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相关概念视频

Super-resolution Fluorescence Microscopy01:37

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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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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 16, 2025

Sample Drift Correction Following 4D Confocal Time-lapse Imaging
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开源的3D活性样本稳定器用于光显微镜.

Sanket Patil1, Giuseppe Vicidomini2, Eli Slenders2

  • 1Molecular Microscopy and Spectroscopy (MMS), Istituto Italiano di Tecnologia, Genoa, Italy; Department of Informatics, Bioengineering, Robotics and Systems Engineering (DIBRIS), University of Genoa, Genoa, Italy.

Biophysical reports
|April 20, 2025
PubMed
概括
此摘要是机器生成的。

本研究介绍了使用超分辨率显微镜的信托标记器的3D主动样本稳定系统. 开源系统确保了纳米尺度稳定性数小时,提高了活细胞成像的可访问性.

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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
  • 光学工程是指光学工程.

背景情况:

  • 超分辨率显微镜提供纳米级分辨率,但需要特殊的样本稳定性.
  • 长时间的成像时间,特别是在活细胞研究中,受到样本漂移的挑战.
  • 来自不稳定的工件可以危及高分辨率成像中的数据解释.

研究的目的:

  • 为长期超分辨率显微镜开发一种可访问和有效的3D主动样品稳定系统.
  • 为了在长时间内实现高分辨率的活细胞成像,而不会损害数据完整性.
  • 为科学界提供可定制的开源解决方案.

主要方法:

  • 使用现成的光学和光子元件设计了一个3D活跃样本稳定系统.
  • 实时跟踪信托标记被用于监控和纠正样本运动.
  • 为系统控制和数据采集开发了一个开源的Python软件包.

主要成果:

  • 该系统在横向和轴向方向实现了样本运动的标准偏差在1nm以内.
  • 稳定的成像维持了从几个小时到几个小时的时间.
  • 该系统证明了与超高分辨率,共聚焦和广场显微镜技术的兼容性.

结论:

  • 开发的3D主动样品稳定系统显著提高了长时间超分辨率显微镜的可访问性.
  • 该系统的开源性质和共同组件的使用促进了广泛的采用和定制.
  • 这项技术可以进行长达数小时的活细胞成像实验,具有前所未有的稳定性和分辨率.