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Simultaneous acquisition of multi-nuclei enhanced NMR/MRI by solution-state dynamic nuclear polarization 被引量:2
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作者 Yugui He Zhen Zhang +4 位作者 Jiwen Feng Chongyang Huang Fang Chen Chaoyang Liu Maili Liu 《Science China Chemistry》 SCIE EI CAS CSCD 2016年第7期830-835,共6页
Dynamic nuclear polarization (DNP) has become a very important hyperpolarization method because it can dramatically increase the sensitivity of nuclear magnetic resonance (NMR) of various molecules. Liquid-state D... Dynamic nuclear polarization (DNP) has become a very important hyperpolarization method because it can dramatically increase the sensitivity of nuclear magnetic resonance (NMR) of various molecules. Liquid-state DNP based on Overhauser effect is capable of directly enhancing polarization of all kinds of nuclei in the system. The combination of simultaneous Overhauser multi-nuclei enhancements with the multi-nuclei parallel acquisitions provides a variety of important applications in both MR spectroscopy (MRS) and image (MRI). Here we present two simple illustrative examples for simultaneously enhanced multi-nuclear spectra and images to demonstrate the principle and superiority. We have observed very large simultaneous DNP enhancements for different nuclei, such as XH and 23Na, 1H and 31p, 19F and 31p, especially for the first time to report sodium ion enhancement in liquid. We have also obtained the simultaneous images of 19H and 31p, 19F and 31p at low field by solution-state DNP for the first time. 展开更多
关键词 dynamic nuclear polarization Overhauser effect simultaneous acquisition phosphorous and sodium ion DNP spectra phosphorous DNP image
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