Hyperpolarization via dissolution dynamic nuclear polarization: new technological and methodological advances

Arthur César Pinon, Andrea Capozzi, Jan Henrik Ardenkjær-Larsen*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

Dissolution-DNP is a method to boost liquid-state NMR sensitivity by several orders of magnitude. The technique consists in hyperpolarizing samples by solid-state dynamic nuclear polarization at low temperature and moderate magnetic field, followed by an instantaneous melting and dilution of the sample happening inside the polarizer. Although the technique is well established and the outstanding signal enhancement paved the way towards many applications precluded to conventional NMR, the race to develop new methods allowing higher throughput, faster and higher polarization, and longer exploitation of the signal is still vivid. In this work, we review the most recent advances on dissolution-DNP methods trying to overcome the original technique's shortcomings. The review describes some of the new approaches in the field, first, in terms of sample formulation and properties, and second, in terms of instrumentation.
Original languageEnglish
JournalMagnetic Resonance Materials in Physics, Biology and Medicine
Volume34
Pages (from-to)5-23
ISSN0968-5243
DOIs
Publication statusPublished - 2021

Keywords

  • Hyperpolarization
  • Dynamic nuclear polarization
  • dDNP
  • Non-persistent radicals
  • Cross-polarization
  • Cryogen-free
  • Bullet-DNP

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