Results 31 to 40 of about 2,821 (200)

Reconversion of Parahydrogen Gas in Surfactant-Coated Glass NMR Tubes

open access: yesMolecules, 2023
The application of parahydrogen gas to enhance the magnetic resonance signals of a diversity of chemical species has increased substantially in the last decade.
Robert V. Chimenti   +4 more
doaj   +1 more source

Geminal parahydrogen-induced polarization: accumulating long-lived singlet order on methylene proton pairs [PDF]

open access: yesMagnetic Resonance, 2020
In the majority of hydrogenative parahydrogen-induced polarization (PHIP) experiments, the hydrogen molecule undergoes pairwise cis addition to an unsaturated precursor to occupy vicinal positions on the product molecule.
L. Dagys   +6 more
doaj   +1 more source

Local Superfluidity of Parahydrogen Clusters [PDF]

open access: yesPhysical Review Letters, 2008
4 pages, 4 ...
Mezzacapo, Fabio, Boninsegni, Massimo
openaire   +3 more sources

Microscopic Pair Potentials and the Physical Properties of the Condensed Phases of Parahydrogen

open access: yesApplied Sciences, 2022
Equilibrium physical properties of the solid and liquid phases of parahydrogen, computed by first principle computer simulations, are compared for different choices of pair-wise, spherically symmetric intermolecular potentials.
Jieru Hu, Massimo Boninsegni
doaj   +1 more source

Pd-based bimetallic catalysts for parahydrogen-induced polarization in heterogeneous hydrogenations [PDF]

open access: yesMagnetic Resonance, 2021
Production of hyperpolarized catalyst-free gases and liquids by heterogeneous hydrogenation with parahydrogen can be useful for various technical as well as biomedical applications, including in vivo studies, investigations of mechanisms of industrially ...
D. B. Burueva   +4 more
doaj   +1 more source

In Vivo Metabolic Imaging of [1-13C]Pyruvate-d3 Hyperpolarized By Reversible Exchange With Parahydrogen.

open access: yesAngewandte Chemie, 2023
Metabolic magnetic resonance imaging (MRI) using hyperpolarized (HP) pyruvate is becoming a non-invasive technique for diagnosing, staging, and monitoring response to treatment in cancer and other diseases. The clinically established method for producing
Henri de Maissin   +23 more
semanticscholar   +1 more source

Open-source, partially 3D-printed, high-pressure (50-bar) liquid-nitrogen-cooled parahydrogen generator [PDF]

open access: yesMagnetic Resonance, 2021
The signal of magnetic resonance imaging (MRI) can be enhanced by several orders of magnitude using hyperpolarization. In comparison to a broadly used dynamic nuclear polarization (DNP) technique that is already used in clinical trials, the parahydrogen (
F. Ellermann   +2 more
doaj   +1 more source

Over 20% Carbon-13 Polarization of Perdeuterated Pyruvate Using Reversible Exchange with Parahydrogen and Spin-Lock Induced Crossing at 50 μT.

open access: yesJournal of Physical Chemistry Letters, 2023
Carbon-13 hyperpolarized pyruvate is about to become the next-generation contrast agent for molecular magnetic resonance imaging of cancer and other diseases.
A. Schmidt   +10 more
semanticscholar   +1 more source

Hyperpolarized fumarate via parahydrogen [PDF]

open access: yesChemical Communications, 2018
We produce hyperpolarized [1-13C]fumarate in the proton nuclear spin singlet state by pairwise trans-addition of parahydrogen to a molecular precursor using a ruthenium-based catalyst in water.
Barbara Ripka   +5 more
openaire   +6 more sources

NMR Discrimination of d- and l-α-Amino Acids at Submicromolar Concentration via Parahydrogen-Induced Hyperpolarization

open access: yesJournal of the American Chemical Society, 2023
Differentiation of enantiomers represents an important research area for pharmaceutical, chemical, and food industries. However, enantiomer separation is a laborious task that demands complex analytical techniques, specialized equipment, and expert ...
Lennart Dreisewerd   +4 more
semanticscholar   +1 more source

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