Porous functionalized polymers enable generating and transporting hyperpolarized mixtures of metabolites

Autor: Théo El Daraï, Samuel F. Cousin, Quentin Stern, Morgan Ceillier, James Kempf, Dmitry Eshchenko, Roberto Melzi, Marc Schnell, Laurent Gremillard, Aurélien Bornet, Jonas Milani, Basile Vuichoud, Olivier Cala, Damien Montarnal, Sami Jannin

Publikováno v: Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)

Hyperpolarization by dissolution dynamic nuclear polarization has brought highly sensitive magnetic resonance to reality but there still remains severe limitations. Here the authors show an approach relying on the generation of hyperpolarizing polyme

Externí odkaz: https://doaj.org/article/e1ff3330ff914a36ad97016ab4dbc720

An automated system for fast transfer and injection of hyperpolarized solutions

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

Porous functionalized polymers enable generating and transporting hyperpolarized mixtures of metabolites

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⟩

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

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8486056b9654845c3f8afed217cfb14
https://doaj.org/article/e1ff3330ff914a36ad97016ab4dbc720

Occurrence of 2-Acetyl-1-pyrroline and Its Nonvolatile Precursors in Celtuce (Lactuca sativa L. var. augustana)

Autor: Xiu-Feng He, Christian Starkenmann, Basile Vuichoud, Yvan Niclass, Sebastien Schweizer

Publikováno v: Journal of Agricultural and Food Chemistry. 67:11710-11717

Lactuca sativa L. var. augustana has a basmati rice-like odor with a green note in the background. This typical odor is due to the release of 2-acetyl-1-pyrroline (2-AP) after heating, which is confirmed by volatile analysis. Recent metabolomic and g

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7ae331dc89b86f5d6136f88bbcc9a64a
https://doi.org/10.1021/acs.jafc.9b05434

Dynamic Nuclear Polarization of Long-Lived Nuclear Spin States in Methyl Groups

Autor: Malcolm H. Levitt, Jean-Nicolas Dumez, Daniele Mammoli, Geoffrey Bodenhausen, Aurélien Bornet, Benno Meier, Gabriele Stevanato, Arthur C. Pinon, Basile Vuichoud, Sami Jannin

Publikováno v: Journal of Physical Chemistry Letters
Journal of Physical Chemistry Letters, 2017, 8 (15), pp.3549-3555. ⟨10.1021/acs.jpclett.7b01512⟩
The Journal of Physical Chemistry Letters
Journal of Physical Chemistry Letters, American Chemical Society, 2017, 8 (15), pp.3549-3555. ⟨10.1021/acs.jpclett.7b01512⟩

The authors thank Lyndon Emsley for making means available.; International audience; We have induced hyperpolarized long-lived states in compounds containing C-13-bearing methyl groups by dynamic nuclear polarization (DNP) at cryogenic temperatures,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28eef9fbbec1fec88c24b7dde63ca407
https://doi.org/10.1021/acs.jpclett.7b01512