Überrück, Till, Michael Adams, Josef Granwehr, and Bernhard Blümich. “A Compact X-Band ODNP Spectrometer towards Hyperpolarized 1H Spectroscopy.” Journal of Magnetic Resonance, April 2020, 106724.
The demand for compact benchtop NMR systems that can resolve chemical shift differences in the ppm to sub-ppm range is growing. However due to material and size restrictions these magnets are limited in field strength and thus in signal intensity and quality. The implementation of standard hyperpolarization techniques is a next step in an effort to boost the signal. Here we present a compact Overhauser Dynamic Nuclear Polarization (ODNP) setup with a permanent magnet that can resolve 1H chemical shift differences in the ppm range. The assembly of the setup and its components are described in detail, and the functionality of the setup is demonstrated experimentally with ODNP enhanced relaxation measurements yielding a maximal enhancement of -140 for an aqueous 4Hydroxy-TEMPO solution. Additionally, 1H spectroscopic resolution and significant enhancements are demonstrated on acetic acid as a solvent.
Electrochemical Overhauser dynamic nuclear polarization #DNPNMR #ODNP
From The DNP-NMR Blog:
Electrochemical Overhauser dynamic nuclear polarization #DNPNMR #ODNP
Tamski, Mika, Jonas Milani, Christophe Roussel, and Jean-Philippe Ansermet. “Electrochemical Overhauser Dynamic Nuclear Polarization.” Physical Chemistry Chemical Physics 22, no. 32 (2020): 17769–76.
https://doi.org/10.1039/D0CP00984A.
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10-19-2020 05:07 PM
Optically-generated Overhauser dynamic nuclear polarization: A numerical analysis #ODNP #DNPNMR
From The DNP-NMR Blog:
Optically-generated Overhauser dynamic nuclear polarization: A numerical analysis #ODNP #DNPNMR
Cheney, Daniel J., and Christopher J. Wedge. “Optically-Generated Overhauser Dynamic Nuclear Polarization: A Numerical Analysis.” The Journal of Chemical Physics 152, no. 3 (January 21, 2020): 034202.
https://doi.org/10.1063/1.5133408.
nmrlearner
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02-29-2020 09:52 PM
Overhauser Dynamic Nuclear Polarization for the Study of Hydration Dynamics, Explained #DNPNMR #ODNP
From The DNP-NMR Blog:
Overhauser Dynamic Nuclear Polarization for the Study of Hydration Dynamics, Explained #DNPNMR #ODNP
Franck, John M., and Songi Han. “Overhauser Dynamic Nuclear Polarization for the Study of Hydration Dynamics, Explained.” In Methods in Enzymology, 615:131–75. Elsevier, 2019.
https://doi.org/10.1016/bs.mie.2018.09.024.
We outline the physical properties of hydration water that are captured by Overhauser Dynamic Nuclear Polarization (ODNP) relaxometry and explore the insights that ODNP yields about the water and the surface that this water is coupled to. As...
nmrlearner
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05-06-2019 04:47 PM
In-situ Overhauser-enhanced nuclear magnetic resonance at less than 1 ?T using an atomic magnetometer #DNPNMR #ODNP
From The DNP-NMR Blog:
In-situ Overhauser-enhanced nuclear magnetic resonance at less than 1 ?T using an atomic magnetometer #DNPNMR #ODNP
Lee, Hyun Joon, Seong-Joo Lee, Jeong Hyun Shim, Han Seb Moon, and Kiwoong Kim. “In-Situ Overhauser-Enhanced Nuclear Magnetic Resonance at Less than 1 ?T Using an Atomic Magnetometer.” Journal of Magnetic Resonance 300 (March 1, 2019): 149–52.
https://doi.org/10.1016/j.jmr.2019.02.001.
nmrlearner
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03-24-2019 10:41 PM
A table-top PXI based low-field spectrometer for solution dynamic nuclear polarization #DNPNMR #ODNP
From The DNP-NMR Blog:
A table-top PXI based low-field spectrometer for solution dynamic nuclear polarization #DNPNMR #ODNP
Biller, Joshua R., Karl F. Stupic, and J. Moreland. “A Table-Top PXI Based Low-Field Spectrometer for Solution Dynamic Nuclear Polarization.” Magnetic Resonance in Chemistry 56, no. 3 (2017): 153–63.
https://doi.org/10.1002/mrc.4672.
nmrlearner
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06-20-2018 08:56 PM
DNP sensitivity of 19F-NMR signals in hexafluorobenzene depending on polarizing agent type #DNPNMR #ODNP
From The DNP-NMR Blog:
DNP sensitivity of 19F-NMR signals in hexafluorobenzene depending on polarizing agent type #DNPNMR #ODNP
Peksoz, Ahmet. “DNP Sensitivity of 19F-NMR Signals in Hexafluorobenzene Depending on Polarizing Agent Type.” Magnetic Resonance in Chemistry 54, no. 9 (2016): 748–52.
https://doi.org/10.1002/mrc.4445.
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06-19-2018 02:55 AM
Multi-Frequency Pulsed Overhauser DNP at 1.2 Tesla #DNPNMR #ODNP
From The DNP-NMR Blog:
Multi-Frequency Pulsed Overhauser DNP at 1.2 Tesla #DNPNMR #ODNP
Schöps, Spindler Philipp, and Prisner Thomas, “Multi-Frequency Pulsed Overhauser DNP at 1.2 Tesla.”
https://doi.org/10.1515/zpch-2016-0844
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06-02-2018 12:51 AM
Free Radical Imaging Using In Vivo Dynamic Nuclear Polarization-MRI #DNPNMR #ODNP
From The DNP-NMR Blog:
Free Radical Imaging Using In Vivo Dynamic Nuclear Polarization-MRI #DNPNMR #ODNP
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Utsumi, H. and F. Hyodo, Free Radical Imaging Using In Vivo Dynamic Nuclear Polarization-MRI. Methods Enzymol, 2015. 564: p. 553-71.
https://www.ncbi.nlm.nih.gov/pubmed/26477265
A compact X-Band ODNP spectrometer towards hyperpolarized 1H spectroscopy #DNPNMR #ODNP
Linear Mode
