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Microcrystal Electron Diffraction of Small Molecules
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Standards for MicroED.

Johan Unge1, Brent L Nannenga2, Allen G Oliver3

  • 1Department of Chemistry, Umeå University, 901 87 Umeå, Sweden.

Acta Crystallographica. Section C, Structural Chemistry
|June 20, 2025
PubMed
Summary
This summary is machine-generated.

Electron diffraction (MicroED) is gaining traction. This summary shares key lessons learned from MicroED data and proposes best practices for researchers to ensure high-quality structural results.

Keywords:
Gold standardsMicroEDbest practicescryoEMelectron diffractionquality indicator

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Area of Science:

  • Crystallography
  • Materials Science
  • Structural Biology

Background:

  • Electron diffraction, specifically MicroED, is rapidly advancing in academia and industry.
  • Increasing availability of MicroED data provides insights into structure quality and significance.
  • Growing collective experience with MicroED aids in identifying optimal methodologies.

Purpose of the Study:

  • To summarize key lessons learned from MicroED data analysis.
  • To propose gold standards for MicroED data collection and refinement.
  • To guide researchers in maximizing the utility of MicroED for structural determination.

Main Methods:

  • Analysis of a growing body of MicroED-refined structures and associated data.
  • Identification of common characteristics and potential challenges in MicroED datasets.
  • Review of published MicroED studies to extract best practices.

Main Results:

  • Key insights into the characteristics of MicroED data have been identified.
  • Best practices for MicroED data acquisition and processing are emerging.
  • A foundation for establishing community-accepted standards for MicroED is presented.

Conclusions:

  • Adoption of proposed gold standards will enhance the reliability and comparability of MicroED results.
  • Standardized practices will accelerate the integration of MicroED into routine structural studies.
  • The MicroED community can benefit from shared knowledge and established best practices.