Zobrazeno 1 - 10
of 46
pro vyhledávání: '"James G. Kempf"'
Publikováno v:
Advanced Science, Vol 10, Iss 23, Pp n/a-n/a (2023)
Abstract Amino acids (AAs) and ammonia are metabolic markers essential for nitrogen metabolism and cell regulation in both plants and humans. NMR provides interesting opportunities to investigate these metabolic pathways, yet lacks sensitivity, espec
Externí odkaz:
https://doaj.org/article/55310ba5df55444e81d684fb326d7be9
Autor:
Morgan Ceillier, Olivier Cala, Théo El Daraï, Samuel F. Cousin, Quentin Stern, Sylvie Guibert, Stuart J. Elliott, Aurélien Bornet, Basile Vuichoud, Jonas Milani, Christophe Pages, Dmitry Eshchenko, James G. Kempf, Catherine Jose, Simon A. Lambert, Sami Jannin
Publikováno v:
Journal of Magnetic Resonance Open, Vol 8, Iss , Pp 100017- (2021)
Dissolution dynamic nuclear polarization (dDNP) has become a hyperpolarization method of choice for enhancing nuclear magnetic resonance (NMR) signals. Nuclear spins are polarized in solid frozen samples (in a so-called polarizer) that are subsequent
Externí odkaz:
https://doaj.org/article/581da5ee9831482d8560e33659de5fb9
Amino acids (AAs) and ammonia are metabolic markers essential for nitrogen metabolism and cell regulation in both plants and humans. NMR provides interesting opportunities to investigate these metabolic pathways, yet lacks sensitivity, especially in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0ee5ed1f0199a884c63056aebc24504
https://lirias.kuleuven.be/handle/20.500.12942/719772
https://lirias.kuleuven.be/handle/20.500.12942/719772
Publikováno v:
The Journal of Physical Chemistry Letters. 13:3516-3522
Hyperpolarization using signal amplification by reversible exchange (SABRE) relies on target molecules and parahydrogen coordinating to a transition metal catalyst. Identification of this coordinated state becomes increasingly important, especially s
Autor:
Ravi Shankar Palani, Michael Mardini, Leo Delage-Laurin, Daniel Banks, Yifu Ouyang, Eric Bryerton, James G. Kempf, Timothy M. Swager, Robert G. Griffin
Publikováno v:
J Phys Chem Lett
We recently used selective (2)H labeling of BDPA to investigate the Overhauser Effect (OE) dynamic nuclear polarization (DNP) mechanism in insulating solids doped with 1,3-bis(diphenylene)-2-phenylallyl (BDPA), and established that the α and γ (1)H
Autor:
James G. Kempf, Jonas Milani, Sami Jannin, Morgan Ceillier, Quentin Stern, Basile Vuichoud, Damien Montarnal, Marc Schnell, Dmitry Eshchenko, Samuel F. Cousin, Roberto Melzi, Théo El Daraï, Aurélien Bornet, Olivier Cala, Laurent Gremillard
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
Nature Communications
Nature Communications, 2021, 12 (1), ⟨10.1038/s41467-021-24279-2⟩
Nature Communications, Nature Publishing Group, 2021, 12 (1), ⟨10.1038/s41467-021-24279-2⟩
Nature Communications
Nature Communications, 2021, 12 (1), ⟨10.1038/s41467-021-24279-2⟩
Nature Communications, Nature Publishing Group, 2021, 12 (1), ⟨10.1038/s41467-021-24279-2⟩
Hyperpolarization by dissolution dynamic nuclear polarization (dDNP) has enabled promising applications in spectroscopy and imaging, but remains poorly widespread due to experimental complexity. Broad democratization of dDNP could be realized by remo
Autor:
Arnab Dey, Benoît Charrier, Karine Lemaître, Victor Ribay, Dmitry Eshchenko, Marc Schnell, Roberto Melzi, Quentin Stern, Samuel F. Cousin, James G. Kempf, Sami Jannin, Jean-Nicolas Dumez, Patrick Giraudeau
NMR based analysis of metabolite mixture provides crucial information on biological systems but mostly rely on 1D 1H experiments for maximizing sensitivity. However, strong peak overlap of 1H spectra often is a limitation for the analysis of inherent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd604ddf346d51e45358ad86dd71f038
https://doi.org/10.5194/mr-2022-14
https://doi.org/10.5194/mr-2022-14
Autor:
Roberto Melzi, James G. Kempf, Sami Jannin, Olivier Cala, Stuart J. Elliott, Samuel F. Cousin, Quentin Stern, Dmitry Eshchenko
Publikováno v:
Phys Chem Chem Phys
Physical Chemistry Chemical Physics
Physical Chemistry Chemical Physics
We have recently demonstrated the use of contactless radiofrequency pulse sequences under dissolution-dynamic nuclear polarization conditions as an attractive way of transferring polarization from sensitive 1H spins to insensitive 13C spins with low
Publikováno v:
The journal of physical chemistry letters. 13(15)
Hyperpolarization using signal amplification by reversible exchange (SABRE) relies on target molecules and parahydrogen coordinating to a transition metal catalyst. Identification of this coordinated state becomes increasingly important, especially s
Autor:
Jean-Max Tyburn, Eric Breynaert, Johan A. Martens, Ewoud Vaneeckhaute, David Kilgour, James G. Kempf, Francis Taulelle
Publikováno v:
The Journal of Physical Chemistry C. 124:14541-14549
Efficient, room temperature hyperpolarisation of exchangeable solvent protons combining parahydrogen (p-H2), ami-nopropyldiethoxymethylsilane (APDMS) and IrCl(COD)(IMES) to generate an active aminosilane-iridium complex, broadens the capabilities of