The present disclosure is directed at a process to form bone grafting material. One may provide a porous collagen scaffold and insert the scaffold into a perfusion chamber of a perfusion flow system. This may then be followed by continuously providing a mineralization perfusion fluid flow through the scaffold at a flow rate to provide dynamic intrafibrillar mineralization of the scaffold and form a collagen/hydroxyapatite composite scaffold. One may optionally provide the scaffold with bone tissue forming cells and then deliver a perfusion fluid including oxygen and one or more nutrients through the collagen/hydroxyapatite composite scaffold and to the bone tissue forming cells at a flow rate such that the bone tissue forming cells remodel the collagen/hydroxyapatite composite scaffold and form a bone tissue extracellular matrix. The bone tissue extracellular matrix may then be decellularized to form an acellular bone repair scaffold.

The present invention provides, inter alia, compositions including at least one pliable layer comprising a plurality of silk fibroin nanofibrils, and at least one rigid layer comprising a plurality of mineral crystals, wherein each rigid layer is associated with at least one pliable layer, as well as methods for the production and use thereof.

The present invention provides, inter alia, compositions including at least one pliable layer comprising a plurality of silk fibroin nanofibrils, and at least one rigid layer comprising a plurality of mineral crystals, wherein each rigid layer is associated with at least one pliable layer, as well as methods for the production and use thereof.

Osteoconductive synthetic bone grafts are provided in which porous ceramic granules are embedded in a biocompatible matrix material. The grafts, which may also include one or more of a coating, a reinforcing bio-absorbable mesh, and an osteoinductive protein or peptide, are generally porous and may incorporate fenestrations.

Osteoconductive synthetic bone grafts are provided in which porous ceramic granules are embedded in a biocompatible matrix material. The grafts, which may also include one or more of a coating, a reinforcing bio-absorbable mesh, and an osteoinductive protein or peptide, are generally porous and may incorporate fenestrations.

The present disclosure relates to a shape memory polymer material containing at least one two dimensional region having a first amount of stored stress in a first direction and a second amount of stored stress higher than the first amount of stored stress in a second direction, wherein the two dimensional region is capable of changing shape in only one of the first or second directions.

The present disclosure relates to a shape memory polymer material containing at least one two dimensional region having a first amount of stored stress in a first direction and a second amount of stored stress higher than the first amount of stored stress in a second direction, wherein the two dimensional region is capable of changing shape in only one of the first or second directions.

A biocompatible structure includes one or more base structures for regeneration of different tissues. Each base structure includes alternately stacked polymer layers and spacer layers. The polymer layer includes a polymer and tissue forming nanoparticles. The polymer includes polyurethane. The tissue forming nanoparticles includes hydroxypatites (HAP) nanoparticles, polymeric nanoparticles, or nanofibers. The spacer layer includes bone particles, polymeric nanoparticles, or nanofibers. The weight percentage of tissue forming nanoparticles to the polymer in the polymer layer in one base structure is different from that in the other base structures. A method of producing the biocompatible structure includes forming multiple base structures stacked together, coating the stacked multiple base structures, and plasma treating the coated structure.

A biocompatible structure includes one or more base structures for regeneration of different tissues. Each base structure includes alternately stacked polymer layers and spacer layers. The polymer layer includes a polymer and tissue forming nanoparticles. The polymer includes polyurethane. The tissue forming nanoparticles includes hydroxypatites (HAP) nanoparticles, polymeric nanoparticles, or nanofibers. The spacer layer includes bone particles, polymeric nanoparticles, or nanofibers. The weight percentage of tissue forming nanoparticles to the polymer in the polymer layer in one base structure is different from that in the other base structures. A method of producing the biocompatible structure includes forming multiple base structures stacked together, coating the stacked multiple base structures, and plasma treating the coated structure.

A biocompatible structure includes one or more base structures for regeneration of different tissues. Each base structure includes alternately stacked polymer layers and spacer layers. The polymer layer includes a polymer and tissue forming nanoparticles. The polymer includes polyurethane. The tissue forming nanoparticles includes hydroxypatites (HAP) nanoparticles, polymeric nanoparticles, or nanofibers. The spacer layer includes bone particles, polymeric nanoparticles, or nanofibers. The weight percentage of tissue forming nanoparticles to the polymer in the polymer layer in one base structure is different from that in the other base structures. A method of producing the biocompatible structure includes forming multiple base structures stacked together, coating the stacked multiple base structures, and plasma treating the coated structure.