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相关概念视频

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: Jun 8, 2025

Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing
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Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing

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快速和光效的远程聚焦用于体积电压成像.

Urs L Böhm1,2, Benjamin Judkewitz3

  • 1Einstein Center for Neurosciences, Charité - Universitätsmedizin Berlin, Berlin, Germany.

Nature communications
|November 5, 2024
PubMed
概括

我们开发了一种新的远程聚焦技术,用于更快,更有效的电压成像刺激细胞. 这种方法可以在体内高速并行记录神经元活动.

科学领域:

  • 神经科学是一个神经科学.
  • 生物医学工程 生物医学工程
  • 在光学成像系统中,光学成像

背景情况:

  • 电压成像允许在神经元等可刺激细胞中的电活动进行非侵入性记录.
  • 大细胞群的高速并行成像,特别是3D卷,仍然是一个挑战.
  • 现有的远程聚焦技术对于要求高的应用程序来说,往往太慢或光效低.

研究的目的:

  • 开发一种新的远程聚焦技术,用于高速,高效的体积电压成像.
  • 为了克服当前远程聚焦方法的速度和光效的局限性.
  • 能够同时记录大量神经元的电活动.

主要方法:

  • 引入了翻转图像远程聚焦 (FIRF),这是一个新的远程聚焦技术.
  • 与传统的光束分割方法相比,FIRF的光效率翻了一番.
  • 结合FIRF与光片成像用于体积电压成像.

主要成果:

  • 实现了500体积/秒的高速体积电压成像.
  • 证明了来自100多个自发活跃神经元的并行记录.
  • 成功地将该技术应用于斑马鱼脊髓中的电压成像.

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High-speed Particle Image Velocimetry Near Surfaces

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相关实验视频

Last Updated: Jun 8, 2025

Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing
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Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing

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Direct Imaging of Laser-driven Ultrafast Molecular Rotation
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Direct Imaging of Laser-driven Ultrafast Molecular Rotation

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High-speed Particle Image Velocimetry Near Surfaces
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结论:

  • 翻转图像远程聚焦显著提高了电压成像的速度和光效.
  • 这种技术使得在体内神经元活动的前所未有的并行记录成为可能.
  • 为研究神经回路和大脑功能提供了一个强大的新工具.