Adult autologous stem cells cultured on a porous, three-dimensional tissue scaffold-implant for bone regeneration by the use of a hyaluronan and/or dexamethasone to accelerate bone healing alone or in combination with recombinant growth factors or transfected osteogenic genes. The scaffold-implant may be machined into a custom-shaped three-dimensional cell culture system for support of cell growth, reservoir for peptides, recombinant growth factors, cytokines and antineoplastic drugs in the presence of a hyaluronan and/or dexamethasone alone or in combination with growth factors or transfected osteogenic genes, to be assembled ex vivo in a tissue incubator for implantation into bone tissue.

Provided herein are materials for the promotion of tissue regeneration, and methods of promoting tissue regeneration and wound healing therewith. In particular, materials displaying laminin-derived peptide sequences that facilitate cell migration into the material, and methods of use thereof, are provided.

Disclosed herein is a composition comprising stimulated biological material derived from an interface compartment, wherein the composition is capable of augmenting the generation or healing of a native tissue when administered to a subject in need thereof.

Mono- and multi-layered implants include at least one porous layer made from a freeze dried aqueous solution containing chitosan, the solution having a pH of less than about 5.

A method for preparing a chitosan complex film comprises: (1) reacting polyvinyl alcohol-124 with butanedioic anhydride to obtain a modified polyvinyl alcohol; (2) formulating the modified polyvinyl alcohol-124 into a 0.4 wt % aqueous solution, then adding the aqueous solution containing 0.4 wt % of modified polyvinyl alcohol-124 dropwise into an acetic acid solution at a concentration of 0.4 wt % chitosan to obtain a mixed solution; (3) adjusting the pH value of the mixed solution with a 0.01 wt % NaOH solution to pH 5.5, and removing surface bubbles after standing for one hour to obtain a casting solution; (4) pouring the casting solution into a culture dish, placing the culture dish into an oven at 60 C. and drying to a constant weight to obtain the chitosan complex film. The materials used in the method are inexpensive, and the reaction is not complicated, so the cost of the product is not high.

A transplant product derived from human umbilical cord has a collagenous tissue membrane derived from an umbilical cord, configured as a soft tissue barrier or wound covering or other internal or external wound healing attachment. The structural, chemical and biochemical properties are retained, the collagenous tissue membrane is cleaned removing the veins, arteries and Wharton's jelly without exposure to harsh chemicals. The collagenous tissue membrane is soaked in normal saline solution under mild agitation for a predetermined time to structurally increase tear resistance of the membrane. The collagenous tissue membrane is free of meconium. The collagenous tissue membrane has a general transparent or translucent appearance of a clear or slightly pink color. In one embodiment, the transplant product has one or more suture entry sites to facilitate suturing the product to tissue.

An advanced manufactured interpenetrating polymer network (AM-IPN) comprising: a primary polymer network; a secondary polymer network, wherein the secondary polymer network is bonded to the primary polymer network via one or more crosslinks, wherein one or more of the primary polymer network, the secondary polymer network and the one or more crosslinks are printed using a synthetic bioink is disclosed. Methods of making and using are also disclosed.

Disclosed herein is a composition comprising stimulated biological material derived from an interface compartment, wherein the composition is capable of augmenting the generation or healing of a native tissue when administered to a subject in need thereof.

Compositions and methods for treating infectious diseases produced by biofilms are disclosed. More specifically, the present disclosure refers to a pharmaceutical composition which may be used for treating biofilm infections, specifically, biofilms formed by bacteria such as Pseudomonas, E. coli, Klebsiella, and other human pathogens. Pharmaceutical compositions may include a nutrient dispersion that can include sodium citrate, succinic acid, xylitol, glutamic acid, and ethylenediaminetetraacetic acid (EDTA), among others. Additionally disclosed pharmaceutical composition may include active pharmaceutical ingredients (API) such as antibiotics. Subsequently, the antibiotics agent may be ciprofloxacin, amikacin, tobramycin, colistin methate, or polymixin, among others. Pharmaceutical compositions disclosed may employ chemotactic agents in order to disrupt biofilms and therefore enhance the antibiotic response. Pharmaceutical compositions disclosed may include suitable vehicles which may depend on the dosage form.

A device of in-situ 4D bioprinting organ includes an implantable component, a connectable component and an external component. The implantable component includes a scaffold for shaping an organ defect, a microfluidic system for printing bio ink, and an intelligent monitoring unit. The external component includes a filling and draining unit, a power, a control unit for providing support to the implantable component. The implantable component can be placed in a body or installed on a surface of the body and connected to the organ defect. The bio ink can be accurately layered and segmented according to an algorithm onto a wound surface of the organ defect, thereby implementing the in-situ bioprinting organ.