Abstract: Injectable fibrous hydrogel are provided. The injectable fibrous hydrogels include a guest macromer of a hyaluronic acid (HA) backbone and host macromer of a HA backbone, the guest macromer is a HA electrospun hydrogel nanofiber functionalized with adamantane (Ad), and the host macromer is a HA electrospun hydrogel nanofiber functionalized with ?-cyclodextrin (CD). Injectable formulations that include the fibrous hydrogels are also provided, as are methods of making and using the same.

Abstract: Disclosed are phototunable hydrogels, compositions that include the same, and methods for using the same for treating wounds and/or injuries, for inhibiting formation of scar tissue at wound sites, for inhibiting fibrosis in subjects in need thereof, for inhibiting lung fibrosis and/or scarring in subject in need thereof, for inhibiting formation of myofibroblasts from fibroblasts, and for inhibiting expression of ?-smooth muscle actin (?-SMA) and/or type I collagen in fibroblasts.

Abstract: A multicompartment conductive collagen scaffold composite, comprising a scaffold comprising collagen and an electrically conductive material, optionally wherein the electrically conductive material comprises electrically conductive particles, and further comprising longitudinally aligned pores, and methods of making and using the same.

Abstract: The invention provides methods and compositions for making and using collagen-glycosaminoglycan three-dimensional scaffolds immobilized with biomolecules that are spatially and temporally patterned. The method comprises adding benzophenone to a collagen-glycosaminoglycan three dimensional scaffold in the dark; adding one or more biomolecules to one or more areas of the collagen-glycosaminoglycan three-dimensional scaffold (which can be done optionally in the dark or in the light); and exposing the collagen-2glycosaminoglycan three-dimensional scaffold to light at a wavelength of about 350 to about 365 nm.

Abstract: The invention provides methods and compositions for making and using collagen-glycosaminoglycan three-dimensional scaffolds immobilized with biomolecules that are spatially and temporally patterned. The method comprises adding benzophenone to a collagen-glycosaminoglycan three dimensional scaffold in the dark; adding one or more biomolecules to one or more areas of the collagen-glycosaminoglycan three-dimensional scaffold (which can be done optionally in the dark or in the light); and exposing the collagen-2glycosaminoglycan three-dimensional scaffold to light at a wavelength of about 350 to about 365 nm.

Abstract: Collagen-glycosaminoglycan membrane shell scaffold core composites for connective tissue engineering that avoids aspects of the typical tradeoff between mechanical properties (i.e. modulus, failure strength) and bioactivity (i.e., permeability and porosity) for porous tissue engineering scaffolds. The relative density of the collagen glycosaminoglycan scaffold core can be about 0.5 to about 0.95 while the membrane shell can be about 0.001 to 25 about 0.2. The core-shell composite can be tubular and the composite can have a diameter of about 1 mm to about 20 mm. The collagen glycosaminoglycan membrane shell can be perforated with about 25 to about 1000 micrometers openings or alternatively can be embossed with any range of pattern features from about 25 to about 1000 micrometers in size. The porous collagen glycosaminoglycan scaffold core can be populated with cells such as adult or embryonic stem cells, tenocytes, osteoblasts, nerve cells, cardiac cells, myocytes, fibroblasts or combinations thereof.