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相关概念视频

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

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Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
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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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Fluorescence and Phosphorescence: Instrumentation01:25

Fluorescence and Phosphorescence: Instrumentation

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Fluorometers and spectrofluorometers are two types of instruments used for measuring molecular fluorescence. These instruments differ in how they select excitation and emission wavelengths and the type of light sources they utilize. Fluorometers use absorption interference filters to choose excitation and emission wavelengths. The excitation source in a fluorometer is typically a low-pressure mercury vapor lamp that emits intense lines distributed throughout the ultraviolet and visible regions.
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相关实验视频

Updated: Jun 9, 2025

Confocal Microscopy Reveals Cell Surface Receptor Aggregation Through Image Correlation Spectroscopy
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Confocal Microscopy Reveals Cell Surface Receptor Aggregation Through Image Correlation Spectroscopy

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阶段敏感光图像相关性光谱学

Andrew H A Clayton1

  • 1Optical Sciences Centre, Department of Physics and Astronomy, School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Hawthorn, Melbourne, VIC 3122, Australia.

International journal of molecular sciences
|October 26, 2024
PubMed
概括
此摘要是机器生成的。

阶段敏感光图像相关谱学揭示了异质生命周期如何影响物体密度. 这种先进的成像技术分析了在不同探测器相位设置下获得的光图像中的空间相关性.

关键词:
飞行员飞行员的飞行员图像相关性光谱学 图像相关性光谱学膜探测器探测器的使用方法

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Dual-Color Fluorescence Cross-Correlation Spectroscopy to Study Protein-Protein Interaction and Protein Dynamics in Live Cells
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Cortical Actin Flow in T Cells Quantified by Spatio-temporal Image Correlation Spectroscopy of Structured Illumination Microscopy Data
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Cortical Actin Flow in T Cells Quantified by Spatio-temporal Image Correlation Spectroscopy of Structured Illumination Microscopy Data

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科学领域:

  • 生物物理学的生物物理.
  • 显微镜的使用方法
  • 频谱学是一种光谱学.

背景情况:

  • 光终身成像显微镜 (FLIM) 提供了对分子相互作用和环境的洞察.
  • 频域FLIM使用相位移动来确定光寿命.

研究的目的:

  • 描述相位敏感光图像相关谱学 (ps-FICS) 的理论.
  • 调查生命周期异质性如何影响光物体相位依赖密度.

主要方法:

  • 应用图像相关谱法 (空间自相关) 连续光图像.
  • 在 homo-dyne 频域 FLIM 中在不同探测器相位设置上获取图像.
  • 模拟各种生命周期分布以分析相位依赖物体密度.

主要成果:

  • 模拟表明,光寿命的异质性会影响物体的相位密度.
  • 开发的ps-FICS方法可以区分不同的生命周期分布.

结论:

  • 阶段敏感的光图像相关谱法是分析生命周期异质性的可行方法.
  • 这种技术可以应用于生物样本,如宫癌细胞,进行详细分析.