1H dynamic nuclear polarization and nuclear spin-lattice relaxation rates have been studied in amorphous complexes of ?-cyclodextrins doped with different concentrations of the TEMPO radical. Nuclear polarization increased up to 10% in the optimal case, with a behavior of the buildup rate (1/TPOL) and of the nuclear spin-lattice relaxation rate (1/T1n) consistent with a thermal mixing regime. The temperature dependence of 1/T1n and its increase with the radical concentration indicate a relaxation process arising from the modulation of the electron–nucleus coupling by the glassy dynamics. The high-temperature relaxation is driven by molecular motions, and 1/T1n was studied at room temperature in liquid solutions for dilution levels close to the ones typically used for in vivo studies.
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Dynamic Nuclear Polarization and Other Magnetic Ideas at EPFL #DNPNMR
From The DNP-NMR Blog:
Dynamic Nuclear Polarization and Other Magnetic Ideas at EPFL #DNPNMR
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Bornet, A., et al., Dynamic Nuclear Polarization and Other Magnetic Ideas at EPFL. CHIMIA International Journal for Chemistry, 2012. 66(10): p. 734-740.
https://doi.org/10.2533/chimia.2012.734
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12-21-2016 11:43 PM
Microwave-gated dynamic nuclear polarization #DNPNMR
From The DNP-NMR Blog:
Microwave-gated dynamic nuclear polarization #DNPNMR
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Bornet, A., et al., Microwave-gated dynamic nuclear polarization. Phys. Chem. Chem. Phys., 2016. 18(44): p. 30530-30535.
http://dx.doi.org/10.1039/C6CP05587G
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12-15-2016 02:04 AM
Phenylazide Hybrid-Silica - Polarization Platform for Dynamic Nuclear Polarization at Cryogenic Temperatures #DNPNMR
From The DNP-NMR Blog:
Phenylazide Hybrid-Silica - Polarization Platform for Dynamic Nuclear Polarization at Cryogenic Temperatures #DNPNMR
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Grüning, W.R., et al., Phenylazide Hybrid-Silica - Polarization Platform for Dynamic Nuclear Polarization at Cryogenic Temperatures. Helvetica Chimica Acta, 2016: p. n/a-n/a.
http://dx.doi.org/10.1002/hlca.201600122
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11-19-2016 08:35 PM
Hyperpolarization of Frozen Hydrocarbon Gases by Dynamic Nuclear Polarization at 1.2 K #DNPNMR
From The DNP-NMR Blog:
Hyperpolarization of Frozen Hydrocarbon Gases by Dynamic Nuclear Polarization at 1.2 K #DNPNMR
Vuichoud, B., et al., Hyperpolarization of Frozen Hydrocarbon Gases by Dynamic Nuclear Polarization at 1.2 K. J Phys Chem Lett, 2016. 7(16): p. 3235-9.
https://www.ncbi.nlm.nih.gov/pubmed/27483034
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09-22-2016 10:41 PM
Molecular Rationale for Improved Dynamic Nuclear Polarization of Biomembranes #DNPNMR
From The DNP-NMR Blog:
Molecular Rationale for Improved Dynamic Nuclear Polarization of Biomembranes #DNPNMR
Smith, A.N., et al., Molecular Rationale for Improved Dynamic Nuclear Polarization of Biomembranes. J Phys Chem B, 2016. 120(32): p. 7880-8.
https://www.ncbi.nlm.nih.gov/pubmed/27434371
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09-22-2016 10:41 PM
Dynamic nuclear polarization at 40 kHz magic angle spinning #DNPNMR
From The DNP-NMR Blog:
Dynamic nuclear polarization at 40 kHz magic angle spinning #DNPNMR
Chaudhari, S.R., et al., Dynamic nuclear polarization at 40 kHz magic angle spinning. Phys Chem Chem Phys, 2016. 18(15): p. 10616-22.
http://www.ncbi.nlm.nih.gov/pubmed/27035630
Essentials of Dynamic Nuclear Polarization #DNPNMR
From The DNP-NMR Blog:
Essentials of Dynamic Nuclear Polarization #DNPNMR
Dear Colleague,
It is my pleasure to announce that a limited edition of
`Essentials of Dynamic Nuclear Polarization'
is now available at the UK branch of Amazon: www.amazon.co.uk
Dynamic Nuclear Polarization of ?-Cyclodextrin Macromolecules #DNPNMR
Linear Mode
