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| Home > Publications database > Nanometer resolution imaging and tracking of fluorescent molecules with minimal photon fluxes. |
| Journal Article | DKFZ-2017-00422 |
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2017
American Association for the Advancement of Science38566
Washington, DC [u.a.]
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Please use a persistent id in citations: doi:10.1126/science.aak9913
Abstract: We introduce MINFLUX, a concept for localizing photon emitters in space. By probing the emitter with a local intensity minimum of excitation light, MINFLUX minimizes the fluorescence photons needed for high localization precision. In our experiments, 22 times fewer fluorescence photons are required as compared to popular centroid localization. In superresolution microscopy, MINFLUX attained ~1-nm precision, resolving molecules only 6 nanometers apart. MINFLUX tracking of single fluorescent proteins increased the temporal resolution and the number of localizations per trace by a factor of 100, as demonstrated with diffusing 30S ribosomal subunits in living Escherichia coli As conceptual limits have not been reached, we expect this localization modality to break new ground for observing the dynamics, distribution, and structure of macromolecules in living cells and beyond.
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