Nat Nanotechnol:别伤了我的心!监控心肌细胞的全新设备问世

2019-01-30 小通 生物通

近日,东京大学、东京女子医科大学和理化研究所(RIKEN)的研究人员首次展示了一种柔软的电子传感器,能够在不影响其行为的情况下密切监控心肌细胞。这项成果发表在《Nature Nanotechnology》杂志上。

近日,东京大学、东京女子医科大学和理化研究所(RIKEN)的研究人员首次展示了一种柔软的电子传感器,能够在不影响其行为的情况下密切监控心肌细胞。这项成果发表在《Nature Nanotechnology》杂志上。

(图片来自原文)

每个人都有一颗跳动的心脏。然而,这种重要的器官并不总是完美的,有时也会出点问题。如何通过电子设备长时间监控心肌细胞功能,而不影响其自然运动,这仍然是一个挑战。

近日,东京大学、东京女子医科大学和理化研究所(RIKEN)的研究人员首次展示了一种柔软的电子传感器,能够在不影响其行为的情况下密切监控心肌细胞。这项成果发表在《Nature Nanotechnology》杂志上。研究人员认为,该设备还有助于其他细胞、器官和药物的研究。

东京大学的Sunghoon Lee表示:“人们在研究心肌细胞时,总是在坚硬的培养皿上培养它们,并附上硬质的传感器探针。当心肌细胞跳动时,这些设备往往会造成阻碍,因此观察结果并不能很好地反映事实。”他也是这篇论文的第一作者。

在这项研究中,东京女子医科大学的研究人员提供了由人类诱导多能干细胞(iPSC)衍生而来的心肌细胞培养物。培养基是一种称为纤维蛋白凝胶的柔软材料。Lee等人将超柔软的纳米网状传感器置于细胞培养物的顶部。这个过程很复杂,需要在适当的时间去除和添加液体培养基。

“精细的网状传感器很难完美地放置。这也反映了制造时的精致手艺,”Lee谈道。“整个网状传感器所用的聚氨酯线条比人类头发还要细十倍。因此,我需要多次练习,并十分耐心。”

在制造这些传感器时,人们首先用一种称为电纺的工艺将超细的聚氨酯线条挤在一块薄片上,然后用二甲苯来包被这种蜘蛛网状的薄片,从而起到加固作用。之后,他们去除某些位置的二甲苯并镀上金,以便形成传感器探针。其他位置的二甲苯隔离探针,使其信号不会相互干扰。

利用三个探头,传感器读取三个位置的电压。这种读数是医生熟悉的,因为它本质上是心电图。由于有多个探针,研究人员可以观察到信号的传播,这些信号由细胞产生并触发细胞跳动。在评估药物对心脏的作用时,这些信号非常重要。

研究人员表示,这种纳米网状传感器能够在液体环境中维持可靠的操作,连续96小时记录心肌细胞的动作电位,而不存在网状设备的明显降解,或心肌细胞的损伤。

“药物需要进入细胞样本,而固体传感器会使药物分布不均或阻止它接触样本,因此我们采用了多孔的纳米网状传感器,”Lee谈道。“无论是用在药物研究、心脏监控还是为了减少动物实验,我都迫不及待地想看到这种设备在现场的使用。”

原始出处:Lee S1, Sasaki D2, Kim D1, et al. Ultrasoft electronics to monitor dynamically pulsing cardiomyocytes. Nat Nanotechnol. 2018 Dec 31.

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=2041207, encodeId=be94204120e74, content=<a href='/topic/show?id=4697586e85a' target=_blank style='color:#2F92EE;'>#新设备#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58678, encryptionId=4697586e85a, topicName=新设备)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=21015, createdName=heli0118, createdTime=Sun Feb 10 10:08:00 CST 2019, time=2019-02-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883573, encodeId=d32818835e3ca, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Thu Jan 31 18:08:00 CST 2019, time=2019-01-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1652319, encodeId=ffbf165231944, content=<a href='/topic/show?id=13d01e24509' target=_blank style='color:#2F92EE;'>#TEC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, 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=Tue Oct 15 01:08:00 CST 2019, time=2019-10-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=359658, encodeId=e967359658a8, content=学习了,谢谢作者分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3xJXLtMtt5B40XXuPjn9xn1rBhrM6fHLkX1hI86ZoWoPJkgDkZuJNKkBfBHOcRd1fAdezg7JlHNOokohdAp3WkI/0, createdBy=32c81964262, createdName=1e145228m78(暂无匿称), createdTime=Thu Jan 31 10:34:38 CST 2019, time=2019-01-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=359635, encodeId=d4f6359635a4, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/vi_32/iaAVWEsIJUkA1ITy3uL0lhHUhyaJibWgFtH4KbJuaLbY2WUK33jgCFyoZ8Eqx7eE7hCuZhytc1C5GRrfjVXN8lYg/0, createdBy=fcb82149579, createdName=183****7028, createdTime=Thu Jan 31 08:56:09 CST 2019, time=2019-01-31, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=2041207, encodeId=be94204120e74, content=<a href='/topic/show?id=4697586e85a' target=_blank style='color:#2F92EE;'>#新设备#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58678, encryptionId=4697586e85a, topicName=新设备)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=21015, createdName=heli0118, createdTime=Sun Feb 10 10:08:00 CST 2019, time=2019-02-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883573, encodeId=d32818835e3ca, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Thu Jan 31 18:08:00 CST 2019, time=2019-01-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1652319, encodeId=ffbf165231944, content=<a href='/topic/show?id=13d01e24509' target=_blank style='color:#2F92EE;'>#TEC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, 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=Tue Oct 15 01:08:00 CST 2019, time=2019-10-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=359658, encodeId=e967359658a8, content=学习了,谢谢作者分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3xJXLtMtt5B40XXuPjn9xn1rBhrM6fHLkX1hI86ZoWoPJkgDkZuJNKkBfBHOcRd1fAdezg7JlHNOokohdAp3WkI/0, createdBy=32c81964262, createdName=1e145228m78(暂无匿称), createdTime=Thu Jan 31 10:34:38 CST 2019, time=2019-01-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=359635, encodeId=d4f6359635a4, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/vi_32/iaAVWEsIJUkA1ITy3uL0lhHUhyaJibWgFtH4KbJuaLbY2WUK33jgCFyoZ8Eqx7eE7hCuZhytc1C5GRrfjVXN8lYg/0, createdBy=fcb82149579, createdName=183****7028, createdTime=Thu Jan 31 08:56:09 CST 2019, time=2019-01-31, status=1, ipAttribution=)]
    2019-01-31 liye789132251
  3. [GetPortalCommentsPageByObjectIdResponse(id=2041207, encodeId=be94204120e74, content=<a href='/topic/show?id=4697586e85a' target=_blank style='color:#2F92EE;'>#新设备#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58678, encryptionId=4697586e85a, topicName=新设备)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=21015, createdName=heli0118, createdTime=Sun Feb 10 10:08:00 CST 2019, time=2019-02-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883573, encodeId=d32818835e3ca, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Thu Jan 31 18:08:00 CST 2019, time=2019-01-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1652319, encodeId=ffbf165231944, content=<a href='/topic/show?id=13d01e24509' target=_blank style='color:#2F92EE;'>#TEC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, 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=Tue Oct 15 01:08:00 CST 2019, time=2019-10-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=359658, encodeId=e967359658a8, content=学习了,谢谢作者分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3xJXLtMtt5B40XXuPjn9xn1rBhrM6fHLkX1hI86ZoWoPJkgDkZuJNKkBfBHOcRd1fAdezg7JlHNOokohdAp3WkI/0, createdBy=32c81964262, createdName=1e145228m78(暂无匿称), createdTime=Thu Jan 31 10:34:38 CST 2019, time=2019-01-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=359635, encodeId=d4f6359635a4, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/vi_32/iaAVWEsIJUkA1ITy3uL0lhHUhyaJibWgFtH4KbJuaLbY2WUK33jgCFyoZ8Eqx7eE7hCuZhytc1C5GRrfjVXN8lYg/0, createdBy=fcb82149579, createdName=183****7028, createdTime=Thu Jan 31 08:56:09 CST 2019, time=2019-01-31, status=1, ipAttribution=)]
    2019-10-15 shock_melon
  4. [GetPortalCommentsPageByObjectIdResponse(id=2041207, encodeId=be94204120e74, content=<a href='/topic/show?id=4697586e85a' target=_blank style='color:#2F92EE;'>#新设备#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58678, encryptionId=4697586e85a, topicName=新设备)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=21015, createdName=heli0118, createdTime=Sun Feb 10 10:08:00 CST 2019, time=2019-02-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883573, encodeId=d32818835e3ca, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Thu Jan 31 18:08:00 CST 2019, time=2019-01-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1652319, encodeId=ffbf165231944, content=<a href='/topic/show?id=13d01e24509' target=_blank style='color:#2F92EE;'>#TEC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, 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=Tue Oct 15 01:08:00 CST 2019, time=2019-10-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=359658, encodeId=e967359658a8, content=学习了,谢谢作者分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3xJXLtMtt5B40XXuPjn9xn1rBhrM6fHLkX1hI86ZoWoPJkgDkZuJNKkBfBHOcRd1fAdezg7JlHNOokohdAp3WkI/0, createdBy=32c81964262, createdName=1e145228m78(暂无匿称), createdTime=Thu Jan 31 10:34:38 CST 2019, time=2019-01-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=359635, encodeId=d4f6359635a4, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/vi_32/iaAVWEsIJUkA1ITy3uL0lhHUhyaJibWgFtH4KbJuaLbY2WUK33jgCFyoZ8Eqx7eE7hCuZhytc1C5GRrfjVXN8lYg/0, createdBy=fcb82149579, createdName=183****7028, createdTime=Thu Jan 31 08:56:09 CST 2019, time=2019-01-31, status=1, ipAttribution=)]
    2019-01-31 1e145228m78(暂无匿称)

    学习了,谢谢作者分享!

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=2041207, encodeId=be94204120e74, content=<a href='/topic/show?id=4697586e85a' target=_blank style='color:#2F92EE;'>#新设备#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58678, encryptionId=4697586e85a, topicName=新设备)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=21015, createdName=heli0118, createdTime=Sun Feb 10 10:08:00 CST 2019, time=2019-02-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883573, encodeId=d32818835e3ca, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Thu Jan 31 18:08:00 CST 2019, time=2019-01-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1652319, encodeId=ffbf165231944, content=<a href='/topic/show?id=13d01e24509' target=_blank style='color:#2F92EE;'>#TEC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, 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=Tue Oct 15 01:08:00 CST 2019, time=2019-10-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=359658, encodeId=e967359658a8, content=学习了,谢谢作者分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3xJXLtMtt5B40XXuPjn9xn1rBhrM6fHLkX1hI86ZoWoPJkgDkZuJNKkBfBHOcRd1fAdezg7JlHNOokohdAp3WkI/0, createdBy=32c81964262, createdName=1e145228m78(暂无匿称), createdTime=Thu Jan 31 10:34:38 CST 2019, time=2019-01-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=359635, encodeId=d4f6359635a4, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/vi_32/iaAVWEsIJUkA1ITy3uL0lhHUhyaJibWgFtH4KbJuaLbY2WUK33jgCFyoZ8Eqx7eE7hCuZhytc1C5GRrfjVXN8lYg/0, createdBy=fcb82149579, createdName=183****7028, createdTime=Thu Jan 31 08:56:09 CST 2019, time=2019-01-31, status=1, ipAttribution=)]
    2019-01-31 183****7028

    学习

    0

相关资讯

Prostate Cancer P D:约翰·霍普金斯积极监控群体PTEN状态评估

格林森评分6(GS6)前列腺癌男性中,那些最初通过积极监控(AS)来进行治疗的多达一半的患者都需要确定性的治疗,通常是由于跟踪调查期间肿瘤等级的重新界定。最近,有研究人员调查了患有GS6癌症且进行AS的男性患者,活检时的PTEN状态和随后的临床病理结果。研究人员在约翰·霍普金斯AS群体中进行了案例-对照研究,这些患者诊断的活检组织可以用于免疫组化(IHC)染色,并在所有的患者中,利用遗传学确定的方

15省医保增补,6个大品种值得关注

药品能否进入医保目录是影响其销售规模大小的一个重要因素。原因在于医保药品具备优先纳入临床路径和打包付费治疗方案的资质,也是医疗机构药品集中采购的主要范围。尤其是在基层医疗机构,几乎仅限于使用医保药品,而鉴于药品集中采购目录的延续性,如果错过某省某一期的集中采购,该品种可能面临长期无法进入医院市场的窘境。

又有一批药品,被列为辅助用药

昨日(6月27日),山东省日照市发布公示2018年度公立医院辅助性、营养性药品重点监控目录。

又有33款高值耗材,被重点监控

又有33款高值医用耗材被重点监控,涉及48家医院。

辅助用药定义明确,中成药、免疫调节剂等13类药品上榜!

辅助用药作为“万金油”游走于各大科室,超剂量、超适应症使用屡见不鲜的历史即将终结。可以预见,在从上到下层层推进之后,辅助用药四处碰壁的日子越来越近了。

244家医院耗材被重点监控,费用异常全省曝光!

近几年,各省对医院的考核和监管可谓是越来越严,特别是对公立医院耗材试剂的使用以及医疗费用的不合理增长上的监控,更是“严”上了一个新的台阶——除了要将费用异常的医院全省通报外,还要求医院全网公开医疗费用信息!