Publication

Boosting Dissolution Dynamic Nuclear Polarization by Cross Polarization

Geoffrey Bodenhausen, Aurélien Bornet, Sami Jannin, Angel Joaquin Perez Linde
2013
Journal Articles

Abstract

The efficiency of dissolution dynamic nuclear polarization can be boosted by Hartmann-Hahn cross polarization at temperatures near 1.2 K. This enables high throughput of hyperpolarized solutions with substantial gains in buildup times and polarization levels. During dissolution and transport, the C-13 nuclear spin polarization P(C-13) merely decreases from 45 to 40%.

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https://infoscience.epfl.ch/entities/publication/3a9de79e-4203-456d-abf8-caa2f90bf82a

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Geoffrey Bodenhausen, Aurélien Bornet, Sami Jannin, Angel Joaquin Perez Linde
2013
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/3a9de79e-4203-456d-abf8-caa2f90bf82a

About this result

Related concepts (9)

Nuclear magnetic resonance

Nuclear magnetic resonance (NMR) is a physical phenomenon in which nuclei in a strong constant magnetic field are perturbed by a weak oscillating magnetic field (in the near field) and respond by producing an electromagnetic signal with a frequency characteristic of the magnetic field at the nucleus. This process occurs near resonance, when the oscillation frequency matches the intrinsic frequency of the nuclei, which depends on the strength of the static magnetic field, the chemical environment, and the magnetic properties of the isotope involved; in practical applications with static magnetic fields up to ca.

Nuclear Overhauser effect

The nuclear Overhauser effect (NOE) is the transfer of nuclear spin polarization from one population of spin-active nuclei (e.g. 1H, 13C, 15N etc.) to another via cross-relaxation. A phenomenological definition of the NOE in nuclear magnetic resonance spectroscopy (NMR) is the change in the integrated intensity (positive or negative) of one NMR resonance that occurs when another is saturated by irradiation with an RF field. The change in resonance intensity of a nucleus is a consequence of the nucleus being close in space to those directly affected by the RF perturbation.

Solid-state nuclear magnetic resonance

Solid-state NMR (ssNMR) spectroscopy is a technique for characterizing atomic level structure in solid materials e.g. powders, single crystals and amorphous samples and tissues using nuclear magnetic resonance (NMR) spectroscopy. The anisotropic part of many spin interactions are present in solid-state NMR, unlike in solution-state NMR where rapid tumbling motion averages out many of the spin interactions.

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