TY - JOUR A1 - Palayret, Matthieu A1 - Armes, Helen A1 - Basu, Srinjan A1 - Watson, Adam T. A1 - Herbert, Alex A1 - Lando, David A1 - Etheridge, Thomas J. A1 - Endesfelder, Ulrike A1 - Heilemann, Mike A1 - Laue, Ernest A1 - Carr, Antony M. A1 - Klenerman, David A1 - Lee, Steven F. T1 - Virtual-"light-sheet" single-molecule localisation microscopy enables quantitative optical sectioning for super-resolution imaging T2 - PLoS one N2 - Single-molecule super-resolution microscopy allows imaging of fluorescently-tagged proteins in live cells with a precision well below that of the diffraction limit. Here, we demonstrate 3D sectioning with single-molecule super-resolution microscopy by making use of the fitting information that is usually discarded to reject fluorophores that emit from above or below a virtual-'light-sheet', a thin volume centred on the focal plane of the microscope. We describe an easy-to-use routine (implemented as an open-source ImageJ plug-in) to quickly analyse a calibration sample to define and use such a virtual light-sheet. In addition, the plug-in is easily usable on almost any existing 2D super-resolution instrumentation. This optical sectioning of super-resolution images is achieved by applying well-characterised width and amplitude thresholds to diffraction-limited spots that can be used to tune the thickness of the virtual light-sheet. This allows qualitative and quantitative imaging improvements: by rejecting out-of-focus fluorophores, the super-resolution image gains contrast and local features may be revealed; by retaining only fluorophores close to the focal plane, virtual-'light-sheet' single-molecule localisation microscopy improves the probability that all emitting fluorophores will be detected, fitted and quantitatively evaluated. Y1 - 2015 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/37382 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-373820 SN - 1932-6203 N1 - Copyright: © 2015 Palayret et al. This is an open access article distributed under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited VL - 10 IS - (4): e0125438 PB - PLoS CY - Lawrence, Kan. ER -