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相关概念视频

X-ray Diffraction of Biological Samples01:10

X-ray Diffraction of Biological Samples

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X-ray diffraction or XRD is an analytical tool that utilizes X-rays to study ordered structures such as crystalline organic and inorganic samples, polycrystalline materials, proteins, carbohydrates, and drugs.
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are  scattered by the electron clouds around the sample atoms. The  X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal...
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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
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相关实验视频

Updated: Jul 12, 2025

Xylem Water Distribution in Woody Plants Visualized with a Cryo-scanning Electron Microscope
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通过基于同步子X射线的X射线微型CT检测和量化西伦栓塞.

Martina Tomasella1, Francesco Petruzzellis1, Sara Natale1

  • 1Dipartimento di Scienze della Vita, Università di Trieste, Trieste, Italy.

Methods in molecular biology (Clifton, N.J.)
|October 28, 2023
PubMed
概括

植物膜栓塞的脆弱性是干旱耐受性和作物弹性的关键. 同步X射线微型CT提供了一种非破坏性的方法来准确量化这种特征,克服传统技术的局限性.

关键词:
叶子 叶子 叶子微型CT技术的使用这是一个PLC,PLC是PLC.干部 干部 干部这是X射线.克西勒姆栓塞症是什么?克西勒姆的脆弱性

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相关实验视频

Last Updated: Jul 12, 2025

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科学领域:

  • 植物生理学 植物生理学
  • 干旱压力反应反应干旱压力反应
  • 克西伦栓塞的量化量化

背景情况:

  • 体栓塞的脆弱性是干旱耐受性的关键植物特征.
  • 传统的液压方法用于栓塞的确定往往是破坏性的,容易出现文物.
  • 精确测量树栓塞对于了解植物对气候变化的反应至关重要.

研究的目的:

  • 突出西栓塞脆弱性在植物干旱耐受性中的重要性.
  • 引入基于同步的X射线微型CT作为栓塞量化的关键参考技术.
  • 描述微CT图像采集和处理用于植物树的基本原则.

主要方法:

  • 直接和in vivo基于同步仪的X射线微CT观测植物质管道.
  • 图像采集协议用于高分辨率的微型CT扫描.
  • 图像处理技术用于准确量化西伦体内栓塞.

主要成果:

  • 协同 X 射线微型CT 提供了精确且无人工物质的西伦栓塞的量化.
  • 这种技术可以进行体内观察,这对于理解动态栓塞过程至关重要.
  • 微CT允许对工厂液压架构进行详细分析.

结论:

  • 同步龙X射线微型CT是研究植物液压结构和栓塞的必不可少的工具.
  • 这种方法对于选适应气候变化的作物和了解干旱下的植被动态至关重要.
  • 微型信息技术的进步对于植物科学研究和气候变化适应战略至关重要.