Porous bioactive calcium carbonate implants processed by starch consolidation

被引：95

作者：

Lemos, AF ^{[1
]}

Ferreira, JMF ^{[1
]}

机构：

[1] Univ Aveiro, UIMC, Dept Ceram & Glass Engn, P-3810193 Aveiro, Portugal

来源：

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS | 2000年 / 11卷 / 01期

关键词：

starch consolidation; suspensions; macroporous bioceramics; calcium carbonate; bioactivity;

D O I：

10.1016/S0928-4931(00)00134-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Macroporous calcium carbonate (CaCO3) materials with porous structures suitable for implantation purposes were prepared in the present work. A new "direct consolidation" technique that uses starch granules as consolidator agent and as pore formers, combined with other larger organic inclusions, enabled us to tailor the porous microstructure for the intended application. Pore sizes as large as several hundreds of micrometers could be generated without matrix cracking, due to the high solid loading of the starting suspensions. The macroporous CaCO3 bodies fabricated exhibit an accentuated bioactivity even for shea soaking time periods. The crystalline calcium phosphate phases precipitate preferentially in the pores, pore boundaries, or in other strained sites at the surface of the samples. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：35 / 40

页数：6

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