ArticleJournal of magnetic resonance (San Diego, Calif. : 1997)2017
Instrumentation for cryogenic magic angle spinning dynamic nuclear polarization using 90L of liquid nitrogen per day.
Article in Journal of magnetic resonance (San Diego, Calif. : 1997), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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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.
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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.
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Who cites it
5 citing papers in PubMed.
- Sorbitol-Based Glass Matrices Enable Dynamic Nuclear Polarization beyond 200 K.The journal of physical chemistry letters · 2024Article
- Electron-decoupled MAS DNP with N@CPhysical chemistry chemical physics : PCCP · 2023Article
- Metabolomics and NMR.Handbook of experimental pharmacology · 2023Article
- Cryogenic-compatible spherical rotors and stators for magic angle spinning dynamic nuclear polarization.Magnetic resonance (Gottingen, Germany) · 2023Article
- Pulsed Electron Decoupling and Strategies for Time Domain Dynamic Nuclear Polarization with Magic Angle Spinning.The journal of physical chemistry letters · 2018Article
Corrections and comments
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Authors and funding
9 authors.
Funding
Abstract
Cryogenic sample temperatures can enhance NMR sensitivity by extending spin relaxation times to improve dynamic nuclear polarization (DNP) and by increasing Boltzmann spin polarization. We have developed an efficient heat exchanger with a liquid nitrogen consumption rate of only 90L per day to perform magic-angle spinning (MAS) DNP experiments below 85K. In this heat exchanger implementation, cold exhaust gas from the NMR probe is returned to the outer portion of a counterflow coil within an intermediate cooling stage to improve cooling efficiency of the spinning and variable temperature gases. The heat exchange within the counterflow coil is calculated with computational fluid dynamics to optimize the heat transfer. Experimental results using the novel counterflow heat exchanger demonstrate MAS DNP signal enhancements of 328±3 at 81±2K, and 276±4 at 105±2K.
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Registered trials
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