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Conducting Multiple Imaging Modes with One Fluorescence Microscope
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Published on: October 28, 2018

Extending microscopic resolution with single-molecule imaging and active control.

Michael A Thompson1, Matthew D Lew, W E Moerner

  • 1Department of Chemistry, Stanford University, Stanford, California 94305, USA.

Annual Review of Biophysics
|May 15, 2012
PubMed
Summary
This summary is machine-generated.

Superresolution imaging breaks the optical diffraction limit using single fluorescent molecules. This technique, known as pointillist imaging, reconstructs detailed biological images by precisely localizing and controlling individual emitters.

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Area of Science:

  • Biophysics
  • Optical Microscopy
  • Nanotechnology

Background:

  • Conventional optical microscopy is limited by the diffraction limit, restricting resolution.
  • Superresolution imaging techniques overcome this barrier to visualize nanoscale biological structures.
  • Single-molecule localization microscopy (SMLM) is a key class of superresolution methods.

Purpose of the Study:

  • To review the fundamental principles and strategies behind single-molecule superresolution imaging.
  • To explain the common underlying concepts of techniques like PALM/STORM.
  • To detail the essential steps for achieving superresolution with single nanoscale emitters.

Main Methods:

  • Utilizing single fluorescent molecules as nanoscale light emitters.
  • Implementing emission control to achieve sparse, non-overlapping emitters.
  • Employing superlocalization to precisely detect and pinpoint molecule positions.
  • Reconstructing final images from time-sequential localization data.

Main Results:

  • Demonstration of circumvention of the optical diffraction limit.
  • Reconstruction of high-resolution images of biological structures.
  • Highlighting the common principles across various SMLM acronyms (e.g., PALM, STORM).

Conclusions:

  • Single-molecule superresolution imaging provides unprecedented detail of biological structures.
  • The core strategy involves precise localization and controlled emission of single molecules.
  • This review consolidates the understanding of these powerful "pointillist" imaging techniques.