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相关概念视频

Electron Microscope Tomography and Single-particle Reconstruction01:07

Electron Microscope Tomography and Single-particle Reconstruction

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Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
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Array tomography: trails to discovery.

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Updated: Jun 17, 2025

Array Tomography Workflow for the Targeted Acquisition of Volume Information using Scanning Electron Microscopy
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快速-EM阵列断层扫描:多束体积电子显微镜的工作流程.

Arent J Kievits1, B H Peter Duinkerken2, Ryan Lane1

  • 1Department of Imaging Physics, Delft University of Technology, Delft, The Netherlands.

Methods in microscopy
|August 9, 2024
PubMed
概括
此摘要是机器生成的。

一种新型的多束扫描传输电子显微镜FAST-EM加速了生物样本的3D纳米级成像. 这种新的工作流允许在实际的时间框架内采集高分辨率,大量的超结构数据.

关键词:
这就是FAST-EM.阵列断层扫描 阵列断层扫描自动细分自动细分自动细分图像处理是图像处理的过程.卷电子显微镜的体积电子显微镜.

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相关实验视频

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Imaging Replicative Domains in Ultrastructurally Preserved Chromatin by Electron Tomography
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科学领域:

  • 细胞生物学 细胞生物学
  • 显微镜的使用方法
  • 生物物理学的生物物理.

背景情况:

  • 了解复杂的生物过程需要高分辨率的细胞和组织的3D纳米图像.
  • 传统的电子显微镜 (EM) 提供了必要的分辨率,但其吞吐量低,限制了大体积成像.
  • 克服吞吐量限制对于推进使用EM的生物研究至关重要.

研究的目的:

  • 为高通量体积电子显微镜 (EM) 引入一种新的工作流.
  • 介绍FAST-EM,一个用于并行数据采集的多束扫描传输电子显微镜.
  • 为了证明FAST-EM用于重建大型高分辨率3D超结构数据集的能力.

主要方法:

  • 开发和实施FAST-EM,一个64束扫描传输电子显微镜.
  • 使用光学检测来将信号与平行电子束分开.
  • 建立一个工作流程,并行获取和3D重建超结构数据.

主要成果:

  • 通过使用64个电子束,证明了超结构数据的并行获取.
  • 成功地对多个生物样本进行了3D重建.
  • 实现了高分辨率和对比度的大型重建体积.

结论:

  • FAST-EM工作流显著提高了体积EM的吞吐量.
  • 在可行的时间框架内实现生物超结构的高分辨率,大规模3D成像.
  • 解决了生物研究当前EM技术的关键局限性.