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相关概念视频

Overview of Microscopy Techniques01:22

Overview of Microscopy Techniques

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The early pioneers of microscopy opened a window into the invisible world of microorganisms. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes that leveraged nonvisible light, such as fluorescence microscopy that uses an ultraviolet light source and electron microscopy that uses short-wavelength electron beams. These advances significantly improved magnification, image resolution, and contrast. By comparison, the...
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Hollow Microneedle-based Sensor for Multiplexed Transdermal Electrochemical Sensing
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通过皮肤进行的最小侵入性光学多重体检测蛋白质生物标记物通过纳米柱阵列嵌入式微针.

Adva Raz1, Hila Gubi2, Adam Cohen1

  • 1Department of Materials Science and Engineering, The Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv 69978, Israel.

ACS nano
|October 28, 2024
PubMed
概括

这项研究引入了一种新的微针生物传感器,用于快速,最小侵入性地检测毛细血管血液中的生物标志物. 这种无血液抽取平台为早期疾病诊断提供了高灵敏度和特异性.

关键词:
生物标志物检测 生物标志物检测没有流血,没有流血.这是一种微创的侵入性疾病.纳米柱子阵列是一个阵列.通过皮肤通过皮肤.

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科学领域:

  • 生物医学工程 生物医学工程
  • 纳米技术 纳米技术
  • 诊断 诊断 诊断 诊断

背景情况:

  • 目前的生物标志物检测依赖于侵入性静脉血液抽取,这是耗时和复杂的.
  • 使用微针进行毛细血管血液分析的最小侵入性生物传感器正在为护理点诊断产生兴趣.

研究的目的:

  • 开发一种基于微针的新型生物传感器,用于毛细血管血液中生物标志物的直接光学检测和定量.
  • 展示一种用于多重皮内生物标志物检测的制造方法,而无需提取血液.

主要方法:

  • 用垂直对齐的纳米柱阵列嵌入微针的制造.
  • 纳米柱阵列的区域选择性化学修饰用于抗体-抗原结合.
  • 通过抗体-抗原相互作用在毛细血管血液中直接光学检测蛋白质生物标记物.

主要成果:

  • 在微针元素中成功制造了多检测区纳米柱阵列.
  • 证明了蛋白质生物标记物的同时,超快速和高度敏感的检测.
  • 在初步的体外和体外研究中,在初步的体外和体外研究中,获得了低皮科摩拉 (pM) 灵敏度和高特异性.

结论:

  • 开发的皮肤内生物传感器平台使得无需提取血液,可以在皮肤内取样并检测生物标志物.
  • 这项技术为敏感,特定和快速的医疗诊断提供了一个有前途的方法.
  • 该平台促进了具有优异性能的临床相关蛋白质生物标记物的多重检测.