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.
We report a simple and general method for the hyperpolarization of condensed gases by dynamic nuclear polarization (DNP). The gases are adsorbed in the pores of structured mesoporous silica matrices known as HYPSOs (HYper Polarizing SOlids) that have paramagnetic polarizing agents covalently bound to the surface of the mesopores. DNP is performed at low temperatures and moderate magnetic fields (T = 1.2 K and B0 = 6.7 T). Frequency-modulated microwave irradiation is applied close to the electron spin resonance frequency (f = 188.3 GHz), and the electron spin polarization of the polarizing agents of HYPSO is transferred to the nuclear spins of the frozen gas. A proton polarization as high as P((1)H) = 70% can be obtained, which can be subsequently transferred to (13)C in natural abundance by cross-polarization, yielding up to P((13)C) = 27% for ethylene.
Impact of Ho3+-doping on 13C dynamic nuclear polarization using trityl OX063 free radical #DNPNMR
From The DNP-NMR Blog:
Impact of Ho3+-doping on 13C dynamic nuclear polarization using trityl OX063 free radical #DNPNMR
Kiswandhi, A., et al., Impact of Ho3+-doping on 13C dynamic nuclear polarization using trityl OX063 free radical. Phys. Chem. Chem. Phys., 2016. 18(31): p. 21351-21359.
http://dx.doi.org/10.1039/C6CP03954E
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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
Waveguide transition with vacuum window for multiband dynamic nuclear polarization systems #DNPNMR
From The DNP-NMR Blog:
Waveguide transition with vacuum window for multiband dynamic nuclear polarization systems #DNPNMR
Rybalko, O., et al., Waveguide transition with vacuum window for multiband dynamic nuclear polarization systems. Review of Scientific Instruments, 2016. 87(5): p. 054705.
http://scitation.aip.org/content/aip/journal/rsi/87/5/10.1063/1.4948294
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06-30-2016 02:26 AM
Dynamic nuclear polarization of biocompatible (13)C-enriched carbonates for in vivo pH imaging #DNPNMR
From The DNP-NMR Blog:
Dynamic nuclear polarization of biocompatible (13)C-enriched carbonates for in vivo pH imaging #DNPNMR
Korenchan, D.E., et al., Dynamic nuclear polarization of biocompatible (13)C-enriched carbonates for in vivo pH imaging. Chem Commun (Camb), 2016. 52(14): p. 3030-3.
http://www.ncbi.nlm.nih.gov/pubmed/26792559
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06-02-2016 02:11 AM
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
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05-25-2016 02:30 AM
Amplifying dynamic nuclear polarization of frozen solutions by incorporating dielectric particles
From The DNP-NMR Blog:
Amplifying dynamic nuclear polarization of frozen solutions by incorporating dielectric particles
Kubicki, D.J., et al., Amplifying dynamic nuclear polarization of frozen solutions by incorporating dielectric particles. J Am Chem Soc, 2014. 136(44): p. 15711-8.
http://www.ncbi.nlm.nih.gov/pubmed/25285480
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11-10-2014 10:59 PM
Hyperpolarization of deuterated metabolites via remote cross-polarization and dissolution dynamic nuclear polarization
From The DNP-NMR Blog:
Hyperpolarization of deuterated metabolites via remote cross-polarization and dissolution dynamic nuclear polarization
Vuichoud, B., et al., Hyperpolarization of deuterated metabolites via remote cross-polarization and dissolution dynamic nuclear polarization. J Phys Chem B, 2014. 118(5): p. 1411-5.
http://www.ncbi.nlm.nih.gov/pubmed/24397585
Hyperpolarization of Frozen Hydrocarbon Gases by Dynamic Nuclear Polarization at 1.2 K #DNPNMR
Linear Mode
