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research article
Low-temperature cross polarization in view of enhancing dissolution Dynamic Nuclear Polarization in NMR
Dynamic Nuclear Polarization (DNP) induced by saturation of ESR transitions of TEMPO at 1.2 K and 3.35 T is characterized by build-up rates that are typically 5 times faster for protons than for the carboxylic carbon-13 in acetate. We show that cross polarization from protons to carbon-13 allows one to achieve a polarization P(C-13) >20% in less than 10 min, twice as much as has been previously reported, in one-fifth of the time. This should open the way to an unprecedented improvement in the efficiency of dissolution DNP. (C) 2011 Elsevier B.V. All rights reserved.
Type
research article
Web of Science ID
WOS:000299018200022
Authors
Publication date
2011
Publisher
Published in
Volume
517
Issue
4-6
Start page
234
End page
236
Subjects
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
November 28, 2011
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