The University of Texas System

University of Florida Research Foundation Inc

Massachusetts Institute of Technology

Children's Medical Center Corporation

Christine E Schmidt

Sarah Mayes

Scott Zawko

John George Hardy

Carlos Rinaldi

Terry Hudson

Christopher Lacko

Andrew Garcia

Robert Samuel Langer

Joseph P Vacanti

William Richard Eisenstadt

Venkatram R Shastri

Jack Judy

Byul Hur

Kevin Otto

Cary A Kuliasha

Zin Z Khaing

Tran Ngo

Benjamin Scott Spearman

Sahba Mobini

Rebecca Ann Wachs

Zin Khaing

Robert Chase Cornelison

Tyrell J Rivers

Scott A Zawko

Sarah M Mayes

A biocompatible membrane comprised of alginate and hyaluronate. The membrane may be used to prevent unwanted scarring after surgery. The tissue adherence and the rate of bioresorption of the membrane may be modified through an external stimulus comprising a sequestering agent and a viscosity modifier.

Hydrogel membrane for adhesion prevention

The present disclosure provides magnetically templated tissue scaffolds, methods of making the magnetically templated tissue scaffolds, and various methods of employing the scaffolds for tissue growth and repair in vitro and in vivo, including peripheral nerve repair.

Magnetically templated tissue engineering scaffolds and methods of making and using the magnetically templated tissue engineering scaffolds

The disclosure provides 3D bioprinted test beds and methods of making the 3D bioprinted teste beds, methods of using the 3D bioprinted test beds for testing and/or comparatively testing two or more test compounds on cell growth and/or behavior, as well as biocompatible methacrylated hyaluronic acid-based bioinks for printing the 3D test beds and/or other articles. The 3D test beds and bioinks include a hydrogel material/precursor and can include extracellular matrix components.

Bioprinted, 3D scaffolds for cellular test beds and methods of use thereof

Disclosed herein is a method of treating a subject for a disease, disorder, or condition that involves administering to the subject a composition comprising a secretome derived from electrically stimulated cells. Also disclosed herein is an enhanced secretome produced by a process comprising collecting cells from a subject, culturing the cells in a serum free medium for at least 1 day while stimulating the cells with electric pulses, and collecting the secretome produced by the electrically-stimulated cells. Also disclosed herein is a pharmaceutical composition comprising an enhanced secretome derived from electrically stimulated cells contained within a biocompatible hydrogel in an amount effective to treat a disease or disorder.

Electrical stimulation of cells to induce enhanced secretome for therapeutic applications

The present invention includes a hydrogel and a method of making a porous hydrogel by preparing an aqueous mixture of an uncrosslinked polymer and a crystallizable molecule; casting the mixture into a vessel; allowing the cast mixture to dry to form an amorphous hydrogel film; seeding the cast mixture with a seed crystal of the crystallizable molecule; growing the crystallizable molecule into a crystal structure within the uncrosslinked polymer; crosslinking the polymer around the crystal structure under conditions in which the crystal structure within the crosslinked polymer is maintained; and dissolving the crystals within the crosslinked polymer to form the porous hydrogel.

Dendritic macroporous hydrogels prepared by crystal templating

The application of a highly controlled, micron-sized, branched, porous architecture to enhance the handling properties and degradation rate of hydrogels is described in the instant invention. A previously described pattern created through one-step nucleated crystallization in a hydrogel film creates tunable mechanical properties and/or chemical stability for use in tissue engineering applications. The bulk mechanical properties and the degradation rate of the material can be tuned easily by the addition or subtraction of crystalline structure or by the addition and subtraction of backfill material, making this useful for a variety of applications. Relevant mechanical properties that can be tuned through the application of this unique porosity are moduli, elasticity, tensile strength, and compression strength. The method of the present invention can be applied to biopolymers and natural materials as well as synthetic materials.

One-step processing of hydrogels for mechanically robust and chemically desired features

A non-synthetic, hydrophilic, biodegradable, biocompatible polysaccharide based non-toxic anti-adhesion hydrogel barrier is disclosed herein. The barrier of the present invention is formed by constructing a unique interpenetrating, crosslinked network with a unique porosity. Furthermore, the barrier of the present invention is comprised of tunable biopolymers for controllable mechanical robustness and degradation. The barrier of the present invention effectively reduces unwanted adhesions using non-synthetic components.

Anti-adhesive barrier membrane using alginate and hyaluronic acid for biomedical applications

A polymerizable unit that yields an electrochemically responsive polymer (advantageously pyrrole) is anchored by polymerization within a polycaprolactone matrix to form an electroactive scaffold upon which cells can be cultured and in which the micro- and nano-topological features of the polycaprolactone matrix are preserved. A scaffold manufactured in accordance with the preferred embodiment can support Schwann cells, which produce nerve growth factor when electrically stimulated. Nerve growth factor has been demonstrated to promote the regeneration of nerve tissue. By implanting the scaffold on which Schwann cells have been cultured into damaged nerve tissue and applying a voltage across the scaffold, nerve growth factor is produced, thereby promoting repair of the damaged nerve tissue.

Electroactive polymeric scaffolds and method for delivering nerve growth factor to nerve tissue

Tissue-engineered electronic peripheral nerve interface (TEENI) devices, methods of using TEENI devices, and systems using TEENI devices are provided. In particular, TEENI devices include a support member having a length, at least one thread set comprising a plurality thread set arms having a plurality of electronic leads running through the thread set arms and being fully encapsulated within the support member, and a plurality of electrodes fixed to the plurality of thread set arms.

Tissue-engineered electronic peripheral nerve interface

Wireless and non-wireless drug delivery integrated circuits, systems, and methods of delivering therapeutic pharmaceutical compounds are provided. The system can include a control module, a wireless drug delivery integrated circuit, a first electrode and a second electrode that are both attached to the wireless drug delivery integrated circuit, an electroactive polymer, and a pharmaceutical compound. The electroactive polymer and the pharmaceutical compound can be formed as films on one of the electrodes and, when placed in a solution, a voltage potential can be applied across the electrodes causing the pharmaceutical compound to be released into the solution.

Drug delivery integrated circuit (IC) and system

Growing community of inventors

Gainesville, FL, United States of America

Christine E Schmidt