230 Cell and Material Interface
hydrogels are soft and exible, and they help to regenerate epithelial tissue after a
third-degree burn, which destroy epidermis and all skin layers under the subcutane-
ous tissue destroying epithelial appendages, nerve endings, blood vessels, and all the
specialized cells of skin.
93–95
9.3.5 novEl polysaccHaridEs
Morelli and Chiellini functionalized and prepared hydrogels from ulvan, which is
extracted from green seaweeds like Ulva armoricana.
96
Ulvan is an anionic, water
soluble, sulfated, and semi-crystalline polysaccharide. It is mainly composed of
rhamnose, glucuronic acid, iduronic acid, xylose, and sulfate.
68,96
They functional-
ized ulvan with methacrylate groups using either methacrylic anhydride or gly ...