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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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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 27, 2025

High-Throughput Total Internal Reflection Fluorescence and Direct Stochastic Optical Reconstruction Microscopy Using a Photonic Chip
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在芯片上的镜子增强多光子升级转换超分辨率显微镜.

Yongtao Liu1,2, Jiajia Zhou2, Shihui Wen2

  • 1Smart Computational Imaging Laboratory(SCILab), School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu Province 210094, China.

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概括
此摘要是机器生成的。

多光子向上转换超分辨率显微镜 (MPUM) 使用非线性光实现更高分辨率. 一个新的芯片上的镜子将激发功率降低10倍,使得超高分辨率成像具有较低的光毒性.

关键词:
镜子增强增强的镜子多光子成像成像技术自己干扰的自我干扰.刺激性耗尽显微镜学上转换纳米粒子,芯片上的超分辨率.

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科学领域:

  • 生物医学光学 生物医学光学
  • 显微镜的使用方法
  • 纳米技术纳米技术

背景情况:

  • 多光子向上转换超分辨率显微镜 (MPUM) 提供了增强的分辨率和透深度.
  • 在MPUM中的高激发功率导致光毒性增加,限制了其应用.
  • 利用透明的生物窗口与非线性近红外辐射是MPUM的关键.

研究的目的:

  • 开发一种方法,在低激发功率下,在MPUM中实现非线性和辐射.
  • 为了减少与MPUM中高激发功率相关的光毒性.
  • 为了提高MPUM的激发效率和分辨率.

主要方法:

  • 引入一个简单设计的芯片内镜子来操纵局部电磁场.
  • 利用干扰效应来限制点扩散函数.
  • 在不增加MPUM设置复杂性的情况下实现芯片上的镜像.

主要成果:

  • 在显著较低的激发功率下实现非线性和发射.
  • 减少了10倍的激发功率要求.
  • 在纳米粒子成像中展示了大约35nm (激发波长的1/28) 的侧面分辨率.
  • 证实了芯片上的镜子在提高激发效率方面的有效性.

结论:

  • 芯片上的镜子为MPUM中超分辨率增强提供了简单有效的解决方案.
  • 这种方法显著降低了所需的激发功率,减少了光毒性.
  • 这种方法可以通过预先设计的芯片上设备进行高分辨率成像.