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• 基础研究 • 上一篇    下一篇

多孔纳米羟基磷灰石/胶原复合材料的制备及性能

马 宁1,曾 毅2,张 莉1,杨海滨2*,张 明3   

  1. 1. 吉林大学口腔医院牙周病科,吉林 长春130041;2. 吉林大学国家超硬材料重点实验室,吉林 长春130051;3. 吉林大学基础医学院法医学教研室,吉林 长春130021
  • 收稿日期:2005-03-16 修回日期:1900-01-01 出版日期:2006-01-28 发布日期:2006-01-28
  • 通讯作者: 杨海滨

Preparation of porous nano-hydroxyapatite/collagen composite and its capability

MA Ning1, ZENG Yi2, ZHANG Li1,YANG Hai-bin2*, ZHANG Ming3   

  1. 1. Department of Periodontics,Stomatology Hospital, Jilin University,Changchun 130041,China; 2. State Key Laboratory of Superhard Materials, Jilin niversity,Changchun 130051,China; 3. Department of Forensic Medicine,School of Basic Medical Sciences, Jilin University,Changchun 130021,China
  • Received:2005-03-16 Revised:1900-01-01 Online:2006-01-28 Published:2006-01-28
  • Contact: YANG Hai-bin

摘要: 目的:探讨多孔纳米羟基磷灰石/胶原复合材料(NHAC)简单有效的复合方法和结构及其作为新型骨替代材料应用于组织工程的可行性。方法:以氢氧化钙和磷酸为原料合成多孔纳米羟基磷灰石晶体,从牛肌腱中提取可溶性I型胶原,应用戊二醛交联冻干法使二者复合制备成生物膜,用XRD和扫描电镜,对材料晶相组成、微观形貌、结构、晶粒大小进行分析。 结果:通过对合成工艺研究,制得的生物膜呈三维网孔状结构,孔径10~40 μm,大小均匀,由纳米尺度(10 nm×50 nm~20 nm×80 nm)的羟基磷灰石和胶原纤维组成。复合材料在晶相组成和尺寸上类似于天然骨。结论:NHAC复合材料有望成为理想的骨替代材料。

关键词: 胶原, 组织工程, 骨代用品

Abstract: Objective To study the simple preparation method and structure of nano-hydroxyapatite/collagen composite, to investigate new substitute of repairing bone for using in tissue engineering. Methods Porous nano-hydroxyapatite was made of Ca(OH)2 and H3PO4. Collagen was drawn from fresh adult bovine tendon. The two materials were prepared into biomembrane through the glutaraldehyde and f reeze-drying. The crystallite phase, micro-morphology, structure, crystallite size of the composite were examined by XRD and scanning electronic microscop(SEM). Results The results showed that the composite structure was porous and consisted of nano-hydroxyapatite (10 nm×50 nm-20 nm×80 nm)and collagen fiber. The crystallite phases and size of the composite was similar to that of natural bone. Conclusion The porous nano-hydroxyapatite /collagen composite is expected to be an ideal substitute of repairing bone.

Key words: collagen, tissue engineering, bone substitutes

中图分类号: 

  • R783.1