Abstract: Aspects of the disclosure include a fabrication platform for supporting a bioprinted fiber structures during printing, patterning, and/or processing, comprising a frame with a plurality of posts for securing a cross-linkable fiber during printing thereof, and where a continuous length of the cross-linkable fiber is printed around a plurality of posts during the 3D bioprinting process. The fabrication platform enables the cross-linkable fiber to be suspended during one or more of printing, patterning, and/or processing. In this way, the bioprinted fiber structure comprises a uniform outer surface, and can be easily modified and/or further processed after printing and patterning are completed.

Abstract: Provided herein are synthetic living tissue structures comprising multiple layers of fibers deposited in solidified form from a 3D bioprinter, together with kits and methods of use related thereto. The fibers comprise a plurality of mammalian cells dispensed within a solidified biocompatible matrix. The structural integrity of the fiber is maintained upon and after deposition without any additional crosslinking. The fiber is continuously bioprinted through at least two layers of the structure. In one aspect, synthetic muscle tissue structures exhibit a readily assayable contractile functionality.

Abstract: Aspects of the disclosure include an implantable composition/medical device encapsulating insulin-producing cells for use in the treatment and management of diabetes, generally comprising a multilayer lattice structure fabricated from a continuously bioprinted cell-laden core/shell fiber, the lattice structure having a defined infill density and at least coating applied to the lattice post-printing, and preferably at least one conformal coating. In this way, multilayer lattice structures are provided with improved stability, retrievability, and functionality.

Abstract: A print head, system and method for producing hollow fiber structures, for example three-dimensional biological structures comprising living cells, includes a dispensing channel, a core channel converging with the proximal end of the dispensing channel, a first shell channel converging with the core channel and the dispensing channel at a focusing intersection or chamber, and a sheath flow channel converging with the dispensing channel at a sheath flow intersection or chamber located between the focusing intersection or chamber and the distal end of the dispensing channel. The diameter of the dispensing channel increases from a first diameter to a second diameter at the sheath flow intersection or chamber, and the core channel has a third diameter less than the first and second diameters. The sheath flow channel includes sheath flow sub-channels and the focusing chamber has a conical frustum shape.

Abstract: Aspects of the invention include systems and methods for producing selectively permeable cell laden solid core fiber structures, and for producing three-dimensional (3D) biological structures for digital files. In embodiments, the printed fibers comprise living cells embedded in at least one annulus layer or the printed fibers comprise a solid core of at least one biological material. The tissue fiber can be used in tissue engineering as synthetic tissue structures.

Abstract: Provided herein are meniscus implant compositions, as well as methods for making and using the same. The subject meniscus implants find us in repairing and/or replacing damaged or diseased meniscal tissue in a mammalian subject.

Abstract: A print head, system and method for producing hollow fiber structures, for example three-dimensional biological structures comprising living cells, includes a dispensing channel, a core channel converging with the proximal end of the dispensing channel, a first shell channel converging with the core channel and the dispensing channel at a focusing intersection or chamber, and a sheath flow channel converging with the dispensing channel at a sheath flow intersection or chamber located between the focusing intersection or chamber and the distal end of the dispensing channel. The diameter of the dispensing channel increases from a first diameter to a second diameter at the sheath flow intersection or chamber, and the core channel has a third diameter less than the first and second diameters. The sheath flow channel includes sheath flow sub-channels and the focusing chamber has a conical frustum shape.

Abstract: Provided herein are meniscus implant compositions, as well as method for making and using the same. The subject meniscus implants find use in repairing and/or replacing damaged or diseased meniscal tissue in a mammalian subject.

Abstract: Provided herein are meniscus implant compositions, as well as methods for making and using the same. The subject meniscus implants find us in repairing and/or replacing damaged or diseased meniscal tissue in a mammalian subject.

Abstract: Provided herein are synthetic living tissue structures comprising multiple layers of fibers deposited in solidified form from a 3D bioprinter, together with kits and methods of use related thereto. The fibers comprise a plurality of mammalian cells dispensed within a solidified biocompatible matrix. The structural integrity of the fiber is maintained upon and after deposition without any additional crosslinking. The fiber is continuously bioprinted through at least two layers of the structure. In one aspect, synthetic muscle tissue structures exhibit a readily assayable contractile functionality.

Abstract: Provided herein are meniscus implant compositions, as well as method for making and using the same. The subject meniscus implants find use in repairing and/or replacing damaged or diseased meniscal tissue in a mammalian subject.

Abstract: Provided herein are synthetic living tissue structures comprising multiple layers of fibers deposited in solidified form from a 3D bioprinter, together with kits and methods of use related thereto. The fibers comprise a plurality of mammalian cells dispensed within a solidified biocompatible matrix. The structural integrity of the fiber is maintained upon and after deposition without any additional crosslinking. The fiber is continuously bioprinted through at least two layers of the structure. In one aspect, synthetic muscle tissue structures exhibit a readily assayable contractile functionality.

Abstract: A print head, system and method for producing hollow fiber structures, for example three-dimensional biological structures comprising living cells, includes a dispensing channel, a core channel converging with the proximal end of the dispensing channel, a first shell channel converging with the core channel and the dispensing channel at a focusing intersection or chamber, and a sheath flow channel converging with the dispensing channel at a sheath flow intersection or chamber located between the focusing intersection or chamber and the distal end of the dispensing channel. The diameter of the dispensing channel increases from a first diameter to a second diameter at the sheath flow intersection or chamber, and the core channel has a third diameter less than the first and second diameters. The sheath flow channel includes sheath flow sub-channels and the focusing chamber has a conical frustum shape.

Abstract: Provided herein are meniscus implant compositions, as well as method for making and using the same. The subject meniscus implants find use in repairing and/or replacing damaged or diseased meniscal tissue in a mammalian subject.

Abstract: Provided herein are meniscus implant compositions, as well as method for making and using the same. The subject meniscus implants find use in repairing and/or replacing damaged or diseased meniscal tissue in a mammalian subject.

Abstract: Provided herein are synthetic living tissue structures comprising multiple layers of fibers deposited in solidified form from a 3D bioprinter, together with kits and methods of use related thereto. The fibers comprise a plurality of mammalian cells dispensed within a solidified biocompatible matrix. The structural integrity of the fiber is maintained upon and after deposition without any additional crosslinking. The fiber is continuously bioprinted through at least two layers of the structure. In one aspect, synthetic muscle tissue structures exhibit a readily assayable contractile functionality.