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相关概念视频

Protein Dynamics in Living Cells01:19

Protein Dynamics in Living Cells

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Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...
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Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

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Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
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相关实验视频

Updated: Jul 26, 2025

Single-Molecule Tracking Microscopy - A Tool for Determining the Diffusive States of Cytosolic Molecules
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单分子追踪和成像技术的最新进展

Trung Duc Nguyen1, Yuan-I Chen1, Limin H Chen1

  • 1Department of Biomedical Engineering, University of Texas at Austin, Austin, Texas, USA;

Annual review of analytical chemistry (Palo Alto, Calif.)
|June 14, 2023
PubMed
概括

单分子追踪允许实时观察生理条件下的生物分子. 先进的3D跟踪技术揭示了复杂生物系统中的分子路径和作用.

科学领域:

  • 生物物理学的生物物理.
  • 分子生物学分子生物学
  • 细胞生物学 细胞生物学

背景情况:

  • 单分子检测提供了超越传统组合方法的洞察力.
  • 在生理条件下实时观察生物分子对于理解生物系统至关重要.
  • 单分子追踪的进步使分子动态的详细分析成为可能.

研究的目的:

  • 审查单分子追踪和成像技术.
  • 要突出先进的三维 (3D) 追踪系统.
  • 讨论数据分析和该领域的未来方向.

主要方法:

  • 综述各种单分子追踪和成像技术.
  • 重点是先进的3D跟踪系统,具有高时空分辨率.
  • 从轨迹中提取可观测数据的讨论.

主要成果:

  • 单分子追踪揭示了不同的生物分子通路和信号作用.
  • 先进的3D跟踪系统为组织模型提供超高分辨率和足够的工作深度.
  • 介绍了单分子聚类分析的方法.

结论:

关键词:
集群分析分析集群分析反控制跟踪跟踪的反控制多重平面显微镜学的多重平面显微镜点差函数的工程是指点差函数的工程.单分子追踪系统运行轨迹分析的方法

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A Protocol for Real-time 3D Single Particle Tracking
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  • 单分子追踪为生物分子功能提供了前所未有的洞察力.
  • 先进的3D跟踪对于研究组织模型等复杂环境中的分子至关重要.
  • 进一步发展分析方法将提高对生物过程的理解.