prepared by polymerizing an aqueous solution of the charged monomers and the cross-linker monomers by freezing at a temperature below the freezing temperature of the aqueous solvent, wherein the charged monomers are about 4% to about 11% by weight, volume or mol of the aqueous solution, and wherein the cryogel is capable of volumetric collapse in response to an electrical stimulus.