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Nat Commun:磁性石墨纳米胶囊增强MRI可有效检测胃幽门螺杆菌感染

2017-08-10 MedSci MedSci原创

幽门螺杆菌感染与许多疾病的发生有关。目前为止,尽管研究人员已经进行了大量的研究,但是仍未能找到一种无痛、快速且可直接原位检测幽门螺杆菌的方法。究其原因主要是由于胃粘膜的强酸性/酶环境。本研究中,研究人员制备了一种稳定的磁性石墨纳米胶囊(MGNs),用于原位靶向磁共振成像(MRI)幽门螺杆菌的检测。多层石墨烯作为外壳可有效保护了磁芯免受胃酸腐蚀,同时还可MRI在胃环境中的优异对比效果。此外,研究人员

幽门螺杆菌感染与许多疾病的发生有关。目前为止,尽管研究人员已经进行了大量的研究,但是仍未能找到一种无痛、快速且可直接原位检测幽门螺杆菌的方法。究其原因主要是由于胃粘膜的强酸性/酶环境。

本研究中,研究人员制备了一种稳定的磁性石墨纳米胶囊(MGNs),用于原位靶向磁共振成像(MRI)幽门螺杆菌的检测。多层石墨烯作为外壳可有效保护了磁芯免受胃酸腐蚀,同时还可MRI在胃环境中的优异对比效果。此外,研究人员还合成了硼酸聚乙二醇分子,并修饰在MGN表面用于靶向MRI检测。

将该检测系统用于幽门螺杆菌感染小鼠模型中,结果显示,使用功能化的MGNs,在T2加权MR成像和拉曼胃黏膜成像均可特异性检测出幽门螺杆菌。

总之,该研究结果表明,在检测环境较为恶劣的情况下,使用MGNs的增强MRI其检测前景巨大,或可成为潜在的生物成像平台。

原始出处:


Yunjie Li, Xiaoxiao Hu, et al., In situ targeted MRI detection of Helicobacter pylori with stable magnetic graphitic nanocapsules. Nat Commun. 2017; 8: 15653. Published online 2017 Jun 15. doi: 10.1038/ncomms15653.

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    2017-10-27 liye789132251
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    2018-07-19 kcb069
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    2017-12-06 liuli5079
  5. [GetPortalCommentsPageByObjectIdResponse(id=1882355, encodeId=16051882355d8, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Fri Oct 27 21:29:00 CST 2017, time=2017-10-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1811727, encodeId=c3a01811e27af, content=<a href='/topic/show?id=751f8889423' target=_blank style='color:#2F92EE;'>#螺杆菌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=88894, encryptionId=751f8889423, topicName=螺杆菌)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=87b1109, createdName=kcb069, createdTime=Thu Jul 19 23:29:00 CST 2018, time=2018-07-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1935898, encodeId=678e1935898dd, content=<a href='/topic/show?id=2898e7447c2' target=_blank style='color:#2F92EE;'>#纳米胶囊#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77447, encryptionId=2898e7447c2, topicName=纳米胶囊)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTIuNQXObUwZmFG3VcZa2uhFq27sY7vfTowUhQCgRj2bj1odUibMF4sFXpuRLf6IE5t5yGVDSiaOoOcQ/132, createdBy=1e622500088, createdName=ms1065684921169360, createdTime=Tue Apr 03 13:29:00 CST 2018, time=2018-04-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2087099, encodeId=697b208e099a7, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Wed Dec 06 00:29:00 CST 2017, time=2017-12-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1348711, encodeId=25fe1348e1128, content=<a href='/topic/show?id=cfeb49103af' target=_blank style='color:#2F92EE;'>#幽门螺杆菌感染#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=85, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=49103, encryptionId=cfeb49103af, topicName=幽门螺杆菌感染)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6ab940, createdName=hukaixun, createdTime=Sat Aug 12 04:29:00 CST 2017, time=2017-08-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=232181, encodeId=a1822321812f, content=学习了受益匪浅。, beContent=null, objectType=article, channel=null, level=null, likeNumber=110, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLDicHg2ldsSNmib46PmdzpO7CQEmPjuULp1v45zPWwMYhrnXgvl3OtmUCZSQfgITWn96X9moL94nUGA/0, createdBy=28072041016, createdName=131****1460, createdTime=Thu Aug 10 14:53:16 CST 2017, time=2017-08-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=232176, encodeId=0d192321e644, content=纳米材料好像一直很火啊, beContent=null, objectType=article, channel=null, level=null, likeNumber=103, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=90f31612316, createdName=xiaotaiyang1, createdTime=Thu Aug 10 14:43:56 CST 2017, time=2017-08-10, status=1, ipAttribution=)]
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    2017-08-10 131****1460

    学习了受益匪浅。

    0

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    2017-08-10 xiaotaiyang1

    纳米材料好像一直很火啊

    0

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