Resolution doubling in 3D-STORM imaging through improved buffers

Super-resolution imaging methods have revolutionized fluorescence microscopy by revealing the nanoscale organization of labeled proteins. In particular, single-molecule methods such as Stochastic Optical Reconstruction Microscopy (STORM) provide resolutions down to a few tens of nanometers by exploi...

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Veröffentlicht in:PloS one 2013-07, Vol.8 (7), p.e69004-e69004
Hauptverfasser: Olivier, Nicolas, Keller, Debora, Gönczy, Pierre, Manley, Suliana
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creator Olivier, Nicolas
Keller, Debora
Gönczy, Pierre
Manley, Suliana
description Super-resolution imaging methods have revolutionized fluorescence microscopy by revealing the nanoscale organization of labeled proteins. In particular, single-molecule methods such as Stochastic Optical Reconstruction Microscopy (STORM) provide resolutions down to a few tens of nanometers by exploiting the cycling of dyes between fluorescent and non-fluorescent states to obtain a sparse population of emitters and precisely localizing them individually. This cycling of dyes is commonly induced by adding different chemicals, which are combined to create a STORM buffer. Despite their importance, the composition of these buffers has scarcely evolved since they were first introduced, fundamentally limiting what can be resolved with STORM. By identifying a new chemical suitable for STORM and optimizing the buffer composition for Alexa-647, we significantly increased the number of photons emitted per cycle by each dye, providing a simple means to enhance the resolution of STORM independently of the optical setup used. Using this buffer to perform 3D-STORM on biological samples, we obtained images with better than 10 nanometer lateral and 30 nanometer axial resolution.
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subjects Animals
Biological properties
Biological samples
Biology
Biophysics
Buffers
Cercopithecus aethiops
Chemistry
COS Cells
Cycles
Dyes
Emitters
Experiments
Fluorescence
Fluorescence microscopy
Hydrogen-Ion Concentration
Image resolution
Laboratories
Life sciences
Localization
Medical research
Microscopy
Microscopy, Fluorescence - methods
Photons
Physics
Proteins
Proteins - metabolism
Stochasticity
Storms
title Resolution doubling in 3D-STORM imaging through improved buffers
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