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J Biomater Appl:Dimethyloxalylglycine可改善ZIF-8涂层植入物的血管生成

2019-05-24 不详 网络

具有一定密度的纳米级沸石咪唑酯骨架-8涂层可以在体外和体内显著改善钛植入物的成骨活性。在该研究中,我们将二甲基肟基甘氨酸加载到沸石咪唑酯骨架-8-修饰的植入物(Z-AHT)中以增强血管生成活性,并且将所得产物表示为D-AHT。首先,我们通过扫描电子显微镜,傅里叶变换红外光谱,粉末X射线衍射和表面接触角对样品进行了表征。然后,研究了锌离子和二甲基肟基甘氨酸的释放动力学。为了说明表面形貌和化学(沸石咪

具有一定密度的纳米级沸石咪唑酯骨架-8涂层可以在体外和体内显著改善钛植入物的成骨活性。在该研究中,我们将二甲基肟基甘氨酸加载到沸石咪唑酯骨架-8-修饰的植入物(Z-AHT)中以增强血管生成活性,并且将所得产物表示为D-AHT。

首先,我们通过扫描电子显微镜,傅里叶变换红外光谱,粉末X射线衍射和表面接触角对样品进行了表征。然后,研究了锌离子和二甲基肟基甘氨酸的释放动力学。为了说明表面形貌和化学(沸石咪唑酯骨架-8和二甲基肟基甘氨酸)对成骨和血管生成活性的综合影响,分别在D-AHT上培养MC3T3-E1前成骨细胞和人脐静脉内皮细胞。将纯Ti和Z-AHT指定为对照组。

结果,成骨基因(Alp,Col1,Opg和Runx2)的表达和ALP蛋白的分泌显示D-AHT显示出与Z-AHT相当的成骨活性,且其优于Ti。进一步的血管生成测定揭示了在D-AHT上更好的人脐静脉内皮细胞迁移,表明D-AHT可以是用于植入物表面修饰的有吸引力的候选物。

原始出处:

Zhang X, Wang J, et al., Dimethyloxalylglycine improves angiogenesis of ZIF-8-coated implant. J Biomater Appl. 2019 May 22:885328219850976. doi: 10.1177/0885328219850976. 

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    2020-02-15 kalseyzl
  2. [GetPortalCommentsPageByObjectIdResponse(id=1773792, encodeId=ce131e7379256, content=<a href='/topic/show?id=5f014e1852' target=_blank style='color:#2F92EE;'>#CIN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4718, encryptionId=5f014e1852, topicName=CIN)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a9a038523631, createdName=kalseyzl, createdTime=Sat Feb 15 19:31:00 CST 2020, time=2020-02-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1896498, encodeId=c333189649822, content=<a href='/topic/show?id=4a391158248' target=_blank style='color:#2F92EE;'>#MET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11582, encryptionId=4a391158248, topicName=MET)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=18fc139, createdName=一闲, createdTime=Tue Apr 14 06:31:00 CST 2020, time=2020-04-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1918700, encodeId=86c61918e0013, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, 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 Jul 25 07:31:00 CST 2019, time=2019-07-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1490911, encodeId=7bf51490911eb, 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=58, 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 May 26 10:31:00 CST 2019, time=2019-05-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1520589, encodeId=f0841520589eb, content=<a href='/topic/show?id=7a736264553' target=_blank style='color:#2F92EE;'>#植入#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, 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 May 26 10:31:00 CST 2019, time=2019-05-26, status=1, ipAttribution=)]
    2020-04-14 一闲
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    2019-07-25 sunylz
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    2019-05-26 jiyangfei
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