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Dr. Andrea Capozzi M. Sc. Saket Patel M. Sc. Christine Pepke Gunnarsson Dr. Irene Marco‐Rius Dr. Arnaud Comment Dr. Magnus Karlsson Dr. Mathilde H. Lerche Dr. Olivier Ouari Prof. Jan Henrik Ardenkjær‐Larsen 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2019,131(5):1348-1353
Free radicals generated by UV‐light irradiation of a frozen solution containing a fraction of pyruvic acid (PA) have demonstrated their dissolution dynamic nuclear polarization (dDNP) potential, providing up to 30 % [1‐13C]PA liquid‐state polarization. Moreover, their labile nature has proven to pave a way to nuclear polarization storage and transport. Herein, differently from the case of PA, the issue of providing dDNP UV‐radical precursors (trimethylpyruvic acid and its methyl‐deuterated form) not involved in any metabolic pathway was investigated. The 13C dDNP performance was evaluated for hyperpolarization of [U‐13C6,1,2,3,4,5,6,6‐d7]‐d ‐glucose. The generated UV‐radicals proved to be versatile and highly efficient polarizing agents, providing, after dissolution and transfer (10 s), a 13C liquid‐state polarization of up to 32 %. 相似文献
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Andreas Harthun Rüdiger Selke Joachim Bargon 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》1996,108(21):2666-2669
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