期刊
NATURE COMMUNICATIONS
卷 8, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms15757
关键词
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资金
- European Union's Horizon European Research Council (ERC Consolidator Grant) [682574]
- Swiss National Science Foundation [PP00P2_133562]
- Centre d'Imagerie BioMedicale (CIBM) of the UNIL
- UNIGE
- HUG
- CHUV
- EPFL
- Leenards Foundation
- Jeantet Foundation
- European Research Council (ERC) [682574] Funding Source: European Research Council (ERC)
- Swiss National Science Foundation (SNF) [PP00P2_133562] Funding Source: Swiss National Science Foundation (SNF)
Hyperpolarization via dynamic nuclear polarization (DNP) is pivotal for boosting magnetic resonance imaging (MRI) sensitivity and dissolution DNP can be used to perform in vivo real-time C-13 MRI. The type of applications is however limited by the relatively fast decay time of the hyperpolarized spin state together with the constraint of having to polarize the C-13 spins in a dedicated apparatus nearby but separated from the MRI magnet. We herein demonstrate that by polarizing C-13 with photo-induced radicals, which can be subsequently annihilated using a thermalization process that maintains the sample temperature below its melting point, hyperpolarized C-13-substrates can be extracted from the DNP apparatus in the solid form, while maintaining the enhanced C-13 polarization. The melting procedure necessary to transform the frozen solid into an injectable solution containing the hyperpolarized C-13-substrates can therefore be performed ex situ, up to several hours after extraction and storage of the polarized solid.
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