Hybrid bioceramics with metals and polymers for better biomaterials

Hybrid bioceramics with metals and polymers for better biomaterials
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与金属和聚合物混合的生物陶瓷可提供更好的生物材料

DOI:
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发表时间:
1999
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通讯作者:
T. Kameyama
T. Kameyama
中科院分区:
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文献类型:
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作者:
T. Kameyama

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世界上需要人造骨骼和牙齿的人数将迅速增加。羟基磷灰石(HAp)由于其生物亲和性而被认为是合适的陶瓷。然而,由于其机械性能差,其在人工关节和牙根中的应用是困难的。提出了一种在超塑性钛合金中植入羟基磷灰石颗粒的新方法。我们还成功地提高了生物纤维(纤维素和甲壳素),通过磷酸化或硅烷偶联的表面改性磷酸钙的仿生生长。这种杂化材料可用于病毒过滤器、人工气管等,具有广阔的应用前景。
The number of people needing artificial bones and teeth will rapidly increase in the world. Hydroxyapaptite (HAp) is known to be a suitable ceramic owing to its biological affinity. However, its use in artificial joints and dental roots is difficult due to its poor mechanical properties. A new method to implant HAp granules into superplastic titanium alloy has been developed. We also succeeded to enhance the biomimetic growth of calcium phosphate on biological fibres (cellulose and chitin) through their surface modification by phosphorylation or silane coupling. This hybrid material may be used as virus filters, artificial trachea etc. The future of hybrid bioceramic materials appears to be promising.