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Overview of Exosomes01:36

Overview of Exosomes

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Exosomes are stable, lipid bilayer-enclosed vesicles capable of crossing biological barriers. They can carry a wide range of molecules required for intercellular communication. Once exosomes are released from the cell where they originated, they enter a recipient cell through various pathways such as fusion, receptor-mediated endocytosis, macropinocytosis, and phagocytosis.
Stahl et al. discovered exosomes in 1983, but the exosomes were initially considered waste products released from the...
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相关实验视频

Updated: May 31, 2025

Using Nanoplasmon-Enhanced Scattering and Low-Magnification Microscope Imaging to Quantify Tumor-Derived Exosomes
09:30

Using Nanoplasmon-Enhanced Scattering and Low-Magnification Microscope Imaging to Quantify Tumor-Derived Exosomes

Published on: May 24, 2019

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表面增强的拉曼散射 (SERS) 用于外体检测.

Biqing Chen1, Xiaohong Qiu1

  • 1Gynaecology and Obstetrics, The Second Affiliated Hospital of Harbin Medical University, Harbin Medical University, Heilongjiang 150081 PR China.

Clinica chimica acta; international journal of clinical chemistry
|January 22, 2025
PubMed
概括

表面增强拉曼散射 (SERS) 提供了一种敏感的方法来检测外体,这对于早期疾病诊断至关重要. 这项技术克服了传统方法的局限性,使得在没有大量样本的情况下能够更快,更准确地检测.

科学领域:

  • 生物技术是生物技术.
  • 纳米技术纳米技术
  • 分析化学 分析化学

背景情况:

  • 外体是生物流体中发现的纳米级细胞外囊泡,携带用于早期疾病检测的相关分子.
  • 目前的外体检测方法面临诸如大样本体积要求和复杂分析等挑战.
  • 传统方法的局限性阻碍了基于外体组的诊断的临床应用.

研究的目的:

  • 审查表面增强拉曼散射 (SERS) 对于外体检测的应用.
  • 突出SERS在克服外体组分析当前挑战方面的潜力.
  • 探索SERS实时,非侵入性外体组评估,用于早期疾病诊断.

主要方法:

  • 对SERS技术和外体检测现有文献的审查.
  • 分析SERS的光子特性和生物标记物识别的高灵敏度.
  • 专注于SERS的无标签和最小样本体积外体组分析能力.

主要成果:

  • 塞尔斯为外体检测提供了一个敏感和特定的平台.
  • 该技术可以在没有大量样本丰富或表型分析的情况下进行检测.
  • 通过SERS,可以实时,非侵入性地评估外体.
关键词:
生物修饰是一种生物修饰.检测 检测 检测 检测 检测诊断 诊断 诊断 诊断 诊断外基因组是外基因组的组成部分.表面增强的拉曼散射 (SERS)

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结论:

  • 基于SERS的外体检测对促进早期疾病诊断具有重大前景.
  • 这项技术可以克服现有的局限性,从而实现更有效的诊断分析.
  • 通过增强的诊断,SERS有助于个性化医疗和改善患者的治疗结果.