Disclosed is a method of producing reconstructed human skin including forming a three-dimensional hydrogel scaffold matrix by gelling a matrix solution including a type I collagen solution, forming a coating layer by coating the three-dimensional hydrogel scaffold matrix with type IV collagen, and forming an epidermis by seeding epidermal keratinocytes onto the three-dimensional hydrogel scaffold matrix having the coating layer formed thereon and performing culture.

Systems and methods for identifying a cell suspension with therapeutic potential for skin regeneration and related compositions are disclosed herein. In some variations, a method may include receiving a cell suspension that comprises a population of viable cells and non-viable cells, then measuring a value indicative of at least one characteristic of the cell suspension, such as but not limited to one or more of total cell count, total cell viability, cell viability percentage, and median live cell diameter. A cell suspension composition having therapeutic potential may comprise a cell suspension met certain thresholds relating to total cell count, total viable cell count, cell viability percentage, and median live cell diameter.

An apparatus includes a housing having an aperture extending through a wall of the housing, a carbon dioxide delivery device coupled to the housing through the aperture, a non-biological skin substitute substrate, and a heater coupled to the substrate.

An apparatus includes a housing having an aperture extending through a wall of the housing, a carbon dioxide delivery device coupled to the housing through the aperture, a non-biological skin substitute substrate, and a heater coupled to the substrate.

3D native tissue-derived scaffolding materials are made in various formats, including but not limited to hydrogel, sponge, fibers, microspheres, and films, all of which function to better preserve natural extracellular matrix molecules and to recapitulate the natural tissue environment, thereby effectively guiding tissue regeneration. Tissue-derived scaffolds are prepared by incorporating a homogenized tissue-derived suspension into a polymeric solution of synthetic, natural, or hybrid polymers. Such tissue-derived scaffolds and scaffolding materials have a variety of utilities, including: the creation of 3D tissue models such as skin, bone, liver, pancreas, lung, and so on; facilitation of studies on cell-matrix interactions; and the fabrication of implantable scaffolding materials for guided tissue formation in vivo. The tissue-derived scaffolds and scaffolding materials also provide the opportunity to correlate the functions of extracellular matrix with tissue regeneration and cancer metastasis, for example.

3D native tissue-derived scaffolding materials are made in various formats, including but not limited to hydrogel, sponge, fibers, microspheres, and films, all of which function to better preserve natural extracellular matrix molecules and to recapitulate the natural tissue environment, thereby effectively guiding tissue regeneration. Tissue-derived scaffolds are prepared by incorporating a homogenized tissue-derived suspension into a polymeric solution of synthetic, natural, or hybrid polymers. Such tissue-derived scaffolds and scaffolding materials have a variety of utilities, including: the creation of 3D tissue models such as skin, bone, liver, pancreas, lung, and so on; facilitation of studies on cell-matrix interactions; and the fabrication of implantable scaffolding materials for guided tissue formation in vivo. The tissue-derived scaffolds and scaffolding materials also provide the opportunity to correlate the functions of extracellular matrix with tissue regeneration and cancer metastasis, for example.

Disclosed herein are embodiments of a non-woven hybrid-scale fiber matrix sheet which can be used to improve wound healing. The non-woven hybrid-scale fiber matrix sheet may be both microporous, due to the hybrid-scale fiber matrix , as well as macroporous through the addition of cuts or perforations in the hybrid-scale fiber matrix sheet. The micro and macroporous sheet can improve biological healing at a wound site.

Disclosed herein are embodiments of a non-woven hybrid-scale fiber matrix sheet which can be used to improve wound healing. The non-woven hybrid-scale fiber matrix sheet may be both microporous, due to the hybrid-scale fiber matrix , as well as macroporous through the addition of cuts or perforations in the hybrid-scale fiber matrix sheet. The micro and macroporous sheet can improve biological healing at a wound site.

The invention is directed to a biological bandage derived from fish skin (e.g. tilapia skin) that can be used with healing of wounds such as burn wounds. The edible property of the fish skin biological bandage according to various embodiments makes it suitable for both human and veterinary medicine.

The invention is directed to a biological bandage derived from fish skin (e.g. tilapia skin) that can be used with healing of wounds such as burn wounds. The edible property of the fish skin biological bandage according to various embodiments makes it suitable for both human and veterinary medicine.