Biofabrication:高温3D打印工艺增强钛涂层聚醚醚酮植入物的生物活性

2019-08-02 不详 网络

聚醚醚酮(PEEK)是植入金属材料的潜在替代品之一,必须涉及三维(3D)印刷的高温工艺条件。我们开发了一种3D打印设备,配备了印刷喷嘴和建筑物腔室的热稳定模块,通过它可以成功制造PEEK植入物。在优化的印刷条件下,3D印刷样品的最大机械强度达到PEEK原始整体性能的80%以上。为了增强界面生物相容性,使用钛(Ti)溅射对印刷后的植入物进行后处理。通过XRD(X射线衍射)光谱,显微镜形貌和润湿性质的

聚醚醚酮(PEEK)是植入金属材料的潜在替代品之一,必须涉及三维(3D)印刷的高温工艺条件。我们开发了一种3D打印设备,配备了印刷喷嘴和建筑物腔室的热稳定模块,通过它可以成功制造PEEK植入物。

在优化的印刷条件下,3D印刷样品的最大机械强度达到PEEK原始整体性能的80%以上。为了增强界面生物相容性,使用钛(Ti)溅射对印刷后的植入物进行后处理。通过XRD(X射线衍射)光谱,显微镜形貌和润湿性质的表征研究评估Ti涂覆的表面。对于体外试验,在发育的PEEK-Ti结构上培养前成骨细胞,并在细胞粘附,增殖和成骨分化方面进行评估。此外,PEEK-Ti植入物的骨再生能力通过使用兔胫骨缺损模型的动物实验确认。在整个体外和体内测试中,我们通过比较具有或不具有Ti涂层的机加工和印刷样品的样品,证实了Ti改性和3D印刷界面的优异生物活性。

总之,涉及3D打印和生物相容性后处理的综合制造方法有望在骨组织工程中广泛适用。

原始出处:

Jung HD, Jang TS, et al., Enhanced bioactivity of titanium-coated polyetheretherketone implants created by a high-temperature 3D printing process. Biofabrication. 2019 Jul 31. doi: 10.1088/1758-5090/ab376b.

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    2020-07-14 30397613
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    2020-01-16 sunylz
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    2019-08-04 lqrandywkz
  6. [GetPortalCommentsPageByObjectIdResponse(id=1679807, encodeId=5d7116e9807f4, content=<a href='/topic/show?id=d4ac9639efa' target=_blank style='color:#2F92EE;'>#钛#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=96397, encryptionId=d4ac9639efa, topicName=钛)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=927227807332, createdName=30397613, createdTime=Tue Jul 14 07:45:00 CST 2020, time=2020-07-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1918795, encodeId=f24a1918e9596, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Thu Jan 16 19:45:00 CST 2020, time=2020-01-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1336132, encodeId=814013361320d, content=<a href='/topic/show?id=792612047e' target=_blank style='color:#2F92EE;'>#3D#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1204, encryptionId=792612047e, topicName=3D)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/pSGl6CJeZ2PzWxdhCtrvv4U9Q281RV8e0AKmlB5ib93DibbiaRyOzmkCdz5F04cbfX5RGOpG4dOXvuQW1fumibVeBg/132, createdBy=fc342500110, createdName=ms9833124466084992, createdTime=Sun Aug 04 05:45:00 CST 2019, time=2019-08-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1490920, encodeId=afab14909203d, content=<a href='/topic/show?id=fb916268636' target=_blank style='color:#2F92EE;'>#植入物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=114, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=62686, encryptionId=fb916268636, topicName=植入物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=38628846382, createdName=linagood, createdTime=Sun Aug 04 05:45:00 CST 2019, time=2019-08-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1506532, encodeId=8c2e150653267, content=<a href='/topic/show?id=89061024e70b' target=_blank style='color:#2F92EE;'>#高温#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=99, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102477, encryptionId=89061024e70b, topicName=高温)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=90ad9763425, createdName=lqrandywkz, createdTime=Sun Aug 04 05:45:00 CST 2019, time=2019-08-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1520610, encodeId=832d1520610eb, content=<a href='/topic/show?id=7a736264553' target=_blank style='color:#2F92EE;'>#植入#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=62645, encryptionId=7a736264553, topicName=植入)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=832411313664, createdName=jiyangfei, createdTime=Sun Aug 04 05:45:00 CST 2019, time=2019-08-04, status=1, ipAttribution=)]
    2019-08-04 jiyangfei