Evidence map›Paper›PMID 29073575›Full record

ArticleUltramicroscopy2018

Relative merits and limiting factors for x-ray and electron microscopy of thick, hydrated organic materials.

Ming Du, Chris Jacobsen

Erratum issuedAbstract read
In one paragraph

Article in Ultramicroscopy, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed.

  1. Article
  2. Damage-limited resolution for X-ray and electron microscopy of organic specimens.Acta crystallographica. Section D, Structural biology · 2026
    Article
  3. Electrons and X-rays for diffraction and imaging.Acta crystallographica. Section D, Structural biology · 2026
    Review
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  19. Upscaling X-ray nanoimaging to macroscopic specimens.Journal of applied crystallography · 2021
    Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors.

Ming DuDepartment of Materials Science and Engineering, Northwestern University, 2145 Sheridan Road, Evanston IL 60208, USA.
Chris JacobsenAdvanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Argonne IL 60439, USA; Department of Physics & Astronomy, Northwestern University, 2145 Sheridan Road, Evanston IL 60208, USA; Chemistry of Life Processes Institute, Northwestern University, 2170 Campus Drive, Evanston IL 60208, USA. Electronic address: c-jacobsen@northwestern.edu.

Funding

Sub-micrometer x-ray tomography for neuroanatomyU01MH109100 · NIMH · NORTHWESTERN UNIVERSITY · PI JACOBSEN, CHRIS JOHNSON, KASTHURI, NARAYANAN · 2015 to 2017
$2.0M
NIMH NIH HHS U01 MH109100
6 · The paper itself

Abstract

Electron and x-ray microscopes allow one to image the entire, unlabeled structure of hydrated materials at a resolution well beyond what visible light microscopes can achieve. However, both approaches involve ionizing radiation, so that radiation damage must be considered as one of the limits to imaging. Drawing upon earlier work, we describe here a unified approach to estimating the image contrast (and thus the required exposure and corresponding radiation dose) in both x-ray and electron microscopy. This approach accounts for factors such as plural and inelastic scattering, and (in electron microscopy) the use of energy filters to obtain so-called "zero loss" images. As expected, it shows that electron microscopy offers lower dose for specimens thinner than about 1 µm (such as for studies of macromolecules, viruses, bacteria and archaebacteria, and thin sectioned material), while x-ray microscopy offers superior characteristics for imaging thicker specimen such as whole eukaryotic cells, thick-sectioned tissues, and organs. The required radiation dose scales strongly as a function of the desired spatial resolution, allowing one to understand the limits of live and frozen hydrated specimen imaging. Finally, we consider the factors limiting x-ray microscopy of thicker materials, suggesting that specimens as thick as a whole mouse brain can be imaged with x-ray microscopes without significant image degradation should appropriate image reconstruction methods be identified.

Indexed as

AnimalsBrainEukaryotic CellsMiceMicroscopy, ElectronRadiation DosageX-Ray MicrotomographyX-RaysElectronRadiation damageThick specimenX-Ray

Identifiers

PMID29073575
PMCPMC5696083

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.