University of Pittsburgh

Yang Zhu

William Richard Wagner

Tomo Yoshizumi

Hongbin Jiang

Stephen Francis Badylak

Yasumoto Matsumura

Hideyoshi Sato

Hong Jiang

Murugesan Velayutham

Provided are novel biocompatible copolymers, compositions comprising the copolymers, and methods of using the copolymers. The copolymers are non-toxic and typically have an LCST below 37° C. Compositions comprising the copolymers can be used for wound treatment, as a cellular growth matrix or niche and for injection into cardiac tissue to repair and mechanically support damaged tissue. The copolymers comprise numerous ester linkages so that the copolymers are erodible in situ. Degradation products of the copolymers are soluble and non-toxic. The copolymers can be amine-reactive so that they can conjugate with proteins, such as collagen. Active ingredients, such as drugs, can be incorporated into compositions comprising the copolymers.

Biodegradable, thermally responsive injectable hydrogel for treatment of ischemic cardiomyopathy

Provided herein are antioxidant, thermally-responsive copolymer-based compositions and methods of making and using the compositions, e.g., for treatment of ischemia reperfusion injury in a patient. The copolymer comprises a hydrocarbyl backbone, and a plurality of pendant pyrrolidone, antioxidant radical, polyester oligomer, and N-alkyl amide groups.

Biodegradable, antioxidant, thermally responsive injectable hydrogel and uses therefor

An injectable hydrogel composition that forms a porous gel rapidly after injection fro tissue engineering. The composition comprises a biodegradable, biocompatible, gelling polymer, that is optionally reverse-gelling; an Extra cellular matrix (ECM) material and a biocompatible porogen. Methods of making and using the composition are provided. A kit also is provided comprising the ingredients for making the hydrogel.

Biodegradable, porous, thermally responsive injectable hydrogel as soft tissue defect filler

Provided are novel biocompatible copolymers, compositions comprising the copolymers, and methods of using the copolymers. The copolymers are non-toxic and typically have an LCST below 37&#xb0; C. Compositions comprising the copolymers can be used for wound treatment, as a cellular growth matrix or niche and for injection into cardiac tissue to repair and mechanically support damaged tissue. The copolymers comprise numerous ester linkages so that the copolymers are erodeable in situ. Degradation products of the copolymers are soluble and non-toxic. The copolymers can be amine-reactive so that they can conjugate with proteins, such as collagen. Active ingredients, such as drugs, can be incorporated into compositions comprising the copolymers.

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Pittsburgh, PA, United States of America

Yang Zhu