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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...
2.6K

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相关实验视频

Updated: Jan 15, 2026

Sample Drift Correction Following 4D Confocal Time-lapse Imaging
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对于单分子定位显微镜的快速和强大的漂移校正.

Mengdi Hou1,2, Jianyu Yang1, Mingjie Yang1

  • 1Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Institute of Applied Physics and School of Physics, Nankai University, Tianjin, China.

Nature communications
|October 10, 2025
PubMed
概括
此摘要是机器生成的。

单分子局部化显微镜 (SMLM) 漂移校正得到了NP-Cloud的改进,这是一个新的方法. 这种快速而强大的技术提高了SMLM成像的分辨率和吞吐量.

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相关实验视频

Last Updated: Jan 15, 2026

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Three-dimensional Super Resolution Microscopy of F-actin Filaments by Interferometric PhotoActivated Localization Microscopy iPALM
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科学领域:

  • 生物物理学的生物物理.
  • 光学显微镜的使用方法
  • 纳米技术 纳米技术

背景情况:

  • 单分子定位显微镜 (SMLM) 需要在成像过程中精确纠正样本漂移.
  • 现有的SMLM漂移校正方法通常是缓慢和不可靠的,阻碍了分辨率和吞吐量.

研究的目的:

  • 引入NP-Cloud,这是一个新的,快速和强大的方法来纠正SMLM中的样本漂移.
  • 为了证明NP-Cloud在提高SMLM数据保真性和速度方面的有效性.

主要方法:

  • 开发了NP-Cloud,通过在SMLM数据段内配对最近的分子.
  • 在一个小的搜索半径内计算分子位移,以减少计算负载.
  • 利用超局部化分子的持续估值位置来准确估计漂移.

主要成果:

  • 在使用模拟和实验SMLM数据的3D漂移校正中,NP-Cloud表现出卓越的稳定性和保真性.
  • 与单一引用方法相比,实现的速度增加了100倍以上,与冗余交叉引用方法相比,增加了104倍以上.
  • 在几秒钟内为各种样本提供了出色的漂移校正.

结论:

  • 在SMLM漂移修正方面,NP-Cloud提供了显著的进步.
  • 该方法提供了一个快速,稳固和实用的解决方案,提高了SMLM的分辨率和吞吐量.
  • 在各种生物样本中提供高性能SMLM成像.