Enhancement of surface and biological magnetic resonance using laser-polarized noble gases
Enhancement of surface and biological magnetic resonance using laser-polarized noble gases
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使用激光偏振惰性气体增强表面和生物磁共振
DOI：
10.1002/(sici)1099-0534(1999)11:5
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
E. Brunner
中科院分区：
文献类型：
--
作者：
E. Brunner
激光极化的惰性气体核，如3 He或129 He，是远离热平衡的自旋系统。它们增强的核自旋极化导致核磁共振（NMR）实验中相应的灵敏度增益。本文综述了激光偏振惰性气体应用的最新进展，特别是在表面和生物磁共振方面。介绍了产生激光偏振惰性气体的基本过程--光抽运和自旋交换。在连续流动和魔角旋转条件下，使用激光偏振的129 nS的表面NMR的增强被证明。本文描述了激光极化129 ~* 核向其它核的自旋极化转移。激光偏振惰性气体在生物磁共振中的重要性日益增加，它们在临床磁共振成像中的应用特别令人感兴趣。还讨论了激光偏振129氘在溶液NMR光谱中的应用，特别是关于生物相关的系统。©1999 John Wiley & Sons，Inc. Concepts Magn Reson 11：313-335，1999
Laser-polarized noble gas nuclei such as 3He or 129Xe are spin systems far from thermal equilibrium. Their enhanced nuclear spin polarization results in a corresponding sensitivity gain in nuclear magnetic resonance (NMR) experiments. Recent developments in the application of laser-polarized noble gases are summarized in the present article, especially with respect to surface and biological magnetic resonance. Optical pumping and spin exchange, basic processes for the production of laser-polarized noble gases, are described. The enhancement of surface NMR using laser-polarized 129Xe under continuous flow and magic angle spinning conditions is demonstrated. Spin polarization transfer from laser-polarized 129Xe nuclei to other nuclei is described. Laser-polarized noble gases are of increasing importance in biological magnetic resonance; their use in clinical magnetic resonance imaging is of special interest. Applications of laser-polarized 129Xe in solution NMR spectroscopy are also discussed, especially with respect to systems of biological relevance. ©1999 John Wiley & Sons, Inc. Concepts Magn Reson 11: 313–335, 1999
影响因子：
19.7
作者：
MacFall, JR;Charles, HC;Ravin, CE
通讯作者：
Ravin, CE
影响因子：
2.9
作者：
TILTON, RF;KUNTZ, ID;PETSKO, GA
通讯作者：
PETSKO, GA