A method of lamellar corneal graft implantation is disclosed herein. In one or more embodiments, the method includes the steps of: (i) modifying a genetic component of a lamellar cornea or other tissue of an animal so that the lamellar cornea or other tissue of the animal can be used for human transplantation; (ii) decellularizing the lamellar cornea or other tissue ex vivo using chemical means; (iii) modifying a shape of the lamellar cornea or other tissue before or after transplantation; and (iv) applying a photosensitizer and ultraviolet radiation to the lamellar cornea or other tissue so as to crosslink collagen and intercellular proteins of the lamellar cornea or other tissue, kill the cells exposed to the photosensitizer, and eliminate an immune response by a host to the implanted lamellar cornea or the tissue.

Disclosed are a biological tissue matrix material, a preparation method therefor and the use thereof in an otological repair material. The biological tissue matrix material comprises an extracellular matrix. The extracellular matrix comprises a collagen fiber, a growth factor and fibronectin. The biological tissue matrix material has a low amount of DNA residue, a low immunogenicity, a high anti-infection ability, and a strong repair capability.

Provided herein are scaffold biomaterials including a decellularized plant or fungal tissue from which cellular materials and nucleic acids of the tissue are removed, the decellularized plant or fungal tissue having a 3-dimensional porous structure; wherein the decellularized plant or fungal tissue may optionally be at least partially coated or mineralized, wherein the scaffold biomaterial may optionally further include a protein-based hydrogel and/or a polysaccharide-based hydrogel, or both. Also provided herein are methods and uses of such scaffold biomaterials, including methods of manufacture as well as methods and uses for bone tissue engineering, for example.

An object is to develop technology for viral inactivation. As means for resolution, viruses are inactivated by irradiating various articles with microwaves.

The present invention, in which RPE cells are suspended in a medium pharmaceutically acceptable as an ocular irrigating/washing solution and containing a poloxamer, achieves improvement of the post-thawing survival rate of cryopreserved RPE cells, improvement of the photoreceptor cell protection effect by RPE cell transplanted immediately after thawing, and prevention of loss of RPE cells in various steps from thawing to transplantation.

The invention provides an isolated dehydrated corneal tissue, comprising a full thickness corneal stroma, and substantially all, or all, of the Bowman's membrane, wherein the stroma contains cellular material. Also provided is a method to product the tissue and uses of the tissue.

A method for producing a composite demineralized bone matrix composition using a one-step process is described. The composite demineralized bone matrix composition is produced from the biologically-derived bone. In addition, the composite demineralized bone matrix composition contains bone minerals according to the original composition proportion in the bone and may provide a bone mineral content condition that is closest to that in an environment in which in vivo bone formation occurs. In addition, the composition contains a bone morphogenetic protein (BMP-2), and thus enables a stable and excellent bone formation effect to be derived.

A method for preparing placenta membrane tissue grafts for medical use, includes obtaining a placenta from a subject, cleaning the placenta, separating the chorion tissue from the amniotic membrane, mounting a selected layer of either the chorion tissue or the amniotic membrane onto a drying fixture, dehydrating the selected layer on the drying fixture, and cutting the selected layer into a plurality of tissue grafts. Preferably, the drying fixture includes grooves or raised edges that define the outer contours of each desired tissue graft, after they are cut, and further includes raised or indented logos that emboss the middle area of the tissue grafts during dehydration and that enables an end user to distinguish the top from the bottom side of the graft. The grafts are comprised of single layers of amnion or chorion, multiple layers of amnion or chorion, or multiple layers of a combination of amnion and chorion.

A method of preparing biological tissue for use as a component of an implant, in particular as part of a vascular implant, more particularly as part of a heart valve prosthesis, which can be implanted by a catheter. The biological tissue is decellularized using a detergent, which includes surfactin and deoxycholic acid (DCA).

The present invention relates to methods for producing biphasic calcium phosphate materials using chemical processing methods including exposure to peroxides. The resulting materials exhibit an osteoinductive needle-like surface morphology and are useful as artificial bone grafts.