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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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Transmission Electron Microscopy01:15

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In 1931, physicist Ernst Ruska—building on the idea that magnetic fields can direct an electron beam just as lenses can direct a beam of light in an optical microscope—developed the first prototype of the electron microscope. This development led to the development of the field of electron microscopy. In the transmission electron microscope (TEM), electrons are produced by a hot tungsten element and accelerated by a potential difference in an electron gun, which gives them up to 400...
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相关实验视频

Updated: Jul 12, 2025

Sample Preparation and Experimental Design for In Situ Multi-Beam Transmission Electron Microscopy Irradiation Experiments
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Sample Preparation and Experimental Design for In Situ Multi-Beam Transmission Electron Microscopy Irradiation Experiments

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方形梁用于TEM中最佳地.

Eugene Yd Chua1, Lambertus M Alink1, Mykhailo Kopylov1

  • 1Simons Electron Microscopy Center, New York Structural Biology Center, New York, NY 10027.

bioRxiv : the preprint server for biology
|October 24, 2023
PubMed
概括
此摘要是机器生成的。

用于传输电子显微镜的新型正方形电子束使得用于大场成像的完美地. 这一进步改善了对剂量敏感的冷电子显微镜 (cryo-EM) 高分辨率成像.

关键词:
这就是TEMEM.在TEM地.低温电磁波冷却器 (Cryo-EM) 是一个非常好的方法.方形梁的正方形梁是一个方形梁.

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Single Particle Electron Microscopy Reconstruction of the Exosome Complex Using the Random Conical Tilt Method
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科学领域:

  • 电子显微镜的电子显微镜
  • 图像技术技术的成像技术
  • 生物物理学的生物物理.

背景情况:

  • 大视野的高放大成像需要.
  • 传统的带圆束传输电子显微镜会产生不完美的和不均的曝光,对于剂量敏感的样本来说是有问题的.

研究的目的:

  • 为传输电子显微镜引入一种新的正方形电子束.
  • 为了证明这种方形光束在改进片和冷电子显微镜 (cryo-EM) 成像中的应用.

主要方法:

  • 在现有的传输电子显微镜中开发和改装一个方形电子束.
  • 方形光束的应用,用于铺设大视野.
  • 低温电子显微镜 (cryo-EM) 成像和分辨率分析.

主要成果:

  • 方形电子束在大面积上实现了近乎完美的平.
  • 使用方形光束的冷电磁成像产生了与传统方法相比的分辨率.
  • 方形光束很容易被改装成现有的显微镜设置.

结论:

  • 方形电子束在电子显微镜中为大场片提供了显著的改进.
  • 这项技术提高了冷电磁成像质量,特别是在剂量敏感的应用中.
  • 易于改装使其成为现有的传输电子显微镜的实际进步.