Silica materials with wall-embedded nitroxides provide efficient polarization matrices for dynamic nuclear polarization NMR

2016 ◽  
Vol 52 (32) ◽  
pp. 5531-5533 ◽  
Author(s):  
Eric Besson ◽  
Fabio Ziarelli ◽  
Emily Bloch ◽  
Guillaume Gerbaud ◽  
Séverine Queyroy ◽  
...  
Keyword(s):  
Dynamic Nuclear Polarization ◽  
Solid State Nmr ◽  
High Field ◽  
Nuclear Polarization ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Hybrid Silica ◽  
Silica Materials ◽  
Field Dynamic ◽  
Angle Spinning

Hybrid silica materials with wall-embedded nitroxides efficiently polarize impregnated substrates in high-field dynamic nuclear polarization magic-angle spinning solid-state NMR experiments.

scholarly journals Optimizing nitroxide biradicals for cross-effect MAS-DNP: the role of g-tensors’ distance

2020 ◽  
Vol 22 (6) ◽  
pp. 3643-3652 ◽  
Author(s):  
Frédéric Mentink-Vigier
Keyword(s):  
Solid State ◽  
Dynamic Nuclear Polarization ◽  
Solid State Nmr ◽  
Nuclear Polarization ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Cross Effect ◽  
Angle Spinning

Nitroxide biradicals are common polarizing agents used to enhance the sensitivity of solid-state NMR experiments via Magic Angle Spinning Dynamic Nuclear Polarization (MAS-DNP).

scholarly journals High-Field Magic Angle Spinning Dynamic Nuclear Polarization Using Radicals Created by γ-Irradiation

2019 ◽  
Vol 10 (17) ◽  
pp. 4770-4776 ◽  
Author(s):  
Scott L. Carnahan ◽  
Amrit Venkatesh ◽  
Frédéric A. Perras ◽  
James F. Wishart ◽  
Aaron J. Rossini
Keyword(s):  
Dynamic Nuclear Polarization ◽  
High Field ◽  
Nuclear Polarization ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Γ Irradiation ◽  
Angle Spinning

High-Field Dynamic Nuclear Polarization

2020 ◽  
Vol 71 (1) ◽  
pp. 143-170 ◽  
Author(s):  
Björn Corzilius
Keyword(s):  
Dynamic Nuclear Polarization ◽  
Nuclear Polarization ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Paramagnetic Resonance ◽  
Structural Investigations ◽  
Diverse Field ◽  
History Of ◽  
Field Dynamic ◽  
Angle Spinning

Dynamic nuclear polarization (DNP) is one of the most prominent methods of sensitivity enhancement in nuclear magnetic resonance (NMR). Even though solid-state DNP under magic-angle spinning (MAS) has left the proof-of-concept phase and has become an important tool for structural investigations of biomolecules as well as materials, it is still far from mainstream applicability because of the potentially overwhelming combination of unique instrumentation, complex sample preparation, and a multitude of different mechanisms and methods available. In this review, I introduce the diverse field and history of DNP, combining aspects of NMR and electron paramagnetic resonance. I then explain the general concepts and detailed mechanisms relevant at high magnetic field, including solution-state methods based on Overhauser DNP but with a greater focus on the more established MAS DNP methods. Finally, I review practical considerations and fields of application and discuss future developments.

scholarly journals Natural Abundance Oxygen-17 Solid-State NMR of Metal Organic Frameworks Enhanced by Dynamic Nuclear Polarization

2021 ◽  
Author(s):  
Diego Carnevale ◽  
Georges Mouchaham ◽  
Sujing WANG ◽  
Mathieu Baudin ◽  
Christian SERRE ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Dynamic Nuclear Polarization ◽  
Solid State Nmr ◽  
Nuclear Polarization ◽  
Metal Organic Frameworks ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Metal Organic ◽  
Angle Spinning

The 17O resonances of Zirconium-oxo clusters in porous Zr carboxylate metal-organic frameworks (MOFs) have been investigated by magic-angle spinning (MAS) NMR spectroscopy enhanced by dynamic nuclear polarization (DNP) at natural...

scholarly journals Measurement of 14N quadrupole couplings in biomolecular solids using indirect-detection 14N solid-state NMR with DNP

2017 ◽  
Vol 53 (89) ◽  
pp. 12116-12119 ◽  
Author(s):  
J. A. Jarvis ◽  
I. Haies ◽  
M. Lelli ◽  
A. J. Rossini ◽  
I. Kuprov ◽  
...  
Keyword(s):  
Protein Structure ◽  
Solid State ◽  
Dynamic Nuclear Polarization ◽  
Solid State Nmr ◽  
Nuclear Polarization ◽  
Magic Angle Spinning ◽  
Indirect Detection ◽  
Magic Angle ◽  
Angle Spinning

Insights into protein structure through the determination of 14N quadrupolar interactions using magic-angle spinning dynamic nuclear polarization NMR.

scholarly journals Dynamic nuclear polarization at 40 kHz magic angle spinning

2016 ◽  
Vol 18 (15) ◽  
pp. 10616-10622 ◽  
Author(s):  
Sachin R. Chaudhari ◽  
Pierrick Berruyer ◽  
David Gajan ◽  
Christian Reiter ◽  
Frank Engelke ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Dynamic Nuclear Polarization ◽  
Solid State Nmr ◽  
Nuclear Polarization ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Solid State Nmr Spectroscopy ◽  
Wide Range ◽  
Angle Spinning

DNP-enhanced solid-state NMR spectroscopy is shown to maintain performance over a wide range of sample spinning rates up to 40 kHz.

scholarly journals Instrumentation for cryogenic magic angle spinning dynamic nuclear polarization using 90 L of liquid nitrogen per day

2017 ◽  
Vol 283 ◽  
pp. 71-78 ◽  
Author(s):  
Brice J. Albert ◽  
Seong Ho Pahng ◽  
Nicholas Alaniva ◽  
Erika L. Sesti ◽  
Peter W. Rand ◽  
...  
Keyword(s):  
Liquid Nitrogen ◽  
Dynamic Nuclear Polarization ◽  
Nuclear Polarization ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Angle Spinning

Correction to “Directly vs Indirectly Enhanced 13C in Dynamic Nuclear Polarization Magic Angle Spinning NMR Experiments of Nonionic Surfactant Systems”

2017 ◽  
Vol 121 (42) ◽  
pp. 23847-23847
Author(s):  
Markus M. Hoffmann ◽  
Sarah Bothe ◽  
Torsten Gutmann ◽  
Frank-Frederik Hartmann ◽  
Michael Reggelin ◽  
...  
Keyword(s):  
Nonionic Surfactant ◽  
Dynamic Nuclear Polarization ◽  
Nuclear Polarization ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Surfactant Systems ◽  
Angle Spinning
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