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Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

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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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Updated: Jul 28, 2025

Detection and Quantification of Tunneling Nanotubes Using 3D Volume View Images
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用于成像纳米集群转换的切片可视化

Xiao Wei1, Haoqi Li1, Hao Li1

  • 1Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China.

Journal of the American Chemical Society
|May 30, 2023
PubMed
概括
此摘要是机器生成的。

研究人员开发了一种"切片可视化"方法,在金属纳米集成转换过程中精确追踪中间结构. 这项技术揭示了金银纳米集群的原子级演变,揭示了生长机制.

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科学领域:

  • 纳米材料科学
  • 原子精度成像
  • 表面化学

背景情况:

  • 金属纳米集群是具有可调节性质的多功能纳米材料.
  • 转化纳米集群通常发生在一个不太了解的"盲盒"状态中.
  • 以原子分辨率追踪中间体对于理解合成至关重要.

研究的目的:

  • 开发和应用一种新的成像方法来观察纳米集群转换.
  • 阐明控制金银纳米集群生长的原子级机制.
  • 在集群演变过程中准确监测中间结构.

主要方法:

  • 一种"切片可视化"成像技术的开发.
  • 从Au1Ag24 (SR) 18到Au1Ag30 (SR) 20的纳米聚变的深入分析.
  • 中间物种的原子分辨率跟踪,Au1Ag26(SR) 19和Au1Ag28(SR) 20.

主要成果:

  • 在纳米聚变过程中成功监测了两个关键中间体 (Au1Ag26(SR) 19和Au1Ag28 ((SR) 20).
  • 确定了一系列相关的Au1Ag24+2n纳米集群 (n=0-3),共享Au1Ag12核.
  • 详述了涉及Ag2(SR) 1插入或Ag诱导子单元组装的生长机制.

结论:

  • "切片可视化"方法为研究纳米集群演变提供了原子精度.
  • 这种方法有助于深入研究纳米集群中的结构属性关系.
  • 提供了获取纳米集群结构动态清晰信息的强大工具.