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Open-source sub-nanometer stabilization system for super-resolution fluorescence microscopy

delete2025-11-20
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OA
AI
F
Florencia Edorna
F
Florencia D. Choque
G
Giovanni Ferrari
L
Luciano A. Masullo
P
Piotr Zdańkowski
G
Guillermo P. Acuna
P
Philip Tinnefeld
A
Alan M. Szalai
L
Lucía F. Lopez *
A
Andrés Zelcer *
F
Fernando D. Stefani
DOI:10.1038/s41377-025-02022-6delete
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摘要

摘要

En 中文
近年来荧光纳米显微技术的最新进展已将分辨率推向1–10 nm范围,使得即使在拥挤的生物环境中也能直接可视化单个分子。要达到这一精度水平,需要对样品漂移进行严格控制。诸如MINFLUX和RASTMIN等依赖将样品固定在激发模式内的技术,需要主动漂移校正才能实现其理论纳米级分辨率极限。在此,我们介绍了一种用于超分辨率显微术的主动稳定系统,该系统能够实现数小时内的亚纳米级精度。该系统具有简单的光学设计,可作为独立模块添加到任何荧光显微镜上。我们还提供了一套开源控制软件,包括用户友好的图形界面,可轻松适配不同的实验装置。我们通过在两种不同装置上进行的p-MINFLUX和RASTMIN测量,演示了该稳定系统的适应性和性能,实现了理论Cramér-Rao Bound,并在DNA折纸结构中分辨出约10 nm的距离。
Keyword:
super-resolution microscopy
fluorescence nanoscopy
drift correction
active stabilization
Cramér-Rao Bound
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light: science & applications
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论文数:
172
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Ludwig-Maximilians-Universität München
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463
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University of Fribourg
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Institute of Micromechanics and Photonics
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