Cryogenic transmission electron microscopy: Aqueous suspensions of nanoscale objects

Nathan D. Burrows, Lee Penn

Research output: Contribution to journalReview articlepeer-review

26 Scopus citations

Abstract

Direct imaging of nanoscale objects suspended in liquid media can be accomplished using cryogenic transmission electron microscopy (cryo-TEM). Cryo-TEM has been used with particular success in microbiology and other biological fields. Samples are prepared by plunging a thin film of sample into an appropriate cryogen, which essentially produces a snapshot of the suspended objects in their liquid medium. With successful sample preparation, cryo-TEM images can facilitate elucidation of aggregation and self-assembly, as well as provide detailed information about cells and viruses. This work provides an explanation of sample preparation, detailed examples of the many artifacts found in cryo-TEM of aqueous samples, and other key considerations for successful cryo-TEM imaging.

Original languageEnglish (US)
Pages (from-to)1542-1553
Number of pages12
JournalMicroscopy and Microanalysis
Volume19
Issue number6
DOIs
StatePublished - Dec 1 2013

Keywords

  • colloids
  • cryo-TEM
  • cryo-TEM artifacts
  • cryogenic transmission electron microscopy
  • electron microscopy
  • nanoparticles
  • sample preparation

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