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首页> 外文期刊>Journal of biomedical materials research. Part B, Applied biomaterials. >Preparation of a bonelike apatite-polymer fiber composite using a simple biomimetic process.
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Preparation of a bonelike apatite-polymer fiber composite using a simple biomimetic process.

机译：使用简单的仿生工艺制备Bonelike磷灰石 - 聚合物纤维复合物。

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A bonelike apatite-polymer fiber composite may be useful as an implant material to replace bone, the enthesis of a tendon, and the joint part of a ligament. We treated an ethylene-vinyl alcohol copolymer (EVOH) plate and knitted EVOH fibers with an oxygen plasma to produce oxygen-containing functional groups on their surfaces. The plasma-treated samples were alternately dipped in alcoholic calcium and phosphate ion solutions three times to deposit apatite precursors onto their surfaces. The surface-modified samples formed a dense and uniform bonelike surface apatite layer after immersion for 24 h in a simulated body fluid with ion concentrations approximately equal to those of human blood plasma. The adhesive strength between the apatite layer and the sample's surface increased with increasing power density of the oxygen plasma. The apatite-EVOH fiber composite obtained by our process has similarities to natural bone in that apatite crystals are deposited on organic polymer fibers. The resulting composite would possess osteoconductivity due to the apatite phase. With proper polymer selection and optimized synthesis techniques, a composite could be made that would have bonelike mechanical properties. Hence, the present surface modification and coating process would be a promising route to obtain new implant materials with bonelike mechanical properties and osteoconductivity.
机译：Bonelikike磷灰石聚合物纤维复合材料可用作替代骨骼的植入物材料，肌腱的疼痛和韧带的关节部分。我们处理了一种乙烯 - 乙烯醇共聚物（EVOH）板，并用氧等离子体针织EVOH纤维在其表面上产生含氧官能团。将血浆处理的样品交替地浸入酒精钙和磷酸根离子溶液中，三次将磷灰石前体沉积在其表面上。表面改性样品在浸入模拟体液中的模拟体液中形成致密和均匀的合成表面磷灰石层，离子浓度大致等于人血浆。随着氧等离子体的功率密度增加，磷灰石层和样品表面之间的粘合强度增加。通过我们的方法获得的磷灰石-EVOH纤维复合材料与磷灰石晶体沉积在有机聚合物纤维上的天然骨中的相似之处。由于磷灰石相，所得复合材料具有骨导电性。通过适当的聚合物选择和优化的合成技术，可以制备具有合成机械性能的复合材料。因此，本面表面改性和涂覆方法是有望的途径，以获得具有Bonelike机械性能和骨导电性的新植入材料。

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