首页 | 本学科首页   官方微博 | 高级检索  
     

仿生矿化法制备可降解羟基磷灰石/氧化细菌纤维素复合材料
引用本文:李建,万怡灶,黄远,何芳,王玉林.仿生矿化法制备可降解羟基磷灰石/氧化细菌纤维素复合材料[J].复合材料学报,2008,25(6):7-11.
作者姓名:李建  万怡灶  黄远  何芳  王玉林
作者单位:天津大学 材料学院, 天津市材料复合与功能化重点实验室, 天津 300072
基金项目:国家自然科学基金(50673076; 50872088; 50539060);天津市科技计划(07ZCKFSF01100);国家重大基础研究973项目(2007CB936100)
摘    要:细菌纤维素是具有天然纳米网状结构的支架材料,对其进行氧化改性后可获得可调控的降解性能。通过仿生矿化氧化改性的细菌纤维素支架,制备了可降解羟基磷灰石/氧化细菌纤维素复合骨组织工程支架材料。观察并分析了仿生矿化过程氧化细菌纤维素的降解和羟基磷灰石的形成,并通过SEM、EDS、XRD对羟基磷灰石在可降解氧化细菌纤维素支架上沉积进行了表征,矿化7天的羟基磷灰石/氧化细菌纤维素复合材料表面和内部均有磷灰石形成,测得磷灰石的钙磷比为1.75,主要为羟基磷灰石,伴有少量碳羟磷灰石。结果表明,使用仿生矿化法成功获得了一种新型可降解羟基磷灰石/氧化纤维素复合材料支架。

关 键 词:细菌纤维素    羟基磷灰石    仿生矿化    可降解
收稿时间:2008-03-06
修稿时间:2008-05-27

Preparation of hydroxyapaite/2,3-diaidehyde bacterial cellulose composite via biomimetic route
LI Jian,WAN Yizao,HUANG Yuan,HE Fang,WANG Yulin.Preparation of hydroxyapaite/2,3-diaidehyde bacterial cellulose composite via biomimetic route[J].Acta Materiae Compositae Sinica,2008,25(6):7-11.
Authors:LI Jian  WAN Yizao  HUANG Yuan  HE Fang  WANG Yulin
Affiliation:School of Materials Science and Engineering, Tianjin University, Tianjin Key Laboratory of Composite and Functional Materials,Tianjin 300072,China
Abstract:Bacterial cellulose (BC) is a kind of biomedical scaffold with nano network. BC should be oxidized to 2, 3-dialdehyde bacterial cellulose (DABC) by sodium periodate to make BC degradable. By the biomimetic route,the degradable HA/DABC composites for bone tissue engineering were prepared. It was observed that the apatite mineralized on DABC via the biomimetic route together with degradation of DABC by SEM. The HA/DABC composites acquired were proved by SEM,EDS and XRD. There was apatite formation on the surface and inside of the DABC via 7 days biomimetic mineralization. The ratio of calcium phosphate to the apatite is 1.75 by EDS.  It was proved to be hydroxyapatite mainly with a little carbonate hydroxyapatite by XRD. It is shown that the degradable HA/DABC composites for bone tissue engineering could be prepared via the biomimetic route.
Keywords:bacterial cellulose     hydroxyapatite     biomimetic     degradable
本文献已被 万方数据 等数据库收录!
点击此处可从《复合材料学报》浏览原始摘要信息
点击此处可从《复合材料学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号