A platform for creating engineered tissues includes a vascular tube that defines a vascular diameter and is configured to receive vascular system seed cells, a non vascular tube that defines a non-vascular tube diameter and is configured to receive organ system seed cells, and a barrier formed between the vascular tube and the non vascular tube.

Methods of producing and methods of treatment using a nipple areolar complex extracellular matrix. A method for processing tissue comprises harvesting a human nipple areolar complex tissue, treating the tissue with a stabilizing medium, wherein the medium stabilizes the tissue during transport, decellularizing the tissue, and sterilizing the tissue to form a human nipple areolar complex extracellular matrix scaffold (ECMS). A method of treating an individual with a need for a nipple reconstruction comprises forming an ECMS and applying the ECMS to the individual for nipple areolar regeneration.

The present invention relates to a method of filling different two-kinds of multiple inks into an ink extruding member for a three-dimensional print and a method of three-dimensional printing using the filled ink, and relates to a three-dimensional printing method using multiple inks comprising a step of applying pressure to the retained multiple inks and extruding it into a single extruding port of the extruding part to prepare an ink extruded product and printing the ink extruded product.

The present invention relates to a method of filling different two-kinds of multiple inks into an ink extruding member for a three-dimensional print and a method of three-dimensional printing using the filled ink, and relates to a three-dimensional printing method using multiple inks comprising a step of applying pressure to the retained multiple inks and extruding it into a single extruding port of the extruding part to prepare an ink extruded product and printing the ink extruded product.

Provided is a dental pretreatment material for dental tissue regeneration by use of dental pulp stem cells, particularly a dental pretreatment material effectively enabling dental tissue regeneration even by use of dental pulp stem cells of middle-aged or older individuals. The dental pretreatment material is characterized by comprising a serine protease, specifically trypsin. The dental pretreatment material comprising trypsin is used as an injection into a root canal before a root canal filling material comprising dental pulp stem cells and an extracellular matrix is inserted into the root canal as an attempt to regenerate a dental pulp and a dentin. The root canal filling material includes an ALK5 inhibitor, a CCR3 antagonist, or a CCL11 neutralizing antibody.

A porous hardened material is provided for various medical applications, including strengthening, supporting, moving, reinforcing, separating, isolating, and/or bulking biological substrates. The hardened material is formed from a liquid composition including a fluorinated copolymer and a biocompatible solvent system. The fluorinated copolymer includes a tetrafluoroethylene (TFE) moiety and a vinyl moiety, wherein the vinyl moiety comprises at least one functional group selected from acetate, alcohol, amine, and amide.

Artificial meniscal scaffolds characterized by a composite of circumferential polymer fiber network and orthogonal polymer fiber network embedded in an arcuate bioresorbable matrix comprised of collagen and hyaluronic acid. The orthogonal polymer fiber network prevents separation of the circumferential polymer fiber networks. The polymer fiber networks convert axial compressive forces on the scaffolds to tensile loads on the circumferential polymer fibers. The composite scaffold can be anchored to bone by novel anchoring components that protect the polymer fibers and ensure immediate securement of the artificial meniscal scaffold to bone.

In various aspects and embodiments, the present invention provides methods for maintaining motor neuron health in the spinal cord and pro-regenerative capacity of a proximal nerve segment subsequent to a nerve injury in a subject in need thereof, the methods comprising transplanting a stretch-grown tissue engineered nerve graft (TENG) into a proximal site contacting the proximal nerve segment.

Provided is a 3D human liver organ model constructing method, comprising: preparing human primary liver cells, or mixed cells of same and liver non-parenchymal cells, or human liver cancer cell lines into a single cell suspension, and mixing the single cell suspension with a matrix material to obtain a mixed cell suspension; inoculating the mixed cell suspension into cultivation micropores of a 3D organ-on-a-chip, and carrying out cultivation at 37° C. to obtain a gelled 3D organ-on-a-chip; adding a culture medium into liquid storage holes of the organ-on-a-chip, and carrying out cultivation to obtain a 3D human liver organ model. Compared with other 2D human liver organ models, the constructed 3D human liver organ model has significantly enhanced response sensitivity to hepatotoxic drugs, and shows stronger hepatotoxic damage effect for reported hepatotoxic drugs. Compared with an animal model, the 3D human liver organ model can effectively eliminate the screening difference caused by species difference.

An intervertebral fusion device includes a structural ceramic body. The structural ceramic body has a bottom surface, a top surface, a peripheral surface connected between the bottom surface and the top surface, and at least one pore channel penetrating the bottom surface and the top surface. The inner surface of the pore channel is either a convex curved surface or a funnel-shaped surface. For the pore channel having the convex curved surface, the pore diameter of the pore channel gradually expands from the center of the pore channel to the top surface and the bottom surface. The pore diameter can also gradually expand from the bottom surface to the top surface. The peripheral surface of the structural ceramic body is wavy or zigzag.