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相关概念视频

Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

6.9K
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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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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相关实验视频

Updated: Jun 12, 2025

From Fast Fluorescence Imaging to Molecular Diffusion Law on Live Cell Membranes in a Commercial Microscope
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From Fast Fluorescence Imaging to Molecular Diffusion Law on Live Cell Membranes in a Commercial Microscope

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交叉相关性增加了基于扩散的超分辨率光学波动成像中的采样.

Jeanpun Antarasen1, Benjamin Wellnitz1, Stephanie N Kramer1

  • 1Department of Physics, Case Western Reserve University, Cleveland, Ohio 44106, United States.

Chemical & biomedical imaging
|September 27, 2024
PubMed
概括
此摘要是机器生成的。

这项研究证明了扩散粒子的交叉相关性分析,使得超高分辨率成像成为可能. 该技术从生物和软材料的光学数据中提取纳米级的动态和结构.

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A Fluorescence Fluctuation Spectroscopy Assay of Protein-Protein Interactions at Cell-Cell Contacts
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相关实验视频

Last Updated: Jun 12, 2025

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From Fast Fluorescence Imaging to Molecular Diffusion Law on Live Cell Membranes in a Commercial Microscope

Published on: October 9, 2014

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A Fluorescence Fluctuation Spectroscopy Assay of Protein-Protein Interactions at Cell-Cell Contacts
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A Fluorescence Fluctuation Spectroscopy Assay of Protein-Protein Interactions at Cell-Cell Contacts

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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:

  • 光学成像技术的使用.
  • 超高分辨率显微镜的使用方法
  • 相关性信号处理的相关性信号处理.

背景情况:

  • 通过对应信号处理,可以实现3D光学数据 (x,y,t) 的超高分辨率成像.
  • 第二阶交叉相关性 (XC2) 允许使用静态/闪发射器进行超分辨率,但不能使用扩散发射器.

研究的目的:

  • 用分析和数值来证明扩散粒子的交叉相关性分析.
  • 扩展光相关谱超分辨率光学波动成像 (fcsSOFI) 使用交叉相关性同时进行动态和结构信息提取.
  • 解决生物和软材料中的纳米级动态和结构.

主要方法:

  • 对扩散粒子的交叉相关性分析的分析和数值演示.
  • 使用交叉相关性作为fcsSOFI内的后处理计算技术.
  • 将模拟和实验光学 (x,y,t) 数据交叉相关.

主要成果:

  • 交叉相关性分析是有效的扩散粒子,实现超分辨率.
  • fcsSOFI与交叉相关性同时提取动态和结构信息.
  • 交叉相关性保持了超级分辨率,并增加了采样率,减少了空间信息中的别名.

结论:

  • 交叉相关性分析是一种可行的方法,用于扩散粒子的超分辨率成像.
  • 通过交叉相关性增强的fcsSOFI是纳米级动力学和结构分析的强大工具.
  • 这种方法适用于与生物和软材料相关的样本.