过渡金属硫族化物纳米片的制备与生物应用

过渡金属硫族化物（TMDCs）是一类类石墨烯材料，具有高近红外吸收率，因此常被用作肿瘤光热治疗（PTT）过程中的光热剂以及光声成像（PAI）中的造影剂.TMDCs大多数情况下以二维纳米片的形式存在，具有更大的比表面积和更多的活性位点，可以通过负载不同功能的纳米小颗粒、药物小分子或生物大分子来赋予材料更多的可能性.文章主要介绍了TMDCs的合成与修饰，总结了常用的几种合成方法及其优缺点，以及该纳米材料在肿瘤诊疗中的一些应用.

The synthesis and biological application of transition metal dichalcogenide nanosheets

Transition metal dichalcogenides(TMDCs) are a kind of graphene-like materials with high near-infrared absorption,which are used as the photothermal therapy(PTT) agents and the contrast agents for photoacoustic imaging(PAI). TMDCs mostly are in the form of two-dimensional nanosheets with larger specific surface area and more active sites,which can provide more possibilities by loading nanoparticles,drug molecules or biological macromolecules with different functions. The article mainly introduces the synthesis and modification of TMDCs and summarizes several common synthetic methods,their advantages and disadvantages,and some applications in tumor diagnosis and treatment.