Evidence map›Paper›PMID 26920835›Full record

ArticleJournal of magnetic resonance (San Diego, Calif. : 1997)2016

Low-temperature dynamic nuclear polarization with helium-cooled samples and nitrogen-driven magic-angle spinning.

Kent Thurber, Robert Tycko

Abstract read
In one paragraph

Article in Journal of magnetic resonance (San Diego, Calif. : 1997), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing 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

39 citing papers in PubMed.

  1. Review
  2. Review
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  5. Optimization ofJournal of magnetic resonance (San Diego, Calif. : 1997) · 2024
    Article
  6. Article
  7. Characterization of dielectric properties and their impact on MAS-DNP NMR applications.Journal of magnetic resonance (San Diego, Calif. : 1997) · 2024
    Article
  8. Article
  9. Article
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  11. Article
  12. Article
  13. Diamond rotors.Journal of magnetic resonance (San Diego, Calif. : 1997) · 2023
    Article
  14. Article
  15. Article
  16. MAS-DNP enables NMR studies of insect wings.Solid state nuclear magnetic resonance · 2022
    Article
  17. Time-resolved solid state NMR of biomolecular processes with millisecond time resolution.Journal of magnetic resonance (San Diego, Calif. : 1997) · 2022
    Review
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

Kent ThurberLaboratory of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892-0520, United States.
Robert TyckoLaboratory of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892-0520, United States. Electronic address: robertty@mail.nih.gov.

Funding

Development of Solid State NMR Methods and TechnologyZIADK029029 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI TYCKO, ROBERT · 2009 to 2025
$9.6M
Intramural NIH HHS ZIA DK029029
6 · The paper itself

Abstract

We describe novel instrumentation for low-temperature solid state nuclear magnetic resonance (NMR) with dynamic nuclear polarization (DNP) and magic-angle spinning (MAS), focusing on aspects of this instrumentation that have not been described in detail in previous publications. We characterize the performance of an extended interaction oscillator (EIO) microwave source, operating near 264 GHz with 1.5 W output power, which we use in conjunction with a quasi-optical microwave polarizing system and a MAS NMR probe that employs liquid helium for sample cooling and nitrogen gas for sample spinning. Enhancement factors for cross-polarized (13)C NMR signals in the 100-200 range are demonstrated with DNP at 25K. The dependences of signal amplitudes on sample temperature, as well as microwave power, polarization, and frequency, are presented. We show that sample temperatures below 30K can be achieved with helium consumption rates below 1.3 l/h. To illustrate potential applications of this instrumentation in structural studies of biochemical systems, we compare results from low-temperature DNP experiments on a calmodulin-binding peptide in its free and bound states.

Indexed as

Cold TemperatureHeliumMagnetic Resonance SpectroscopyMicrowavesNitrogenHeliumNitrogenDynamic nuclear polarizationLow-temperature NMRMagic-angle spinningProtein structureSolid state NMR

Identifiers

PMID26920835
PMCPMC4769783

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Registered trials

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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.