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Related Concept Videos

Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

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Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
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Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
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Related Experiment Video

Updated: Mar 3, 2026

Open-source Single-particle Analysis for Super-resolution Microscopy with VirusMapper
07:38

Open-source Single-particle Analysis for Super-resolution Microscopy with VirusMapper

Published on: April 9, 2017

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Open-source Single-particle Analysis for Super-resolution Microscopy with VirusMapper.

Robert D M Gray1, Jason Mercer2, Ricardo Henriques3

  • 1MRC Laboratory for Molecular Cell Biology, University College London; Centre for Mathematics and Physics in Life Sciences and Experimental Biology (CoMPLEX), University College London.

Journal of Visualized Experiments : Jove
|April 28, 2017
PubMed
Summary
This summary is machine-generated.

A new algorithm, VirusMapper, enables single-particle analysis on super-resolution microscopy images. This powerful tool helps uncover novel structural details in nanoscale biological complexes for cell biology research.

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Area of Science:

  • Cell Biology
  • Biophysics
  • Microscopy

Background:

  • Super-resolution fluorescence microscopy overcomes traditional resolution limits (~300 nm).
  • Enables imaging of nanoscale biological structures and processes.
  • Facilitates application of electron microscopy techniques like single-particle analysis.

Purpose of the Study:

  • To develop a novel algorithm for single-particle analysis in super-resolution microscopy.
  • To create an accessible, high-performance ImageJ plugin named VirusMapper.
  • To guide researchers in applying single-particle analysis to super-resolution images for structural mapping.

Main Methods:

  • Development of the VirusMapper algorithm.
  • Packaging the algorithm as an ImageJ plugin.
  • Providing a step-by-step protocol for data assembly and analysis.

Main Results:

  • Demonstration of VirusMapper's capability to uncover novel structural features.
  • Successful application of single-particle analysis to super-resolution optical imaging.
  • Generation of structural maps of molecular elements within metastable structures.

Conclusions:

  • VirusMapper facilitates the integration of single-particle analysis with super-resolution microscopy.
  • The plugin enables detailed structural mapping of molecular complexes.
  • This approach advances the study of nanoscale biological organization and function.