优化溶解动态核极化
Optimizing dissolution dynamic nuclear polarization.
作者信息
Bornet Aurélien, Jannin Sami
机构信息
Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Batochime, CH-1015 Lausanne, Switzerland.
Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Batochime, CH-1015 Lausanne, Switzerland; Bruker BioSpin AG, Industriestrasse 26, 8117 Fällanden, Switzerland.
出版信息
J Magn Reson. 2016 Mar;264:13-21. doi: 10.1016/j.jmr.2015.12.007.
This article is a short review of some of our recent developments in dissolution dynamic nuclear polarization (d-DNP). We present the basic principles of d-DNP, and motivate our choice to step away from conventional approaches. We then introduce a modified d-DNP recipe that can be summed up as follows. (i) Using broad line polarizing agents to efficiently polarize 1H spins. (ii) Increasing the magnetic field to 6.7 T and above. (iii) Applying microwave frequency modulation. (iv) Applying (1)H-(13)C cross polarization. (v) Transferring hyperpolarized solution through a magnetic tunnel.
本文是对我们近期在溶解动态核极化（d-DNP）方面一些进展的简短综述。我们阐述了d-DNP的基本原理，并说明了我们选择背离传统方法的原因。然后我们介绍了一种改进的d-DNP方法，可总结如下：（i）使用宽线极化剂高效极化1H自旋；（ii）将磁场强度提高到6.7 T及以上；（iii）应用微波频率调制；（iv）应用1H-13C交叉极化；（v）通过磁隧道传输超极化溶液。
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