Direct supercritical angle localization microscopy for nanometer 3D superresolution.
Direct supercritical angle localization microscopy for nanometer 3D superresolution.
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DOI:
10.1038/s41467-021-21333-x
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发表时间:
2021-02-19
影响因子:
16.6
通讯作者:
Ries J
中科院分区:
文献类型:
--
作者:
Dasgupta A;Deschamps J;Matti U;Hübner U;Becker J;Strauss S;Jungmann R;Heintzmann R;Ries J
3D single molecule localization microscopy (SMLM) is an emerging superresolution method for structural cell biology, as it allows probing precise positions of proteins in cellular structures. In supercritical angle localization microscopy (SALM), z-positions of single fluorophores are extracted from the intensity of supercritical angle fluorescence, which strongly depends on their distance to the coverslip. Here, we realize the full potential of SALM and improve its z-resolution by more than four-fold compared to the state-of-the-art by directly splitting supercritical and undercritical emission, using an ultra-high NA objective, and applying fitting routines to extract precise intensities of single emitters. We demonstrate nanometer isotropic localization precision on DNA origami structures, and on clathrin coated vesicles and microtubules in cells, illustrating the potential of SALM for cell biology. Supercritical angle localisation microscopy (SALM) allows the z-positions of single fluorophores to be extracted from the intensity of supercritical angle fluorescence. Here the authors improve the z-resolution of SALM, and report nanometre isotropic localisation precision on DNA origami structures.
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影响因子:
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作者:
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通讯作者:
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影响因子:
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通讯作者:
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