中文摘要：

纳米金刚石具有优异的力学、热学、光学性质，大的比表面积和可变的表面结构等特点，有广阔的应用前景。介绍了纳米金刚石的结构及其稳定性，综述了解除纳米金刚石的团聚和对其进行表面功能化的主要方法及其意义，评述了纳米金刚石在润滑油添加剂、复合材料、生物医学影像等领域的研究进展及应用前景。

英文摘要：

Nanodiamonds have promising applications in many areas due to their excellent mechanical, thermal, and optical properties, combined with high specific surface areas and alterable surface structures. The structures of nanodia- monds, as well as their stabilities, are introduced. The typical methods for de-aggregation and surface functionalization of nanodiamonds are summarized, and the advances of investigations and potential applications in the fields of lubricant addi tives, composites, biomedical imaging, etc. are reviewed.