Results 41 to 50 of about 2,821 (200)

Radio-Frequency Sweeps at Microtesla Fields for Parahydrogen-Induced Polarization of Biomolecules. [PDF]

Journal of Physical Chemistry Letters, 2022
Magnetic resonance imaging of 13C-labeled metabolites enhanced by parahydrogen-induced polarization (PHIP) enables real-time monitoring of processes within the body.
A. Marshall, Alon Salhov, Martin Gierse, Christoph Müller, M. Keim, Sebastian Lucas, A. Parker, Jochen Scheuer, C. Vassiliou, P. Neumann, F. Jelezko, A. Retzker, J. Blanchard, I. Schwartz, S. Knecht   +14 more
semanticscholar   +1 more source

On the Possible “Supersolid” Character of Parahydrogen Clusters [PDF]

The Journal of Physical Chemistry A, 2011
We present results of a theoretical study of structural and superfluid properties of parahydrogen clusters comprising 25, 26 and 27 molecules at low temperature. The microscopic model utilized here is based on the Silvera-Goldman pair potential. Numerical results are obtained by means of Quantum Monte Carlo simulations, making use of the continuous ...
Mezzacapo, F., Boninsegni, M.
openaire   +4 more sources

SABRE Hyperpolarization with up to 200 bar Parahydrogen in Standard and Quickly Removable Solvents

International Journal of Molecular Sciences, 2023
Parahydrogen (p-H2)-based techniques are known to drastically enhance NMR signals but are usually limited by p-H2 supply. This work reports p-H2-based SABRE hyperpolarization at p-H2 pressures of hundreds of bar, far beyond the typical ten bar currently ...
Anton Duchowny, Johannes R. Denninger, L. Lohmann, T. Theis, Sören Lehmkuhl, A. Adams   +5 more
semanticscholar   +1 more source

Spying on parahydrogen-induced polarization transfer using a half-tesla benchtop MRI and hyperpolarized imaging enabled by automation

Nature Communications, 2023
Nuclear spin hyperpolarization is a quantum effect that enhances the nuclear magnetic resonance signal by several orders of magnitude and has enabled real-time metabolic imaging in humans.
Frowin Ellermann, Aidan Sirbu, A. Brahms, Charbel D Assaf, R. Herges, Jan‐Bernd Hövener, Andrey N. Pravdivtsev   +6 more
semanticscholar   +1 more source

Hyperpolarization of Nitrile Compounds Using Signal Amplification by Reversible Exchange

Molecules, 2020
Signal Amplification by Reversible Exchange (SABRE), a hyperpolarization technique, has been harnessed as a powerful tool to achieve useful hyperpolarized materials by polarization transfer from parahydrogen.
Sarah Kim, Sein Min, Heelim Chae, Hye Jin Jeong, Sung Keon Namgoong, Sangwon Oh, Keunhong Jeong   +6 more
doaj   +1 more source

Robust parahydrogen-induced polarization at high concentrations [PDF]

Science Advances
Parahydrogen-induced polarization (PHIP) is a potent technique for generating target molecules with high nuclear spin polarization. The PHIP process involves a chemical reaction between parahydrogen and a target molecule, followed by the transformation ...
L. Dagys, Martin C. Korzeczek, Anna J Parker, James Eills, John W Blanchard, C. Bengs, Malcolm H Levitt, S. Knecht, I. Schwartz, M. Plenio   +9 more
semanticscholar   +1 more source

Hyperpolarized Multi-organ Spectroscopy of Liver and Brain Using 1-^13C-Pyruvate Enhanced via Parahydrogen

Applied Magnetic Resonance, 2023
Hyperpolarization in nuclear magnetic resonance boosts the signals by several orders of magnitude. Using the singlet spin order of parahydrogen to create large non-equilibrium spin polarization is a fast approach to obtain hyperpolarized metabolites in ...
T. Hune, S. Mamone, A. Schmidt, Inês Mahú, Natascha D’Apolito, D. Wiedermann, Jens C. Brüning, S. Glöggler   +7 more
semanticscholar   +1 more source

Adsorption of parahydrogen on graphene [PDF]

Physical Review B, 2018
Replaced with published ...
Dusseault, Marisa, Boninsegni, Massimo
openaire   +2 more sources

1, 3-Butadienen Hydrogenation on Supported Pd-Sn Bimetallic Catalysts Investigated by Parahydrogen-induced Polarization

Chinese Journal of Magnetic Resonance, 2022
The selective hydrogenation of 1, 3-butadiene over Pd-Sn/Al2O3 bimetallic catalysts was investigated by heterogeneous parahydrogen-induced polarization (PHIP). A series of Pd1-Snx/Al2O3 bimetallic catalysts with different Pd/Sn ratios were synthesized by
Han HU, Wei-yu WANG, Jun XU, Feng DENG
doaj   +1 more source

Instrumentation for Hydrogenative Parahydrogen-Based Hyperpolarization Techniques

Analytical Chemistry, 2022
Graphical ...
A. Schmidt, C. Bowers, K. Buckenmaier, E. Chekmenev, Henri de Maissin, James Eills, Frowin Ellermann, S. Glöggler, J. Gordon, S. Knecht, I. Koptyug, Jule Kuhn, Andrey N. Pravdivtsev, F. Reineri, T. Theis, K. Them, Jan‐Bernd Hövener   +16 more
semanticscholar   +1 more source