PMID: 18435279Apr 26, 2008Paper

Study on the temporal change of properties of genipin crosslinked gelatin

Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi
Xunjie JinGongping Xu

Abstract

Investigated the changes of crosslinking index, swelling ratio, degradation rate and cytotoxicity of genipin crosslinked gelatin accompany with crosslinking time. 1% genipin crosslinked gelatin were divided into 7 groups by crosslinking time: 10 min group, 30 min group, 1 h group, 2 h group, 12 h group, 24 h group, 72 h group. The results proved that genipin could crosslink gelatin effectively. Accompany with increasing of crosslinking time, crosslinking index increased, and swelling ratio, degradation rate decreased. In 10 min group, crosslinking index was low(26.7%), swelling ratio was high, (265%), completely degraded within 1 week. This indicated that biomaterials of 10 min group was instable and degraded easily. Compared with 10 min group, biomaterials of 30 min group changed significantly with crosslinking index(45.7%), swelling ratio (206%) and degration rate (completely degraded between 4 weeks and 8 weeks). This indicated that genipin could change the properties of gelatin within 30 min. Biomaterials after 30 min, crosslinking index increased, and swelling ratio, degradation rate decreased gradually accompanied with increasing of crosslinking time. Biomaterials of 72 h, crosslinking index was 73.1%, swelling ratio was ...Continue Reading

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