title: Hyperpolarization of deuterated metabolites via remote cross-polarization and dissolution dynamic nuclear polarization.
abstract: In deuterated molecules such as [1-(13)C]pyruvate-d3, the nuclear spin polarization of (13)C nuclei can be enhanced by combining Hartmann-Hahn cross-polarization (CP) at low temperatures (1.2 K) with dissolution dynamic nuclear polarization (D-DNP). The polarization is transferred from remote solvent protons to the (13)C spins of interest. This allows one not only to slightly reduce build-up times but also to increase polarization levels and extend the lifetimes T1((13)C) of the enhanced (13)C polarization during and after transfer from the polarizer to the NMR or MRI system. This extends time scales over which metabolic processes and chemical reactions can be monitored.
authors.affiliation: Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne , 1015 Lausanne, Switzerland.
authors.forename: Basile
authors.initials: B
authors.lastname: Vuichoud
authors.forename: Jonas
authors.initials: J
authors.lastname: Milani
authors.forename: Aurélien
authors.initials: A
authors.lastname: Bornet
authors.forename: Roberto
authors.initials: R
authors.lastname: Melzi
authors.forename: Sami
authors.initials: S
authors.lastname: Jannin
authors.forename: Geoffrey
authors.initials: G
authors.lastname: Bodenhausen
mesh_terms: D003903:Deuterium / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D011522:Protons; D019289:Pyruvic Acid / Q000737:chemistry*; D013696:Temperature
chemical_list: D011522:Protons; D019289:Pyruvic Acid; D003903:Deuterium