| abstract |
The present invention relates to a porous sheet having a double crosslinked structure comprising a protein-based natural polymer substance having biocompatibility, a natural enzyme crosslinking agent, a polysaccharide-based natural polymer-derived substance and a divalent metal salt crosslinking agent, and a method for producing the same. The porous sheet having a double-crosslinked structure produced according to the present invention has excellent biocompatibility and is excellent in adhesion with the skin, and has a drastically improved water content and moisture retention time. Thus, it is possible to provide a drug delivery carrier Can also be applied. |