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Meeting experiments at the diffraction barrier: an in-silico widefield fluorescence microscopy

Mahajan, S.; Tang, T.

2021-03-02 biophysics
10.1101/2021.03.02.433395 bioRxiv
Show abstract

Fluorescence microscopy allows the visualization of live cells and their components, but even with advances in super- resolution microscopy, atomic resolution remains unattainable. On the other hand, molecular simulations (MS) can easily access atomic resolution, but comparison with experimental microscopy images has not been possible. In this work, a novel in-silico widefield fluorescence microscopy is proposed, which reduces the resolution of MS to generate images comparable to experiments. This technique will allow cross-validation and compound the knowledge gained from experiments and MS. We demonstrate that in-silico images can be produced with different optical axis, object focal planes, exposure time, color combinations, resolution, brightness and amount of out-of-focus fluorescence. This allows the generation of images that resemble those obtained from widefield, confocal, light-sheet, two-photon and super-resolution microscopy. This technique not only can be used as a standalone visualization tool for MS, but also lays the foundation for other in-silico microscopy methods.

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