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相关概念视频

Immunogold Electron Microscopy01:20

Immunogold Electron Microscopy

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Immunoelectron microscopy utilizes immunogold labeling of endogenous proteins with specific antibodies to detect and localize these proteins in cells and tissues. The procedure provides insights into the distribution and quantification of protein under different stimulation conditions offering clues about their functions. Conjugating highly electron-dense gold particles with primary or secondary antibodies allow antigen detection on and within cells, with high resolution and specificity.
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Enzyme-Linked Immunosorbent Assay01:33

Enzyme-Linked Immunosorbent Assay

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In 1971, Peter Perlman and Eva Engvall developed an Enzyme-linked immunosorbent assay (ELISA or EIA). ELISA differs from western blot in that the assays are conducted in microtiter plates or in vivo rather than on an absorbent membrane.
There are many different types of ELISAs, but they all involve an antibody molecule whose constant region binds an enzyme, leaving the variable region free to bind its specific antigen.  Enzyme-substrate reaction allows the antigen to be visualized or...
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相关实验视频

Updated: Mar 17, 2026

ELIME Enzyme Linked Immuno Magnetic Electrochemical Method for Mycotoxin Detection
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ELIME Enzyme Linked Immuno Magnetic Electrochemical Method for Mycotoxin Detection

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使用酶性金属化的功能性细胞免疫的电子检测.

Yuvraj Rallapalli1, Josiah Rudge1, Madeline Hoyle1

  • 1Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States.

ACS omega
|March 16, 2026
PubMed
概括
此摘要是机器生成的。

使用阻抗细胞测量 (EPIC) 的电子表型为免疫细胞分析提供了一个低成本,可扩展的替代方案. 这种新的电子方法在没有光标签的情况下检测细胞表面标记物和细胞因子分泌,有助于在资源有限的环境中进行诊断.

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Bacterial Detection & Identification Using Electrochemical Sensors
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Bacterial Detection & Identification Using Electrochemical Sensors

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科学领域:

  • 生物医学工程 生物医学工程
  • 免疫学 免疫学 免疫学
  • 分析化学 分析化学

背景情况:

  • 准确的单细胞免疫功能检测对于诊断和研究至关重要.
  • 像流细胞测量这样的传统方法受到复杂的仪器仪表和光标签的限制,这阻碍了在资源较差的环境中使用.

研究的目的:

  • 开发一种用于免疫细胞分析的新型电子方法.
  • 在资源有限的环境中克服光分析的局限性.

主要方法:

  • 开发了使用阻抗细胞计 (EPIC) 平台的电子表型.
  • 结合抗体导向的酶性金属化与多频阻抗分析.
  • 使用微尺度3D打印的塑料孔口进行电子检测.

主要成果:

  • 通过使用CD45向金属化,EPIC为Jurkat细胞和初级人类外周血液单核细胞生成了不同的阻抗信号.
  • 与细胞表面金属化相关的阻抗变化.
  • 检测到IFN-γ分泌与阻抗读数匹配流细胞计结果.

结论:

  • EPIC允许敏感的电子免疫分析.
  • 作为一种可扩展的,低成本的替代品,EPIC显示了基于光的测试的潜力.
  • 支持治疗点细胞免疫诊断的潜力.