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Gelatin Modification with Photocuring Thymine Derivative and its Application for Hemostatic Aid
Chung, Dong June,Matsuda, Takehisa 한국공업화학회 1998 Journal of Industrial and Engineering Chemistry Vol.4 No.4
Gelatin was derivatized with [1-(2-carboxyethyl)thymine)] via coupling reaction with lysinyl amine groups of gelatin in the presence of a water-soluble carbodiimide. Ultraviolet (UV) irradiation on photosensitive thyminated gelatin films resulted in the formation of crosslinked gelatin gels. Degrees of swelling and photocuring depended on the thymine content of gelatin and irradiation time. The crosslinking rate and physical properties of photocured gelatin are controlled by the degree of derivatization and photo-irradiation time. Photocuring of a viscous thyminated gelatin solution coated on a mechanically injured liver surface of rat was demon-strated for possible use as a sealant or hemostatic aid for bleeding during laparoscopic procedures.