Nanotoxicology:干式转移技术制备石墨烯涂覆钛可改善骨整合并抑制菌膜形成

2018-03-16 MedSci MedSci原创

钛种植体骨整合所需的时间过长,而且其表面的细菌定居是种植失败的主要原因。石墨烯可以克服这些问题,但其在基材上的湿转移需要使用有害化学物质限制了其临床应用。另外,虽然已经开发出干转移技术,但是这种技术的生物学特性尚未研究。在这里,研究发现基于热压法的干式转印技术可使石墨烯涂布钛基材,并且单次转移覆盖面积大于90%。与单纯的钛相比,石墨烯包被的钛具有细胞相容性,不诱导细胞膜损伤,可诱导人成骨细胞成熟(

钛种植体骨整合所需的时间过长,而且其表面的细菌定居是种植失败的主要原因。石墨烯可以克服这些问题,但其在基材上的湿转移需要使用有害化学物质限制了其临床应用。另外,虽然已经开发出干转移技术,但是这种技术的生物学特性尚未研究。

在这里,研究发现基于热压法的干式转印技术可使石墨烯涂布钛基材,并且单次转移覆盖面积大于90%。与单纯的钛相比,石墨烯包被的钛具有细胞相容性,不诱导细胞膜损伤,可诱导人成骨细胞成熟(基因和蛋白质水平),并增加矿化基质的沉积。此外,石墨烯减少了变形链球菌、粪肠球菌甚至全钛唾液中生物膜的形成而不杀死细菌。

这些发现证实,通过干式转移技术将石墨烯涂覆钛是改善骨整合并防止植体生物膜形成的一种有前景的策略。

原始出处:

Dubey N, Ellepola K, et al., Graphene onto medical grade titanium: an atom-thick multimodal coating that promotes osteoblast maturation and inhibits biofilm formation from distinct species. Nanotoxicology. 2018 Feb 6:1-16. doi: 10.1080/17435390.2018.1434911. [Epub ahead of print]

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    2018-10-09 30397613
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  5. [GetPortalCommentsPageByObjectIdResponse(id=1795805, encodeId=f16d1e95805b8, content=<a href='/topic/show?id=bada1e680c4' target=_blank style='color:#2F92EE;'>#toxicology#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=21, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17680, encryptionId=bada1e680c4, topicName=toxicology)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2c31495, createdName=liuyg0228, createdTime=Tue Feb 26 01:05:00 CST 2019, time=2019-02-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1651555, encodeId=710216515554a, content=<a href='/topic/show?id=6e78e32573c' target=_blank style='color:#2F92EE;'>#石墨烯#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73257, encryptionId=6e78e32573c, topicName=石墨烯)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8db924213398, createdName=yangjxjc, createdTime=Tue Sep 11 04:05:00 CST 2018, time=2018-09-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1679691, encodeId=760716e969172, content=<a href='/topic/show?id=d4ac9639efa' target=_blank style='color:#2F92EE;'>#钛#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, 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 Oct 09 12:05:00 CST 2018, time=2018-10-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1521749, encodeId=3fba1521e496d, content=<a href='/topic/show?id=0b8f101e026a' target=_blank style='color:#2F92EE;'>#骨整合#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=101702, encryptionId=0b8f101e026a, topicName=骨整合)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=03f111392267, createdName=bnurmamat, createdTime=Sun Mar 18 13:05:00 CST 2018, time=2018-03-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=296932, encodeId=443f29693203, content=学习了.谢谢分享., beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/xkvRjYnJzzRJ2R0y7VhicibvkjPWHjIMmu4ZpKnE9cWAu4lVicS3uDUCfF4M4JWvrkrYfpb2KehPV0Ee29tPqyPEebBUibiaKhnvD/0, createdBy=f8412001184, createdName=惠映实验室, createdTime=Sat Mar 17 00:32:24 CST 2018, time=2018-03-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=296907, encodeId=708129690ec9, content=钛种植体骨整合所需的时间过长.而且其表面的细菌定居是种植失败的主要原因.石墨烯可以克服这些问题.但其在基材上的湿转移需要使用有害化学物质限制了其临床应用.另外.虽然已经开发出干转移技术.但是这种技术的生物学特性尚未研究., beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7cJ6ejWUr2nIia8qOvAKNdLHr32Df6G8iaoaOx6pHaoiacwp26DaslxZHCGbibZhhCGven4rvmWP60GahtzgFjgCjR/0, createdBy=6b111703011, createdName=有备才能无患, createdTime=Fri Mar 16 23:41:50 CST 2018, time=2018-03-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=296876, encodeId=5ffe2968e619, content=了解一下.谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cdnapi.center.medsci.cn/medsci/head/2019/12/23/2f51002e1349ccda5be11c1eea1e1e60.jpg, createdBy=a22097948, createdName=天地飞扬, createdTime=Fri Mar 16 22:19:16 CST 2018, time=2018-03-16, status=1, ipAttribution=)]
    2018-03-17 惠映实验室

    学习了.谢谢分享.

    0

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    2018-03-16 有备才能无患

    钛种植体骨整合所需的时间过长.而且其表面的细菌定居是种植失败的主要原因.石墨烯可以克服这些问题.但其在基材上的湿转移需要使用有害化学物质限制了其临床应用.另外.虽然已经开发出干转移技术.但是这种技术的生物学特性尚未研究.

    0

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    2018-03-16 天地飞扬

    了解一下.谢谢分享!

    0