Colloids Surf B Biointerfaces:氧化石墨烯固定化表面促进多西环素的持续释放可预防植体相关感染的发生

2019-06-15 不详 网络

预防植入物相关感染可导致植入物失败和医疗费用的增加,这是整形外科医生面临的最大挑战之一。因此,需要开发稳定且高效的表面改性以增加植入物的抗微生物性质。在这项研究中,氧化石墨烯(GO-)-固定化二氧化钛(TiO 2)被开发用于有效携带和释放抗菌药物。首先,合成酪胺结合的GO(GOTA)并通过酪氨酸酶(Tyr)催化的氧化反应(GOTA/TiO2)固定在TiO 2的表面上。然后通过GO和Dox(Dox

预防植入物相关感染可导致植入物失败和医疗费用的增加,这是整形外科医生面临的最大挑战之一。因此,需要开发稳定且高效的表面改性以增加植入物的抗微生物性质。在这项研究中,氧化石墨烯(GO-)-固定化二氧化钛(TiO 2)被开发用于有效携带和释放抗菌药物。

首先,合成酪胺结合的GO(GOTA)并通过酪氨酸酶(Tyr)催化的氧化反应(GOTA/TiO2)固定在TiO 2的表面上。然后通过GO和Dox(Dox / GOTA/TiO2)之间的非共价相互作用将盐酸多西环素(Dox)加载到GOTA/TiO2上,包括静电相互作用,π-π堆积,疏水相互作用和氢键。能够控制负载药物的量,达到最大值36μg/cm2。体外实验表明,Dox从TiO 2表面的持续释放持续超过30天。与裸TiO2和GOTA/TiO2相比,Dox/GOTA/TiO2对革兰氏阴性大肠杆菌和革兰氏阳性金黄色葡萄球菌均表现出优异的抗菌活性,而不影响人皮肤成纤维细胞的活力。

综上所述,该研究结果表明,GO固定的TiO 2是抗菌药物递送的有效载体,通过GO和处方药的协同抗微生物作用减少植入物相关的感染

原始出处:

Tran DL, Le Thi P, et al., Graphene oxide immobilized surfaces facilitate the sustained release of doxycycline for the prevention of implant related infection. Colloids Surf B Biointerfaces. 2019 Jun 5;181:576-584. doi: 10.1016/j.colsurfb.2019.06.009. 

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    2019-07-08 sunylz
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    2020-03-07 waiwai3030
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    2019-11-28 shanyongle
  6. [GetPortalCommentsPageByObjectIdResponse(id=1918739, encodeId=41071918e396e, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Mon Jul 08 04:12:00 CST 2019, time=2019-07-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1651605, encodeId=93ad165160542, 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=21, 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=Fri Apr 03 18:12:00 CST 2020, time=2020-04-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1783356, encodeId=0a431e83356a5, content=<a href='/topic/show?id=f16a499652' target=_blank style='color:#2F92EE;'>#Coll#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4996, encryptionId=f16a499652, topicName=Coll)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=07f7192, createdName=waiwai3030, createdTime=Sat Mar 07 17:12:00 CST 2020, time=2020-03-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1956777, encodeId=4aba1956e774d, content=<a href='/topic/show?id=7647e210ac' target=_blank style='color:#2F92EE;'>#FAC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=16, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7210, encryptionId=7647e210ac, topicName=FAC)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdqq.qlogo.cn/qqapp/1103841572/B389FA68ECBF51BE2FE14093CF61F6AE/100, createdBy=eb8e2500096, createdName=夏天与十三菇凉, createdTime=Thu May 28 10:12:00 CST 2020, time=2020-05-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1655957, encodeId=cabe165595ea0, content=<a href='/topic/show?id=2a011829d7' target=_blank style='color:#2F92EE;'>#ACE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=18, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1829, encryptionId=2a011829d7, topicName=ACE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=635024767990, createdName=shanyongle, createdTime=Thu Nov 28 14:12:00 CST 2019, time=2019-11-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1707002, encodeId=fa301e070029e, content=<a href='/topic/show?id=d2773359191' target=_blank style='color:#2F92EE;'>#化石#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=33591, encryptionId=d2773359191, topicName=化石)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f4d531331396, createdName=ms7899726347904398, createdTime=Thu Oct 31 22:12:00 CST 2019, time=2019-10-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1370599, encodeId=4b7013e05990e, content=<a href='/topic/show?id=cca84345545' target=_blank style='color:#2F92EE;'>#多西环素#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=43455, encryptionId=cca84345545, topicName=多西环素)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=25d7319, createdName=珙桐, createdTime=Mon Jun 17 09:12:00 CST 2019, time=2019-06-17, status=1, ipAttribution=)]
  7. [GetPortalCommentsPageByObjectIdResponse(id=1918739, encodeId=41071918e396e, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Mon Jul 08 04:12:00 CST 2019, time=2019-07-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1651605, encodeId=93ad165160542, 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=21, 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=Fri Apr 03 18:12:00 CST 2020, time=2020-04-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1783356, encodeId=0a431e83356a5, content=<a href='/topic/show?id=f16a499652' target=_blank style='color:#2F92EE;'>#Coll#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4996, encryptionId=f16a499652, topicName=Coll)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=07f7192, createdName=waiwai3030, createdTime=Sat Mar 07 17:12:00 CST 2020, time=2020-03-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1956777, encodeId=4aba1956e774d, content=<a href='/topic/show?id=7647e210ac' target=_blank style='color:#2F92EE;'>#FAC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=16, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7210, encryptionId=7647e210ac, topicName=FAC)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdqq.qlogo.cn/qqapp/1103841572/B389FA68ECBF51BE2FE14093CF61F6AE/100, createdBy=eb8e2500096, createdName=夏天与十三菇凉, createdTime=Thu May 28 10:12:00 CST 2020, time=2020-05-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1655957, encodeId=cabe165595ea0, content=<a href='/topic/show?id=2a011829d7' target=_blank style='color:#2F92EE;'>#ACE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=18, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1829, encryptionId=2a011829d7, topicName=ACE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=635024767990, createdName=shanyongle, createdTime=Thu Nov 28 14:12:00 CST 2019, time=2019-11-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1707002, encodeId=fa301e070029e, content=<a href='/topic/show?id=d2773359191' target=_blank style='color:#2F92EE;'>#化石#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=33591, encryptionId=d2773359191, topicName=化石)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f4d531331396, createdName=ms7899726347904398, createdTime=Thu Oct 31 22:12:00 CST 2019, time=2019-10-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1370599, encodeId=4b7013e05990e, content=<a href='/topic/show?id=cca84345545' target=_blank style='color:#2F92EE;'>#多西环素#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=43455, encryptionId=cca84345545, topicName=多西环素)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=25d7319, createdName=珙桐, createdTime=Mon Jun 17 09:12:00 CST 2019, time=2019-06-17, status=1, ipAttribution=)]