Over 50 % 1H and 13C Polarization for Generating Hyperpolarized Metabolites—A para‐Hydrogen Approach
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DOI: 10.1002/open.201800086
Abstract: Abstract para‐Hydrogen‐induced polarization (PHIP) is a method to rapidly generate hyperpolarized compounds, enhancing the signal of nuclear magnetic resonance (NMR) experiments by several thousand‐fold. The hyperpolarization of metabolites and their use as contrast agents in vivo… read more here.
Keywords: polarization generating; 13c polarization; acetate; polarization ... See more keywords
Temperature and para hydrogen gradients on Jupiter observed from the FORCAST camera on SOFIA
Sign Up to like & getrecommendations! Published in 2018 at "Icarus"
DOI: 10.1016/j.icarus.2018.05.016
Abstract: Abstract Jupiter was observed on December 8, 2010 with SOFIA using the FORCAST mid-infrared camera with selected spectral channels in the 5–40 µm region. Although the channels were not optimized for planetary observations, we demonstrate that… read more here.
Keywords: temperature; temperature para; para hydrogen; jupiter observed ... See more keywords
Reaction of CH2Cl radical with O2 in solid para-hydrogen: Infrared spectrum of gauche-CH2ClOO radical
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Molecular Structure"
DOI: 10.1016/j.molstruc.2020.128214
Abstract: Abstract Irradiation of a para-hydrogen (p-H2) matrix containing chloroiodomethane (CH2ClI) and O2 at 3.3 K with light at 290 nm yielded infrared absorption lines at 750.1/745.6, 891.7, 1004.6, 1090.7, 1241.3, 1315.6, 1427.8, and 2988.7 cm−1, which are assigned… read more here.
Keywords: para hydrogen; gauche ch2cloo; gauche;
Analysis of Complex Mixtures by Chemosensing NMR Using para-Hydrogen-Induced Hyperpolarization
Sign Up to like & getrecommendations! Published in 2022 at "Accounts of Chemical Research"
DOI: 10.1021/acs.accounts.1c00796
Abstract: Conspectus Nuclear magnetic resonance (NMR) is a powerful technique for chemical analysis. The use of NMR to investigate dilute analytes in complex systems is, however, hampered by its relatively low sensitivity. An additional obstacle is… read more here.
Keywords: para hydrogen; hyperpolarization; analysis; spin ... See more keywords
Benzoquinone Enhances Hyperpolarization of Surface Alcohols with Para-Hydrogen
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DOI: 10.1021/jacs.3c01593
Abstract: The nuclear singlet state of H2, para-hydrogen, can be used to increase the measurable signal-to-noise for magnetic resonance techniques—a form of hyperpolarization. Transfer of this polarization from para-hydrogen to alcohols through surface interactions rather than… read more here.
Keywords: enhances hyperpolarization; para hydrogen; benzoquinone enhances; hydrogen ... See more keywords
Measurements of neutronic characteristics of rectangular and cylindrical coupled hydrogen moderators
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Nuclear Science and Technology"
DOI: 10.1080/00223131.2017.1394235
Abstract: ABSTRACT Extensive simulation calculations were performed in the design studies of the coupled hydrogen moderator for the pulsed spallation neutron source of the Japan Proton Accelerator Research Facility (J-PARC). It was indicated that a para-hydrogen… read more here.
Keywords: coupled hydrogen; moderator; hydrogen; hydrogen moderators ... See more keywords