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Structural and Tissue Reaction Properties of Novel Hydroxyapatite Ceramics with Unidirectional Pores

文献类型： 会议论文

第一作者： Y. Suetsugu

作者： Y. Suetsugu 1 ; Y. Hotta 2 ; M. Iwasashi 3 ; M. Sakane; M. Kikuchi; T. Ikoma; T. Higaki; N. Ochiai; J. Tanaka;

作者机构： 1.Biomaterials Center, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan

2.Kurashiki Research Laboratories, Kuraray Co., Ltd., 2045-1 Sakazu, Kurashiki, Okayama 710-8691, Japan

3.Department of Orthopaedic Surgery, Unive

关键词： hydroxyapatite;porous ceramics;unidirectional pores;ice template

会议名称： Bioceramics vol.19 pt.2

主办单位：

页码： 1003,1006-

摘要： Porous ceramics of hydroxyapatite was fabricated utilizing the crystal growth of thin ice columns parallel to one another in gelatin gel containing hydroxyapatite nanoparticles. The obtained ceramics possessed unidirectional pore channels with a porosity of around 75% and showed compressive strength of up to 13.1 MPa. As control materials, porous hydroxyapatite ceramics with a directionless pore structure were also fabricated by isotropic freezing and compared with the unidirectional samples regarding compressive strength and tissue reaction in vivo. Although the porosity and pore size distribution were similar, the compressive strength and new bone formation ability of the unidirectional samples were significantly greater than those of the random structured porous ceramics.

分类号： [ "R318.08" , "R318.08"]

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