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相关概念视频

Super-resolution Fluorescence Microscopy01:37

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Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
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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.
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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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Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution
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一种用于高分辨率3D断层成像的多模光板显微镜,采用增强的拉曼散射和计算否定.

Pooja Kumari1, Björn Van Marwick1, Johann Kern2

  • 1CeMOS Research and Transfer Center, Mannheim University of Applied Sciences, 68163 Mannheim, Germany.

Sensors (Basel, Switzerland)
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概括
此摘要是机器生成的。

我们开发了一种新的多模拉曼光板显微镜,用于先进的细胞模型3D成像. 这种无标签的系统增强了复杂的生物标本中的分子和结构细节.

关键词:
3D分子成像 3D分子成像深度图像之前 (DIP)光抑制可以抑制光.光片显微镜光片显微镜多模式成像技术多模式成像技术拉曼断层扫描 断层扫描超级分辨率的超级分辨率

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科学领域:

  • 生物医学光学 生物医学光学
  • 细胞成像 细胞成像
  • 生物技术是生物技术.

背景情况:

  • 三维 (3D) 细胞模型对于组织学,瘤学和组织工程至关重要.
  • 需要先进的成像技术来研究这些模型中复杂的生物现象.

研究的目的:

  • 介绍一款新型的多模式拉曼光板显微镜,用于无标签,高分辨率的3D成像.
  • 整合光学和计算策略,以增强生物分子和结构特征的成像.

主要方法:

  • 开发了一种捕捉弹性 (雷利),不弹性 (拉曼) 散射和光信号的多模态显微镜.
  • 使用532nm激发波长来提高拉曼散射效率并抑制光.
  • 集成了一个深度图像先验 (DIP) 算法,用于无监督的无噪声和分辨率增强.

主要成果:

  • 实现了3D细胞模型的无标签,高分辨率的断层成像.
  • 证明了强大的光抑制,避免了近红外模式的缺点.
  • 通过计算增强来保存关键的分子细节和最小化文物.

结论:

  • 开发的显微镜为复杂的生物标本提供了先进的3D成像功能.
  • 光学和计算方法的这种协同作用促进了生物医学研究,诊断和治疗.