| abstract |
The present invention relates to chitosan derivatives of the general formula (1) exhibiting photoreactivity cured by ultraviolet irradiation, and biocompatible biotissue adhesives and substance fixatives comprising the same:n n n n Formula 1n n n n n n n n n Chitosan derivatives of the present invention can be secured when applied to the human body as there is little toxicity as a biocompatible biotissue adhesive. Chitosan derivatives of the present invention can be used as tissue adhesion, wound healing, skin closure, suture and leakage prevention of vascular structures such as blood vessels, hemostasis or anti-adhesion. In addition, the chitosan derivative of the present invention shows excellent efficiency in terms of immobilization and release of the drug, and has a high possibility of application as a drug carrier because it is not toxic. |