Nat Biotechnol:重磅!科学家开发出新型微型传感器 或有望加速癌症的诊断

2018-12-15 佚名 细胞

近日,一项刊登在国际杂志Nature Biotechnology上的研究报告中,来自美国雪城大学的科学家们通过研究开发了一种新型的纳米材料来改善癌症的检测。文章中,研究人员通过研究开发了一种微型传感器,其能够特异性地分析血清中蛋白质-蛋白质之间的相互作用(PPIs),而PPIs所提供的信息或许对于生物医学研究而言是一大福音,因为目前很多研究人员正在试图使促进癌细胞生长和扩散的蛋白质失去功能。

近日,一项刊登在国际杂志Nature Biotechnology上的研究报告中,来自美国雪城大学的科学家们通过研究开发了一种新型的纳米材料来改善癌症的检测。文章中,研究人员通过研究开发了一种微型传感器,其能够特异性地分析血清中蛋白质-蛋白质之间的相互作用(PPIs),而PPIs所提供的信息或许对于生物医学研究而言是一大福音,因为目前很多研究人员正在试图使促进癌细胞生长和扩散的蛋白质失去功能。

研究者Liviu Movileanu教授表示,详细解读人类基因组的相关信息或能为研究人员提供新的思路来鉴别更多功能性的蛋白质,而PPIs强度的主要干扰就会导致机体疾病的发生,由于这些相互作用具有暂时性,因此研究人员就需要新方法来对其进行评估。这项研究中,研究人员通过研究设计、开发并且优化了一类特殊的生物物理学工具,即纳米传感器,其是一种高度敏感性、基于孔隙的工具,能够在单分子水平下对机体中的机械过程进行检测,比如PPIs。

尽管PPIs在人类机体中随处都会发生,但利用当前的工具仍然很难对其进行检测,因为该过程仅会持续大约1毫秒,而PPIs会影响细胞的信号和癌症的发生。为此,研究人员在细胞膜上开了一个孔(相当于纳米孔的孔径),并通过这个孔来发射电流,当蛋白质贴近或穿过纳米孔时,电流的强度就会发生改变,这种改变就能帮助确定每一种蛋白质的特性及其最终的身份。

这一概念早在20世纪80年代都有了,但直到最近科学家们才开始大规模制造这类纳米生物传感器,用以检测DNA、糖类、爆炸物、毒素及其它纳米规格的材料。研究人员希望这种实时技术能帮助在癌症扩散前就实现对癌症的早期诊断;让研究人员非常感兴趣的一种癌症就是淋巴细胞白血病,这是一种非常常见的恶性疾病,其始于骨髓,而且癌细胞会扩散到血液中,由于白血病细胞并不会成熟以及死亡,因此其会经常处于失控状态。

研究者Movileanu解释道,白血病细胞会在骨髓中堆积,排挤正常健康的细胞,并不像其它癌症,比如乳腺癌结肠癌肺癌,这些癌症会扩散到骨髓中,而淋巴细胞白血病则起源于淋巴结中(因此而得名)。研究者Movileanu的这项研究计划是一项名为相互作用物组学(interactomics)的研究计划的一部分,相互作用物组学利用实验和计算技术研究蛋白质之间的相互作用以及相互作用所带来的后果。

研究者表示,从单一蛋白质样本中收集的数据是非常巨大的,他们所开发的纳米结构能帮助他们以一种敏感、特殊和定量的方式来观察生化事件,随后就能对单一蛋白质样本进行可靠的评估;下一步研究人员想通过在更为复杂的生物样本中对PPIs进行研究,比如细胞裂解物和活组织样本等。

最后研究者Movileanu说道,如果我们能知道细胞功能的单一部分是如何发挥作用的,我们就能够阐明为何细胞会从正常状态向肿瘤样状态转变;本文中研究者所开发的微型传感器或许就有很大的用途,包括生物标志物筛查、蛋白质分析以及蛋白质互作的分析等。

原始出处:

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 (6)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1652311, encodeId=251c16523112c, content=<a href='/topic/show?id=13d01e24509' target=_blank style='color:#2F92EE;'>#TEC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17245, encryptionId=13d01e24509, topicName=TEC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=852f24292001, createdName=shock_melon, createdTime=Thu Feb 14 08:51:00 CST 2019, time=2019-02-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1927699, encodeId=4d5d192e6996c, content=<a href='/topic/show?id=a59234e3b4' target=_blank style='color:#2F92EE;'>#Biotech#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3473, encryptionId=a59234e3b4, topicName=Biotech)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=226a143, createdName=cathymary, createdTime=Sun Mar 24 06:51:00 CST 2019, time=2019-03-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883488, encodeId=e7dd1883488c1, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sat Mar 02 06:51:00 CST 2019, time=2019-03-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1918430, encodeId=504319184301c, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Sun Sep 15 21:51:00 CST 2019, time=2019-09-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1493685, encodeId=979e1493685b5, content=<a href='/topic/show?id=e3a72586595' target=_blank style='color:#2F92EE;'>#传感器#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=25865, encryptionId=e3a72586595, topicName=传感器)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=06f59086560, createdName=mjldent, createdTime=Mon Dec 17 06:51:00 CST 2018, time=2018-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1549416, encodeId=a5d61549416be, content=<a href='/topic/show?id=f7879600061' target=_blank style='color:#2F92EE;'>#重磅#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=21, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=96000, encryptionId=f7879600061, topicName=重磅)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=3acc14121561, createdName=xxxx1054, createdTime=Mon Dec 17 06:51:00 CST 2018, time=2018-12-17, status=1, ipAttribution=)]
    2019-02-14 shock_melon
  2. [GetPortalCommentsPageByObjectIdResponse(id=1652311, encodeId=251c16523112c, content=<a href='/topic/show?id=13d01e24509' target=_blank style='color:#2F92EE;'>#TEC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17245, encryptionId=13d01e24509, topicName=TEC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=852f24292001, createdName=shock_melon, createdTime=Thu Feb 14 08:51:00 CST 2019, time=2019-02-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1927699, encodeId=4d5d192e6996c, content=<a href='/topic/show?id=a59234e3b4' target=_blank style='color:#2F92EE;'>#Biotech#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3473, encryptionId=a59234e3b4, topicName=Biotech)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=226a143, createdName=cathymary, createdTime=Sun Mar 24 06:51:00 CST 2019, time=2019-03-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883488, encodeId=e7dd1883488c1, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sat Mar 02 06:51:00 CST 2019, time=2019-03-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1918430, encodeId=504319184301c, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Sun Sep 15 21:51:00 CST 2019, time=2019-09-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1493685, encodeId=979e1493685b5, content=<a href='/topic/show?id=e3a72586595' target=_blank style='color:#2F92EE;'>#传感器#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=25865, encryptionId=e3a72586595, topicName=传感器)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=06f59086560, createdName=mjldent, createdTime=Mon Dec 17 06:51:00 CST 2018, time=2018-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1549416, encodeId=a5d61549416be, content=<a href='/topic/show?id=f7879600061' target=_blank style='color:#2F92EE;'>#重磅#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=21, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=96000, encryptionId=f7879600061, topicName=重磅)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=3acc14121561, createdName=xxxx1054, createdTime=Mon Dec 17 06:51:00 CST 2018, time=2018-12-17, status=1, ipAttribution=)]
    2019-03-24 cathymary
  3. [GetPortalCommentsPageByObjectIdResponse(id=1652311, encodeId=251c16523112c, content=<a href='/topic/show?id=13d01e24509' target=_blank style='color:#2F92EE;'>#TEC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17245, encryptionId=13d01e24509, topicName=TEC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=852f24292001, createdName=shock_melon, createdTime=Thu Feb 14 08:51:00 CST 2019, time=2019-02-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1927699, encodeId=4d5d192e6996c, content=<a href='/topic/show?id=a59234e3b4' target=_blank style='color:#2F92EE;'>#Biotech#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3473, encryptionId=a59234e3b4, topicName=Biotech)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=226a143, createdName=cathymary, createdTime=Sun Mar 24 06:51:00 CST 2019, time=2019-03-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883488, encodeId=e7dd1883488c1, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sat Mar 02 06:51:00 CST 2019, time=2019-03-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1918430, encodeId=504319184301c, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Sun Sep 15 21:51:00 CST 2019, time=2019-09-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1493685, encodeId=979e1493685b5, content=<a href='/topic/show?id=e3a72586595' target=_blank style='color:#2F92EE;'>#传感器#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=25865, encryptionId=e3a72586595, topicName=传感器)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=06f59086560, createdName=mjldent, createdTime=Mon Dec 17 06:51:00 CST 2018, time=2018-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1549416, encodeId=a5d61549416be, content=<a href='/topic/show?id=f7879600061' target=_blank style='color:#2F92EE;'>#重磅#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=21, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=96000, encryptionId=f7879600061, topicName=重磅)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=3acc14121561, createdName=xxxx1054, createdTime=Mon Dec 17 06:51:00 CST 2018, time=2018-12-17, status=1, ipAttribution=)]
    2019-03-02 liye789132251
  4. [GetPortalCommentsPageByObjectIdResponse(id=1652311, encodeId=251c16523112c, content=<a href='/topic/show?id=13d01e24509' target=_blank style='color:#2F92EE;'>#TEC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17245, encryptionId=13d01e24509, topicName=TEC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=852f24292001, createdName=shock_melon, createdTime=Thu Feb 14 08:51:00 CST 2019, time=2019-02-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1927699, encodeId=4d5d192e6996c, content=<a href='/topic/show?id=a59234e3b4' target=_blank style='color:#2F92EE;'>#Biotech#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3473, encryptionId=a59234e3b4, topicName=Biotech)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=226a143, createdName=cathymary, createdTime=Sun Mar 24 06:51:00 CST 2019, time=2019-03-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883488, encodeId=e7dd1883488c1, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sat Mar 02 06:51:00 CST 2019, time=2019-03-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1918430, encodeId=504319184301c, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Sun Sep 15 21:51:00 CST 2019, time=2019-09-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1493685, encodeId=979e1493685b5, content=<a href='/topic/show?id=e3a72586595' target=_blank style='color:#2F92EE;'>#传感器#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=25865, encryptionId=e3a72586595, topicName=传感器)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=06f59086560, createdName=mjldent, createdTime=Mon Dec 17 06:51:00 CST 2018, time=2018-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1549416, encodeId=a5d61549416be, content=<a href='/topic/show?id=f7879600061' target=_blank style='color:#2F92EE;'>#重磅#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=21, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=96000, encryptionId=f7879600061, topicName=重磅)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=3acc14121561, createdName=xxxx1054, createdTime=Mon Dec 17 06:51:00 CST 2018, time=2018-12-17, status=1, ipAttribution=)]
    2019-09-15 sunylz
  5. [GetPortalCommentsPageByObjectIdResponse(id=1652311, encodeId=251c16523112c, content=<a href='/topic/show?id=13d01e24509' target=_blank style='color:#2F92EE;'>#TEC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17245, encryptionId=13d01e24509, topicName=TEC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=852f24292001, createdName=shock_melon, createdTime=Thu Feb 14 08:51:00 CST 2019, time=2019-02-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1927699, encodeId=4d5d192e6996c, content=<a href='/topic/show?id=a59234e3b4' target=_blank style='color:#2F92EE;'>#Biotech#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3473, encryptionId=a59234e3b4, topicName=Biotech)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=226a143, createdName=cathymary, createdTime=Sun Mar 24 06:51:00 CST 2019, time=2019-03-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883488, encodeId=e7dd1883488c1, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sat Mar 02 06:51:00 CST 2019, time=2019-03-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1918430, encodeId=504319184301c, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Sun Sep 15 21:51:00 CST 2019, time=2019-09-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1493685, encodeId=979e1493685b5, content=<a href='/topic/show?id=e3a72586595' target=_blank style='color:#2F92EE;'>#传感器#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=25865, encryptionId=e3a72586595, topicName=传感器)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=06f59086560, createdName=mjldent, createdTime=Mon Dec 17 06:51:00 CST 2018, time=2018-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1549416, encodeId=a5d61549416be, content=<a href='/topic/show?id=f7879600061' target=_blank style='color:#2F92EE;'>#重磅#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=21, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=96000, encryptionId=f7879600061, topicName=重磅)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=3acc14121561, createdName=xxxx1054, createdTime=Mon Dec 17 06:51:00 CST 2018, time=2018-12-17, status=1, ipAttribution=)]
    2018-12-17 mjldent
  6. [GetPortalCommentsPageByObjectIdResponse(id=1652311, encodeId=251c16523112c, content=<a href='/topic/show?id=13d01e24509' target=_blank style='color:#2F92EE;'>#TEC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17245, encryptionId=13d01e24509, topicName=TEC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=852f24292001, createdName=shock_melon, createdTime=Thu Feb 14 08:51:00 CST 2019, time=2019-02-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1927699, encodeId=4d5d192e6996c, content=<a href='/topic/show?id=a59234e3b4' target=_blank style='color:#2F92EE;'>#Biotech#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3473, encryptionId=a59234e3b4, topicName=Biotech)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=226a143, createdName=cathymary, createdTime=Sun Mar 24 06:51:00 CST 2019, time=2019-03-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883488, encodeId=e7dd1883488c1, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sat Mar 02 06:51:00 CST 2019, time=2019-03-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1918430, encodeId=504319184301c, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Sun Sep 15 21:51:00 CST 2019, time=2019-09-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1493685, encodeId=979e1493685b5, content=<a href='/topic/show?id=e3a72586595' target=_blank style='color:#2F92EE;'>#传感器#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=25865, encryptionId=e3a72586595, topicName=传感器)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=06f59086560, createdName=mjldent, createdTime=Mon Dec 17 06:51:00 CST 2018, time=2018-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1549416, encodeId=a5d61549416be, content=<a href='/topic/show?id=f7879600061' target=_blank style='color:#2F92EE;'>#重磅#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=21, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=96000, encryptionId=f7879600061, topicName=重磅)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=3acc14121561, createdName=xxxx1054, createdTime=Mon Dec 17 06:51:00 CST 2018, time=2018-12-17, status=1, ipAttribution=)]
    2018-12-17 xxxx1054

相关资讯

Nanomaterials:GO-Ag纳米材料可有效抗菌

本研究中,研究人员在硫醇(-SH)接枝的氧化石墨烯(GO)层上修饰银纳米颗粒(Ag NPs)以研究其对革兰氏阳性菌(金黄色葡萄球菌)和革兰氏阴性菌(铜绿假单胞菌)的抗菌活性。 场发射扫描电子显微镜(FESEM)和透射电子显微镜(TEM)检测显示,球形的Ag NPs附着于GO表面层。GO-Ag纳米复合材料的平均尺寸与原始GO(962nm)的平均尺寸相比明显减小(327nm),而装载的Ag NP

抗癌纳米材料多级载药系统令药物定向进入肿瘤深层

浙江大学转化医学院的一间实验室里,科学家用近红外激光照射乳腺癌小鼠。3分钟后,等候在肿瘤部位的“药匣子”打开,抗肿瘤药物快速均匀地渗透到肿瘤深层组织。4小时后,肿瘤细胞陆续凋亡。

Colloids Surf B Biointerfaces:氧化石墨烯可有效根除多种耐药细菌

石墨烯是一种新发现的二维纳米材料,其在很多领域的实际应用越来越多。在这项工作中,我们通过系统研究GO在巨噬细胞和动物模型中的抗菌能力,探索了氧化石墨烯(GO)的潜在生物医学应用。研究选择了三种细菌,包括肺炎克雷伯菌(Kp)、大肠杆菌(大肠杆菌)和铜绿假单胞菌(Pa)进行体外研究。其中Kp随后也用作体内研究的代表性多药耐药性(MDR)细菌。在体外研究中,研究人员发现GO可有效根除琼脂培养皿中的Kp,

Nature Communications:新型纳米RNA抗癌药物,多靶点击毁癌中之王

一种新型纳米颗粒能选择性地向肿瘤组织投递遗传物质,对周围健康组织没有副作用。

Anal Biochem:纳米材料用于乙型肝炎病毒 的检测

这项工作描述了使用电化学和光学技术检测乙型肝炎病毒(HBV)基因组DNA的不同方法。该检测方法由对HBV具有特异性的单链DNA探针(HEPB1S)组成,嫁接在还原型氧化石墨烯或金纳米颗粒修饰的金电极上。 差分脉冲伏安法分析表明,当与阴性对照相比时,HBV基因组DNA的添加导致当前峰值增加约1.4倍。与对数HBV-基因组DNA浓度和检测的电化学生物传感器之间存在线性相关性,直到目标为7.65p

Nanotechnology:新型介孔二氧化硅/还原氧化石墨烯纳米片可较好的发挥抗菌作用

细菌耐药性已成为一个全球性的健康问题,使得常规抗生素的效果变差。因此,迫切需要探索新型抗菌材料并制定有效的治疗策略来克服抗生素的耐药性。本研究中,研究人员通过简便的方法成功合成了银饰三明治状介孔二氧化硅/还原氧化石墨烯纳米片(rGO/MSN/Ag)作为新型抗菌材料。rGO和Ag纳米颗粒可在反应体系中还原而不添加任何其他还原剂。此外,由于银纳米粒子的改性,rGO/MSN/Ag具有较高的光热转化能力。