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Related Concept Videos

Overview of Electron Microscopy01:25

Overview of Electron Microscopy

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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: Nov 23, 2025

Using Graphene Liquid Cell Transmission Electron Microscopy to Study in Situ Nanocrystal Etching
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Graphene Liquid Cell Electron Microscopy: Progress, Applications, and Perspectives.

Jungjae Park1, Kunmo Koo1, Namgyu Noh1

  • 1Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea.

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|January 4, 2021
PubMed
Summary

Graphene liquid cell electron microscopy (GLC-EM) enables atomic-scale imaging of liquid samples. This technique visualizes nanomaterials and biological samples in liquids, advancing materials and life sciences.

Keywords:
battery materialsgraphenegraphene liquid cellin situ electron microscopylife scienceliquid-phase transmission electron microscopymineralizationnanoparticleoperando electron microscopy

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Biophysics

Background:

  • Graphene liquid cell electron microscopy (GLC-EM) is a novel liquid-phase EM technique.
  • It allows direct visualization of wet biological samples and nanomaterials in liquids.
  • GLC utilizes single-atom-thick graphene sheets as windows and containers for liquid samples.

Purpose of the Study:

  • To summarize the advancements in Graphene liquid cell fabrication.
  • To highlight recent applications of GLC-EM across various scientific fields.
  • To discuss future opportunities and considerations for GLC-EM.

Main Methods:

  • Review of Graphene liquid cell fabrication techniques (veil-type, well-type, liquid-flowing).
  • Compilation and analysis of recent GLC-EM studies.
  • Discussion of atomic-resolution imaging in liquid environments.

Main Results:

  • GLC-EM facilitates atomic-scale observation of intact liquids within a vacuum TEM.
  • Diverse applications demonstrated in materials science, colloidal science, environmental science, and life sciences.
  • Recent studies cover colloidal nanoparticles, battery electrodes, mineralization, and wet biological samples.

Conclusions:

  • GLC-EM is a powerful tool for in-situ liquid-state dynamic studies at atomic resolution.
  • Continued development of GLC fabrication and applications promises broader scientific impact.
  • This technique offers significant insights into liquid-state dynamics across multiple disciplines.