A thiol-modified hyaluronan, wherein the thiol-modified hyaluronan comprises a plurality of modification groups with a thiol-group in the hyaluronan side-chains, wherein the modification group comprises an amino acid residue with basic side chain and a conjugated terminal naturally occurring amino-thiol as well as a sterile hydrogel composition comprising a crosslinked polymer, wherein the crosslinked polymer is an oxidation product of the thiol-modified hyaluronan and uses of the composition.

The present invention concerns a method to prepare a filler with a hyaluronic acid, which has improved properties of chemical-physical stability over time and optimal viscosity for cutaneous injection. In particular the method comprises a first step in which the hyaluronic acid is crosslinked, and a subsequent step for the neutralization and hydration of the crosslinked hyaluronic acid.

The present invention concerns a method to prepare a filler with a hyaluronic acid, which has improved properties of chemical-physical stability over time and optimal viscosity for cutaneous injection. In particular the method comprises a first step in which the hyaluronic acid is crosslinked, and a subsequent step for the neutralization and hydration of the crosslinked hyaluronic acid.

The present invention concerns a method to prepare a filler with a hyaluronic acid, which has improved properties of chemical-physical stability over time and optimal viscosity for cutaneous injection. In particular the method comprises a first step in which the hyaluronic acid is crosslinked, and a subsequent step for the neutralization and hydration of the crosslinked hyaluronic acid.

Provided are a novel crosslinked alginic acid, a crosslinked alginic acid structure, etc., by performing a crosslinking reaction using alginic acid derivatives represented by formula (I) and formula (II). As a result, a novel crosslinked alginic acid, crosslinked alginic acid structure, etc., are provided.

##STR00001##

Provided are a novel crosslinked alginic acid, a crosslinked alginic acid structure, etc., by performing a crosslinking reaction using alginic acid derivatives represented by formula (I) and formula (II). As a result, a novel crosslinked alginic acid, crosslinked alginic acid structure, etc., are provided.

##STR00001##

Provided are a novel crosslinked alginic acid, a crosslinked alginic acid structure, etc., by performing a crosslinking reaction using alginic acid derivatives represented by formula (I) and formula (II). As a result, a novel crosslinked alginic acid, crosslinked alginic acid structure, etc., are provided.

##STR00001##

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.

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.

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.