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Tailored Microstructured Hyperpolarizing Matrices for Optimal Magnetic Resonance Imaging
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-03-15 , DOI: 10.1002/anie.201801009
Matthieu Cavaillès 1 , Aurélien Bornet 2 , Xavier Jaurand 3 , Basile Vuichoud 4 , David Baudouin 1 , Mathieu Baudin 5, 6 , Laurent Veyre 1 , Geoffrey Bodenhausen 5, 6 , Jean-Nicolas Dumez 7 , Sami Jannin 4 , Christophe Copéret 8 , Chloé Thieuleux 1
Affiliation  

Tailoring the physical features and the porous network architecture of silica‐based hyperpolarizing solids containing TEMPO radicals, known as HYPSO (hybrid polarizing solids), enabled unprecedented performance of dissolution dynamic nuclear polarization (d‐DNP). High polarization values up to P(1H)=99 % were reached for samples impregnated with a mixture of H2O/D2O and loaded in a 6.7 T polarizer at temperatures around 1.2 K. These HYPSO materials combine the best performance of homogeneous DNP formulations with the advantages of solid polarizing matrices, which provide hyperpolarized solutions free of any—potentially toxic—additives (radicals and glass‐forming agents). The hyperpolarized solutions can be expelled from the porous solids, filtered, and rapidly transferred either to a nuclear magnetic resonance (NMR) spectrometer or to a magnetic resonance imaging (MRI) system.

中文翻译:

量身定制的微结构超极化矩阵,用于最佳磁共振成像

定制包含TEMPO自由基的二氧化硅基超极化固体的物理特征和多孔网络结构,称为HYPSO(混合极化固体),可实现前所未有的溶解动态核极化(d- DNP)性能。用H 2 O / D 2混合物浸渍的样品达到高达P1 H)= 99%的高极化值O,并在约1.2 K的温度下加载到6.7 T偏振器中。这些HYPSO材料结合了均质DNP配方的最佳性能和固体偏振矩阵的优势,该矩阵偏振解决方案可提供不含任何可能有毒的添加剂(自由基和玻璃添加剂)的超极化溶液。成型剂)。超极化溶液可以从多孔固体中排出,过滤并快速转移到核磁共振(NMR)光谱仪或磁共振成像(MRI)系统中。
更新日期:2018-03-15
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