稀土纳米粒子作为磁共振成像造影剂的研究进展

Recent progress of rare earth nanoparticles as magnetic resonance imaging contrast agents

镧系元素拥有独特的4f外层电子结构,从而使其具有独特的光学和磁学性质.利用具有磁学性质的镧系元素合成的稀土纳米粒子被广泛用作磁共振成像造影剂.主要总结了近年来磁性稀土纳米粒子的种类、合成方法及不同系列(T_1,T_2)的磁共振成像造影剂的应用现状,并展望了其前景.

Rare earth ions,owing to their unique 4f electron configurations,exhibit unique optical and magnetic properties. These rare earth nanoparticles are widely used as magnetic resonance imaging contrast agents. This paper reviews the classification,syn-thesis methods,and applications for magnetic resonance imaging of rare earth nanoparticles and makes some outlook.