Baidu
map

Int J Nanomed:LL37负载的二氧化钛纳米孔的抗菌和成骨性能

2019-05-24 不详 网络

许多研究表明纳米管(NT)的大小可以显著影响成骨细胞在钛基材料上的行为。但NT与基材之间的弱结合强度极大地限制了其应用。本研究旨在比较NT和纳米孔(NP)涂层的稳定性,并通过在NP结构中加载LL37肽进一步制备抗菌钛基材料。使用划痕试验机研究NT和NP层的粘合强度。通过CCK8,碱性磷酸酶活性,矿化和聚合酶链反应测定在体外评估MC3T3-E1细胞在不同底物上的增殖和分化。NP和NP/LL37的抗菌

许多研究表明纳米管(NT)的大小可以显著影响成骨细胞在钛基材料上的行为。但NT与基材之间的弱结合强度极大地限制了其应用。本研究旨在比较NT和纳米孔(NP)涂层的稳定性,并通过在NP结构中加载LL37肽进一步制备抗菌钛基材料。

使用划痕试验机研究NT和NP层的粘合强度。通过CCK8,碱性磷酸酶活性,矿化和聚合酶链反应测定在体外评估MC3T3-E1细胞在不同底物上的增殖和分化。NP和NP/LL37的抗菌率也通过涂板法测量。此外,使用未感染感染的模型进一步评估体内NP和NP/LL37周围的成骨作用。

划痕试验证明NP层由于其连续的孔结构和比独立的NT结构更厚的管壁具有更强的与基底的结合强度。在体外,细胞结果显示NP基质上的MC3T3-E1细胞具有比NT组更好的早期粘附、扩散和成骨分化。此外,基于多孔材料的药物储库特征,NP底物也用于加载抗菌LL37肽。加载LL37后,NP的抗菌和成骨诱导能力得到进一步提高,从而明显促进未感染和感染模型的成骨。

总之,该研究结果表明,NP层具有比NT结构更强的结合强度,相应的NP材料可能比NT更适合制备用于骨损伤治疗的药物结合钛种植体。

原始出处:

Shen X, Al-Baadani MA, et al., Antibacterial and osteogenesis performances of LL37-loaded titania nanopores in vitro and in vivo. Int J Nanomedicine. 2019 Apr 30;14:3043-3054. doi: 10.2147/IJN.S198583. eCollection 2019.

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (5)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1978288, encodeId=1a8819e828898, content=<a href='/topic/show?id=fcbbe73746f' target=_blank style='color:#2F92EE;'>#纳米孔#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=111, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77374, encryptionId=fcbbe73746f, topicName=纳米孔)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0ad8182, createdName=axin009, createdTime=Wed Jul 10 20:13:00 CST 2019, time=2019-07-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1679788, encodeId=ccf816e97889c, content=<a href='/topic/show?id=d4ac9639efa' target=_blank style='color:#2F92EE;'>#钛#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, 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=Sat Jul 20 20:13:00 CST 2019, time=2019-07-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1330824, encodeId=d45f13308247b, content=<a href='/topic/show?id=c6b455688d1' target=_blank style='color:#2F92EE;'>#抗菌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=111, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=55688, encryptionId=c6b455688d1, topicName=抗菌)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdqq.qlogo.cn/qqapp/1103841572/2898B09F0DA89357D0D54A725E611AC7/100, createdBy=fdd32500040, createdName=ms7899726347904398, createdTime=Sun May 26 10:13:00 CST 2019, time=2019-05-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1352139, encodeId=aa4d13521399b, content=<a href='/topic/show?id=e95954093cd' target=_blank style='color:#2F92EE;'>#成骨#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54093, encryptionId=e95954093cd, topicName=成骨)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=zhaojie88, createdTime=Sun May 26 10:13:00 CST 2019, time=2019-05-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1609785, encodeId=b1151609e851b, content=<a href='/topic/show?id=eb6b1145939' target=_blank style='color:#2F92EE;'>#Med#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11459, encryptionId=eb6b1145939, topicName=Med)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=552a19396740, createdName=ms3994565386320060, createdTime=Sun May 26 10:13:00 CST 2019, time=2019-05-26, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1978288, encodeId=1a8819e828898, content=<a href='/topic/show?id=fcbbe73746f' target=_blank style='color:#2F92EE;'>#纳米孔#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=111, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77374, encryptionId=fcbbe73746f, topicName=纳米孔)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0ad8182, createdName=axin009, createdTime=Wed Jul 10 20:13:00 CST 2019, time=2019-07-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1679788, encodeId=ccf816e97889c, content=<a href='/topic/show?id=d4ac9639efa' target=_blank style='color:#2F92EE;'>#钛#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, 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=Sat Jul 20 20:13:00 CST 2019, time=2019-07-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1330824, encodeId=d45f13308247b, content=<a href='/topic/show?id=c6b455688d1' target=_blank style='color:#2F92EE;'>#抗菌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=111, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=55688, encryptionId=c6b455688d1, topicName=抗菌)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdqq.qlogo.cn/qqapp/1103841572/2898B09F0DA89357D0D54A725E611AC7/100, createdBy=fdd32500040, createdName=ms7899726347904398, createdTime=Sun May 26 10:13:00 CST 2019, time=2019-05-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1352139, encodeId=aa4d13521399b, content=<a href='/topic/show?id=e95954093cd' target=_blank style='color:#2F92EE;'>#成骨#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54093, encryptionId=e95954093cd, topicName=成骨)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=zhaojie88, createdTime=Sun May 26 10:13:00 CST 2019, time=2019-05-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1609785, encodeId=b1151609e851b, content=<a href='/topic/show?id=eb6b1145939' target=_blank style='color:#2F92EE;'>#Med#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11459, encryptionId=eb6b1145939, topicName=Med)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=552a19396740, createdName=ms3994565386320060, createdTime=Sun May 26 10:13:00 CST 2019, time=2019-05-26, status=1, ipAttribution=)]
    2019-07-20 30397613
  3. [GetPortalCommentsPageByObjectIdResponse(id=1978288, encodeId=1a8819e828898, content=<a href='/topic/show?id=fcbbe73746f' target=_blank style='color:#2F92EE;'>#纳米孔#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=111, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77374, encryptionId=fcbbe73746f, topicName=纳米孔)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0ad8182, createdName=axin009, createdTime=Wed Jul 10 20:13:00 CST 2019, time=2019-07-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1679788, encodeId=ccf816e97889c, content=<a href='/topic/show?id=d4ac9639efa' target=_blank style='color:#2F92EE;'>#钛#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, 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=Sat Jul 20 20:13:00 CST 2019, time=2019-07-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1330824, encodeId=d45f13308247b, content=<a href='/topic/show?id=c6b455688d1' target=_blank style='color:#2F92EE;'>#抗菌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=111, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=55688, encryptionId=c6b455688d1, topicName=抗菌)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdqq.qlogo.cn/qqapp/1103841572/2898B09F0DA89357D0D54A725E611AC7/100, createdBy=fdd32500040, createdName=ms7899726347904398, createdTime=Sun May 26 10:13:00 CST 2019, time=2019-05-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1352139, encodeId=aa4d13521399b, content=<a href='/topic/show?id=e95954093cd' target=_blank style='color:#2F92EE;'>#成骨#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54093, encryptionId=e95954093cd, topicName=成骨)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=zhaojie88, createdTime=Sun May 26 10:13:00 CST 2019, time=2019-05-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1609785, encodeId=b1151609e851b, content=<a href='/topic/show?id=eb6b1145939' target=_blank style='color:#2F92EE;'>#Med#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11459, encryptionId=eb6b1145939, topicName=Med)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=552a19396740, createdName=ms3994565386320060, createdTime=Sun May 26 10:13:00 CST 2019, time=2019-05-26, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=1978288, encodeId=1a8819e828898, content=<a href='/topic/show?id=fcbbe73746f' target=_blank style='color:#2F92EE;'>#纳米孔#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=111, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77374, encryptionId=fcbbe73746f, topicName=纳米孔)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0ad8182, createdName=axin009, createdTime=Wed Jul 10 20:13:00 CST 2019, time=2019-07-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1679788, encodeId=ccf816e97889c, content=<a href='/topic/show?id=d4ac9639efa' target=_blank style='color:#2F92EE;'>#钛#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, 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=Sat Jul 20 20:13:00 CST 2019, time=2019-07-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1330824, encodeId=d45f13308247b, content=<a href='/topic/show?id=c6b455688d1' target=_blank style='color:#2F92EE;'>#抗菌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=111, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=55688, encryptionId=c6b455688d1, topicName=抗菌)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdqq.qlogo.cn/qqapp/1103841572/2898B09F0DA89357D0D54A725E611AC7/100, createdBy=fdd32500040, createdName=ms7899726347904398, createdTime=Sun May 26 10:13:00 CST 2019, time=2019-05-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1352139, encodeId=aa4d13521399b, content=<a href='/topic/show?id=e95954093cd' target=_blank style='color:#2F92EE;'>#成骨#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54093, encryptionId=e95954093cd, topicName=成骨)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=zhaojie88, createdTime=Sun May 26 10:13:00 CST 2019, time=2019-05-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1609785, encodeId=b1151609e851b, content=<a href='/topic/show?id=eb6b1145939' target=_blank style='color:#2F92EE;'>#Med#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11459, encryptionId=eb6b1145939, topicName=Med)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=552a19396740, createdName=ms3994565386320060, createdTime=Sun May 26 10:13:00 CST 2019, time=2019-05-26, status=1, ipAttribution=)]
    2019-05-26 zhaojie88
  5. [GetPortalCommentsPageByObjectIdResponse(id=1978288, encodeId=1a8819e828898, content=<a href='/topic/show?id=fcbbe73746f' target=_blank style='color:#2F92EE;'>#纳米孔#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=111, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77374, encryptionId=fcbbe73746f, topicName=纳米孔)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0ad8182, createdName=axin009, createdTime=Wed Jul 10 20:13:00 CST 2019, time=2019-07-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1679788, encodeId=ccf816e97889c, content=<a href='/topic/show?id=d4ac9639efa' target=_blank style='color:#2F92EE;'>#钛#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, 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=Sat Jul 20 20:13:00 CST 2019, time=2019-07-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1330824, encodeId=d45f13308247b, content=<a href='/topic/show?id=c6b455688d1' target=_blank style='color:#2F92EE;'>#抗菌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=111, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=55688, encryptionId=c6b455688d1, topicName=抗菌)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdqq.qlogo.cn/qqapp/1103841572/2898B09F0DA89357D0D54A725E611AC7/100, createdBy=fdd32500040, createdName=ms7899726347904398, createdTime=Sun May 26 10:13:00 CST 2019, time=2019-05-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1352139, encodeId=aa4d13521399b, content=<a href='/topic/show?id=e95954093cd' target=_blank style='color:#2F92EE;'>#成骨#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54093, encryptionId=e95954093cd, topicName=成骨)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=zhaojie88, createdTime=Sun May 26 10:13:00 CST 2019, time=2019-05-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1609785, encodeId=b1151609e851b, content=<a href='/topic/show?id=eb6b1145939' target=_blank style='color:#2F92EE;'>#Med#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11459, encryptionId=eb6b1145939, topicName=Med)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=552a19396740, createdName=ms3994565386320060, createdTime=Sun May 26 10:13:00 CST 2019, time=2019-05-26, status=1, ipAttribution=)]
Baidu
map
Baidu
map
Baidu
map