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    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/93287

    题名: Preparation of asymmetric polyhydroxybutyrate/chitosan composite membrane for guided bone regeneration
    作者: Don, Trong-Ming;Tai, Hung-Yin;Cheng, Liao-Ping;Lien, Wei
    贡献者: 淡江大學化學工程與材料工程學系
    日期: 2013-11-17
    上传时间: 2013-12-16 09:36:05 (UTC+8)
    摘要: In this study, an asymmetric composite membrane composed of a porous chitosan layer and a dense polyhydroxybutyrate (PHB) layer was prepared, and its mechanical properties as well as cellular compatibility were evaluated. First, the PHB dense layer with a thickness of ca. 32 m was obtained by direct oven-drying. After being treated with plasma to produce free radicals on the surface and subsequently graft polymerized with poly(acrylic acid), the PHB was immersed in the CS solution where the CS chains could be chemically bonded to the PHB surface via carbodiimide activation. After lyophilization, an asymmetric PHB/CS composite membrane was obtained. Compared to the porous CS membrane, the composite membrane had higher tensile mechanical properties. In addition, the fibroblast cells (L929 and HGF) and human osteoblast cells (hFOB1.19) were cultured on both sides of the composite membrane. All the cells could proliferate very well indicating that both PHB and CS layers were cellular compatible. Yet, the PHB dense layer could prohibit the fibroblast cells to penetrate through the membrane. Thus, the asymmetric composite membrane can be use as a potential barrier membrane for guided bone regeneration in periodontal tissue engineering.
    關聯: Proceeding of the 13th Pacific Polymer Conference
    显示于类别:[化學工程與材料工程學系暨研究所] 會議論文


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