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Related Concept Videos

Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

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 developed.
Overview of Electron Microscopy01:25

Overview of Electron Microscopy

The wavelengths of visible light ultimately limit the maximum theoretical resolution of images created by light microscopes. Most light microscopes can only magnify 1000X, and a few can magnify up to 1500X. Electrons, like electromagnetic radiation, can behave like waves, but with wavelengths of 0.005 nm, they produce significantly greater resolution up to 0.05 nm as compared to 500 nm for visible light. An electron microscope (EM) can create a sharp image that is magnified up to 2,000,000X.

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Related Experiment Video

Updated: Jun 3, 2026

Conducting Multiple Imaging Modes with One Fluorescence Microscope
08:32

Conducting Multiple Imaging Modes with One Fluorescence Microscope

Published on: October 28, 2018

Super-resolution microscopy for nanosensing.

James A Galbraith1, Catherine G Galbraith

  • 1NINDS, National Institutes of Health, Bethesda, MD, USA. jgalbrai@ninds.nih.gov

Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology
|March 9, 2011
PubMed
Summary
This summary is machine-generated.

Super-resolution microscopy allows direct observation of molecular dynamics in living cells. This review compares super-resolution techniques for studying cellular nanosensing mechanisms.

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Last Updated: Jun 3, 2026

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

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Super-Resolution Imaging and Shared Management: A Protocol for Confocal Microscopy with Multiplex Detection

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Area of Science:

  • Cellular biology
  • Molecular imaging
  • Biophysics

Background:

  • Optical microscopy advances enable simultaneous visualization of thousands of molecules in living cells.
  • Super-resolution microscopy provides unprecedented opportunities to study molecular mechanisms.
  • Understanding cellular nanosensing requires observing protein dynamics.

Purpose of the Study:

  • To review the principles of super-resolution optical microscopy.
  • To compare super-resolution techniques for studying nanosensing in the cellular microenvironment.
  • To guide the selection of appropriate microscopy techniques for specific biological questions.

Main Methods:

  • Description of super-resolution optical microscopy principles.
  • Comparison of characteristics of different super-resolution techniques.
  • Focus on techniques relevant to cellular nanosensing.

Main Results:

  • Super-resolution microscopy allows real-time observation of molecular rearrangements and protein interactions.
  • Genetically targeted molecular perturbations can be studied in real-time.
  • The review highlights the importance of considering technique limitations.

Conclusions:

  • Super-resolution microscopy is a powerful tool for defining molecular mechanisms of nanosensing.
  • Matching microscopy techniques to biological questions requires awareness of evolving technologies and limitations.
  • Further development of super-resolution techniques will enhance our ability to answer complex cellular questions.