PEGylated WS(2) nanosheets as a multifunctional theranostic agent for in vivo dual-modal CT/photoacoustic imaging guided photothermal therapy.

Cheng, Liang; Liu, Jingjing; Gu, Xing; Gong, Hua; Shi, Xiaoze; Liu, Teng; Wang, Chao; Wang, Xiaoyong et al. · Adv Mater · 2014

basic_science · Level V

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Abstract

A new generation of photothermal theranostic agents is developed based on PEGylated WS2 nanosheets. Bimodal in vivo CT/photoacoustic imaging reveals strong tumor contrast after either intratumoral or intravenous injection of WS2 -PEG. In vivo photothermal treatment is then conducted in a mouse tumor model, achieving excellent therapeutic efficacy with complete ablation of tumors. This work promises further exploration of transition-metal dichalcogenides for biomedical applications, such as cancer imaging and therapy.

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