Dynamic Nuclear Polarization Surface Enhanced NMR spectroscopy has been demonstrated to significantly improve NMR sensitivity on materials by 1 to 2 orders of magnitude at high magnetic fields. The preferential surface enhancement also allows for selectively probing the solid surface. In this review, we will briefly describe the main mechanism used nowadays, i.e. cross effect, for DNP enhanced solid-state NMR. We will show the typical protocols of sample formulation leading to effective DNP surface enhancements and the key experimental factors in performing DNP SENS experiments. Other important developments in DNP, i.e. shielded polarizing agents for reactive surfaces, hyperpolarizing solid matrices, and high-temperature and high-field DNP, will be discussed as well. Finally, we close the review with a short summary and our perspectives on the directions of future developments in this field.

动态核极化表面增强NMR光谱已被证明可以在高磁场下将材料上的NMR灵敏度显着提高1-2个数量级。优先的表面增强还允许选择性地探测固体表面。在这篇综述中，我们将简要描述当今用于DNP增强固态NMR的主要机理，即交叉效应。我们将展示导致有效DNP表面增强的典型样品配方方案，以及执行DNP SENS实验的关键实验因素。DNP的其他重要发展，即还将讨论用于反应性表面的屏蔽偏振剂，超极化固体基质以及高温高场DNP。最后，我们以简短的总结和对这一领域未来发展方向的观点来结束本综述。