高级不和超线性向上转换图像扫描显微镜用于超分辨率成像
Hongmei Peng1, Weilong Kong1, Zitong Zhang2
1School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China.
The journal of physical chemistry letters
|October 14, 2025
概括
这项研究介绍了非和超线性向上转换图像扫描显微镜 (UISM),一种新的超分辨率技术. 在UISM中,使用化的升级转换纳米粒子 (UCNPs) 来实现显著增强的图像分辨率,远远超过传统方法.
科学领域:
- 显微镜的使用方法
- 纳米技术纳米技术
- 生物物理学的生物物理.
背景情况:
- 同焦激光扫描显微镜 (CLSM) 面临着分辨率质量上的权衡.
- 图像扫描显微镜 (ISM) 提供了改进,但其分辨率收益有限.
- 现有的超分辨率方法往往涉及复杂的程序或光漂白.
研究的目的:
- 开发一种新的超高分辨率显微镜技术,使用上转化纳米粒子.
- 克服传统和ISM技术的分辨率限制.
- 为了实现超出衍射极限的增强空间分辨率.
主要方法:
- 开发了非和超线性向上转换图像扫描显微镜 (UISM).
- 采用了具有可调节激发功率的合兰化物升级转换纳米粒子 (UCNPs).
- 使用980nm的近红外激发来获取图像.
主要成果:
- 实现的空间分辨率为133nm (455nm发射) 和196nm (800nm发射).
- 证明了解决方案的增强,远远超过CLSM的两倍.
- 通过在不和激发值调整UCNP响应,获得了缩小点传播函数.
结论:
- 非和超线性UISM为超分辨率成像提供了一种新的策略.
- 这种技术使得分辨率远远超出了传统的激光扫描显微镜.
- 该方法为高级显微镜提供了一条新的途径,具有增强的空间分辨率.
更多相关视频
10:41Confocal and Super-Resolution Imaging of Polarized Intracellular Trafficking and Secretion of Basement Membrane Proteins During Drosophila Oogenesis
Published on: May 19, 2022
2.6K
06:25Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
Published on: February 12, 2014
8.8K
相关概念视频
Super-resolution Fluorescence Microscopy
12.2K
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...
12.2K
Confocal Fluorescence Microscopy
20.0K
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,...
20.0K
Imaging Biological Samples with Optical Microscopy
8.8K
Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
8.8K
