Compositions containing purified collagen biomaterial derived from tissues, for example, insoluble amnion, soluble amnion, soluble chorion of the human placenta, are provided. The collagen compositions can be used to promote wound healing, promote tissue regeneration, prevent or reduce scarring, reduce local inflammation, minimize tissue rejection, promote graft integration. Methods for using the collagen composition as a biomaterial implant for dermal filling, skin grafting, and hair transplantation are also provided.

The present invention relates to a cryopreserved in vitro cell culture comprising human pancreatic progenitor cells that co-express pancreatic-duodenal homeobox factor-1 (PDX1) and NK6 homeobox 1 (NKX6.1) and are chromogranin negative. The present invention also relates to a method for cryopreserving an in vitro population of human pancreatic progenitor cells that co-express PDX1 and NKX6.1 and are chromogranin negative.

The present invention discloses a braided silk scaffold with adjustable mechanical and degradation properties, and a preparation method and use thereof, belonging to the field of three-dimensional scaffold materials for tendon/ligament repair. The preparation method includes braiding at least one silk strand to form a silk core; placing 1-6 bundles of silk cores in a braiding machine, and braiding at least one layer of silk cladding on the surface of the silk cores to form a silk base frame; removing sericin from the silk base frame; soaking the silk base frame in a collagen solution with a concentration of 3-20 mg/ml, and cross-linking the silk base frame in a vacuum thermal cross-linking machine to obtain the silk scaffold. The braided silk scaffold with adjustable mechanical and degradation properties according to the present invention has good mechanical properties and biocompatibility.

A scaffold comprising electrospun decellularized ECM of an organ, wherein the decellularized ECM has a similar protein composition to native ECM of the organ. Methods of generating same are also disclosed as well as uses of same.

The present disclosure provides improved biomaterials extracted from fibrous meniscal cartilage (FMC). The materials are at least partially decellularized and enzyme treated to remove at least a portion of the elastin and blood vessels found in FMC. Such biomaterials can be employed as tissue scaffolds, such as in transplant procedures.

A microcapsule which is used in tissue regeneration, which may be specifically directed to the damaged tissues, and which forms an extracellular matrix-like structure at a certain point and thus allows cell proliferation.

The invention relates to a fully disposable system for casting, polymerizing and compressing a hydrogel. The invention further relates to a method for producing a scaffold for the generation of artificial tissue products using said disposable system.

A tissue construct is provided that comprises a pancreas derived microvessel fragment and a pancreatic islet cell. The pancreas derived microvessel fragment and the pancreatic islet cell can be incorporated into a biocompatible medium. Tissue constructs can be comprised of other cells, such as stem cells, combined with the pancreas derived microvascular fragment. Methods for isolating microvessel fragments from a pancreas are also provided and include enzymatic digestion of pancreatic tissue and separation of microvessel fragments from endocrine and exocrine tissue. Methods for treating diabetes are further provided and include administration of the tissue constructs.

Disclosed are devices and methods for transplanting cells, such as pancreatic endoderm cells, into a host. The devices include a non-woven fabric external to a cell-excluding membrane, and the non-woven fabric and/or cell-excluding membrane can be perforated. Treatment of the host with immunosuppressive reagents, required to inhibit allograft rejection due to perforations in the cell delivery device, does not compromise maturation or function of transplanted pancreatic endoderm cells.

A scaffold-free nerve conduit and a method of making the scaffold-free nerve conduit are provided. A nerve-repair method using the scaffold-free nerve conduit also is provided.