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相关概念视频

Phase Contrast and Differential Interference Contrast Microscopy01:26

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Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
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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: May 14, 2025

High-Throughput Total Internal Reflection Fluorescence and Direct Stochastic Optical Reconstruction Microscopy Using a Photonic Chip
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使用模块强制探针和低空间频率约束的动态连贯衍射成像.

Yingling Zhang1,2,3, Zijian Xu1,2,3, Bo Zhao1,2

  • 1Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China.

Sensors (Basel, Switzerland)
|April 12, 2025
PubMed
概括

这项研究引入了一种新的动态连贯X射线衍射成像 (CDI) 方法. 它实现了高时间和空间分辨率,用于观察材料科学和生命科学中的快速纳米级动态过程.

关键词:
一致的X射线衍射成像成像.动态成像图像处理系统低频传输信息的传输频率很低.模块强制执行探头约束静态区域的限制 静态区域的限制

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科学领域:

  • 物理 物理学 物理
  • 材料科学 材料科学 材料科学
  • 生物物理学的生物物理.

背景情况:

  • 动态行为在纳米和介视系统中很常见.
  • 连贯的X射线衍射成像 (CDI) 为观察微观现象提供纳米分辨率.
  • 现有的CDI技术在成像快速动态过程方面存在局限性.

研究的目的:

  • 通过使用带板光学提出一种新的动态CDI方法.
  • 为了克服成像快速动态过程中的局限性.
  • 为了提高动态成像的时间和空间分辨率.

主要方法:

  • 时空双重约束与探头约束的整合.
  • 利用模量强制探头约束和低频采样信息的时间相关性.
  • 在动态样本中与空静态区域约束相结合.

主要成果:

  • 实现了20 Hz的时间分辨率.
  • 实现了 13.2 nm 的空间分辨率.
  • 重建的图像与图解学结果进行验证,证实了准确性和可行性.

结论:

  • 新的动态CDI方法成功地以高分辨率成像快速动态过程.
  • 这种技术为材料科学和中镜生命科学提供了有价值的新工具.
  • 能够更深入地理解纳米级复杂的动态过程.