Array detection enables large localization range for simple and robust MINFLUX

Abstract The MINFLUX concept significantly improves the localization properties of single-molecule localization microscopy (SMLM) by overcoming the limit imposed by the fluorophore’s photon counts. Typical MINFLUX microscopes localize the target molecule by scanning a zero-intensity focus around the...

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Main Authors: Eli Slenders, Sanket Patil, Marcus Oliver Held, Alessandro Zunino, Giuseppe Vicidomini
Format: Article
Language:English
Published: Nature Publishing Group 2025-07-01
Series:Light: Science & Applications
Online Access:https://doi.org/10.1038/s41377-025-01883-1
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author Eli Slenders
Sanket Patil
Marcus Oliver Held
Alessandro Zunino
Giuseppe Vicidomini
author_facet Eli Slenders
Sanket Patil
Marcus Oliver Held
Alessandro Zunino
Giuseppe Vicidomini
author_sort Eli Slenders
collection DOAJ
description Abstract The MINFLUX concept significantly improves the localization properties of single-molecule localization microscopy (SMLM) by overcoming the limit imposed by the fluorophore’s photon counts. Typical MINFLUX microscopes localize the target molecule by scanning a zero-intensity focus around the molecule in a circular trajectory, with smaller trajectory diameters yielding better localization uncertainties for a given number of photons. Since this approach requires the molecule to be within the scanned trajectory, MINFLUX typically relies on an iterative scheme with decreasing trajectory diameters. This iterative approach is prone to misplacements of the trajectory and increases the system’s complexity. In this work, we introduce ISM-FLUX, a novel implementation of MINFLUX using image-scanning microscopy (ISM) with a single-photon avalanche diode array detector. ISM-FLUX provides a precise MINFLUX localization within the trajectory while maintaining a conventional photon-limited uncertainty outside it. The robustness of ISM-FLUX localization results in a larger localization range and greatly simplifies the architecture, which may facilitate broader adoption of MINFLUX.
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institution Kabale University
issn 2047-7538
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publishDate 2025-07-01
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series Light: Science & Applications
spelling doaj-art-1a9b89a7c3d9418b8c022af02641e00a2025-08-20T03:42:00ZengNature Publishing GroupLight: Science & Applications2047-75382025-07-0114111310.1038/s41377-025-01883-1Array detection enables large localization range for simple and robust MINFLUXEli Slenders0Sanket Patil1Marcus Oliver Held2Alessandro Zunino3Giuseppe Vicidomini4Molecular Microscopy and Spectroscopy, Istituto Italiano di TecnologiaMolecular Microscopy and Spectroscopy, Istituto Italiano di TecnologiaMolecular Microscopy and Spectroscopy, Istituto Italiano di TecnologiaMolecular Microscopy and Spectroscopy, Istituto Italiano di TecnologiaMolecular Microscopy and Spectroscopy, Istituto Italiano di TecnologiaAbstract The MINFLUX concept significantly improves the localization properties of single-molecule localization microscopy (SMLM) by overcoming the limit imposed by the fluorophore’s photon counts. Typical MINFLUX microscopes localize the target molecule by scanning a zero-intensity focus around the molecule in a circular trajectory, with smaller trajectory diameters yielding better localization uncertainties for a given number of photons. Since this approach requires the molecule to be within the scanned trajectory, MINFLUX typically relies on an iterative scheme with decreasing trajectory diameters. This iterative approach is prone to misplacements of the trajectory and increases the system’s complexity. In this work, we introduce ISM-FLUX, a novel implementation of MINFLUX using image-scanning microscopy (ISM) with a single-photon avalanche diode array detector. ISM-FLUX provides a precise MINFLUX localization within the trajectory while maintaining a conventional photon-limited uncertainty outside it. The robustness of ISM-FLUX localization results in a larger localization range and greatly simplifies the architecture, which may facilitate broader adoption of MINFLUX.https://doi.org/10.1038/s41377-025-01883-1
spellingShingle Eli Slenders
Sanket Patil
Marcus Oliver Held
Alessandro Zunino
Giuseppe Vicidomini
Array detection enables large localization range for simple and robust MINFLUX
Light: Science & Applications
title Array detection enables large localization range for simple and robust MINFLUX
title_full Array detection enables large localization range for simple and robust MINFLUX
title_fullStr Array detection enables large localization range for simple and robust MINFLUX
title_full_unstemmed Array detection enables large localization range for simple and robust MINFLUX
title_short Array detection enables large localization range for simple and robust MINFLUX
title_sort array detection enables large localization range for simple and robust minflux
url https://doi.org/10.1038/s41377-025-01883-1
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AT marcusoliverheld arraydetectionenableslargelocalizationrangeforsimpleandrobustminflux
AT alessandrozunino arraydetectionenableslargelocalizationrangeforsimpleandrobustminflux
AT giuseppevicidomini arraydetectionenableslargelocalizationrangeforsimpleandrobustminflux