Abstract: Hydrogel compositions including a polymer uniformly embedded with a loading agent are provided. Also provided are methods for extrusion printing hydrogel compositions to provide extruded hydrogel compositions, which can be crosslinked to provide crosslinked hydrogel structures. Also provided are methods for using crosslinked hydrogel structures in chemical processes.

Abstract: A shoulder implant for reestablishing a coracoacromial arch in a subject, the shoulder implant comprising: a dorsal surface substantially shaped as a coracoacromial arch of a shoulder, the dorsal surface for engaging at least a posterior portion of the acromium of the subject when implanted in the subject; and an inferior surface substantially shaped as an acromiohumeral arch of a shoulder, the dorsal surface being opposite the inferior surface. The implant may have a spacer having a convex shape to simulate the anatomic contour of a acromiohumeral arch and the spacer coupled to a baseplate. In certain embodiments, the baseplate and the spacer have a convex surface that may extend the length of the inferior surface of the acromium and anteriorly to the coracoid process.

Abstract: A shoulder implant for reestablishing a coracoacromial arch in a subject, the shoulder implant comprising: a dorsal surface substantially shaped as a coracoacromial arch of a shoulder, the dorsal surface for engaging at least a posterior portion of the acromium of the subject when implanted in the subject; and an inferior surface substantially shaped as an acromiohumeral arch of a shoulder, the dorsal surface being opposite the inferior surface. The implant may have a spacer having a convex shape to simulate the anatomic contour of a acromiohumeral arch and the spacer coupled to a baseplate. In certain embodiments, the baseplate and the spacer have a convex surface that may extend the length of the inferior surface of the acromium and anteriorly to the coracoid process.

Abstract: Hydrogel compositions including a polymer uniformly embedded with a loading agent are provided. Also provided are methods for extrusion printing hydrogel compositions to provide extruded hydrogel compositions, which can be crosslinked to provide crosslinked hydrogel structures. Also provided are methods for using crosslinked hydrogel structures in chemical processes.

Abstract: An apparatus for sorting recyclable materials including an inlet conveyor with a magnetic pulleys that directs magnetic objects out of the flow of recyclable materials. A vacuum inlet is positioned adjacent a stepped region of the conveyor so as to pull lighter weight materials out of the material flow. A size sorting conveyor separates larger objects from the smaller lighter weight objects, and heavier objects such as glass are conveyed to still another collecting region.