Abstract: A method and surface for separating materials are disclosed. The method includes associating the materials with a surface having a ligand. The ligand includes a hydrophobic unit and an anionic unit. The method further includes forming a material-ligand complex, washing the surface, and eluting the materials from the material-ligand complex. The surface is operational to separate materials. The surface includes a ligand operable to associate with the materials. The ligand includes a hydrophobic unit and an anionic unit.

Abstract: The present disclosure pertains to an active agent delivery device for insertion into a blood vessel that includes: (1) a proximal end, a distal end, and an exterior surface between the proximal and distal ends; (2) a lumen extending from the proximal end to the distal end beneath the exterior surface and operable to facilitate blood flow through the blood vessel; (3) an active agent dispenser associated with the exterior surface and operable to release an active agent into the blood vessel; (4) an irrigation channel operable to remove materials from the blood vessel; and (5) an expandable structure at or near the distal end and operable to expand downstream the blood vessel region containing the device and localize released actives agent proximal to the region containing the device. The present disclosure also pertains to methods of using the device to deliver active agents into blood vessels of subjects.

Abstract: In one aspect, catalytic membranes are described herein. In some embodiments, a catalytic membrane comprises a surface functionalized with a polymer, the polymer comprising cellulose solubilization functionalities and acid functionalities for the catalytic hydrolysis of cellulose and/or hemicellulose.

Abstract: In one aspect, catalytic membranes are described herein. In some embodiments, a catalytic membrane comprises a surface functionalized with a polymer, the polymer comprising cellulose solubilization functionalities and acid functionalities for the catalytic hydrolysis of cellulose and/or hemicellulose.

Abstract: In one aspect, catalytic membranes are described herein. In some embodiments, a catalytic membrane comprises a surface functionalized with a polymer, the polymer comprising cellulose solubilization functionalities and acid functionalities for the catalytic hydrolysis of cellulose and/or hemicellulose.

Abstract: The invention provides permeable magnetically responsive filtration membranes that include a filtration membrane polymer base suitable for fluid filtration; hydrophilic polymers conjugated to the surface of the filtration membrane polymer; and magnetic nanoparticles affixed to the ends of a plurality of the hydrophilic polymers, wherein the hydrophilic polymers are movable with respect to the surface of the filtration membrane polymer surface in the presence of an oscillating magnetic field.

Abstract: In one aspect, catalytic membranes are described herein. In some embodiments, a catalytic membrane comprises a surface functionalized with a polymer, the polymer comprising cellulose solubilization functionalities and acid functionalities for the catalytic hydrolysis of cellulose and/or hemicellulose.

Abstract: The invention provides permeable magnetically responsive filtration membranes that include a filtration membrane polymer base suitable for fluid filtration; hydrophilic polymers conjugated to the surface of the filtration membrane polymer; and magnetic nanoparticles affixed to the ends of a plurality of the hydrophilic polymers, wherein the hydrophilic polymers are movable with respect to the surface of the filtration membrane polymer surface in the presence of an oscillating magnetic field.

Abstract: Improved devices for blood separations are provided based on the use of hollow fiber membrane arrays in extra-lumenal crossflow filtration. Blood is processed extra-lumenally across an ordered array of microporous hollow fibers to separate cells from plasma. By use of extra-lumenal crossflow filtration with suitably oriented fibers, the separation device is more efficient than existing devices which benefits a patient or donor by reducing extracorporeal volume.