CPC A61L 27/20 (2013.01) [A61L 27/12 (2013.01); A61L 27/222 (2013.01); A61L 27/26 (2013.01); A61L 27/52 (2013.01); B29C 64/106 (2017.08); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); A61L 2430/34 (2013.01)] | 10 Claims |
1. A chitosan hydrogel composition comprising chitosan, glycerol, and a phosphate group, wherein the chitosan comprises a first chitosan and a second chitosan crosslinked with each other,
wherein the glycerol and phosphate group are used as crosslinking agents,
wherein the glycerol and the phosphate group are comprised at a molar ratio of 1:1 to 1:4,
wherein gelation of the composition occurs at 15° C. to 60° C., and
wherein the composition forms a laminated structure when used as an ink for 3D printing.
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