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技術文章

測量應用案例-20220706

閱讀:89          發布時間:2022-7-26
 

文獻名: Bi19S27I3 nanorods: a new candidate for photothermal therapy in the first and second biological near-infrared windows

 

 

作者 Jinsong Xiong, a   Qinghuan Bian, a   Shuijin Lei,  a   Yatian Deng,a   Kehan Zhao,a   Shunqiang Sun,a   Qi Fu,a   Yanhe Xiaoa  and  Baochang Cheng a  

a School of Materials Science and Engineering, Nanchang University, Nanchang, Jiangxi 330031, P. R. China

 

摘要:Near-infrared (NIR) light-induced photothermal cancer therapy using nanomaterials as photothermal agents has attracted considerable research interest over the past few years. As the key factor in photothermal therapy systems, a variety of photothermal agents have been developed. However, the exploration of novel photothermal therapy nanoplatforms with high NIR absorption remains a significant challenge, especially those working in both NIR-I and NIR-II windows. In this work, Bi19S27I3 nanorods with remarkably high absorption covering the whole visible light to the entire NIR-I and NIR-II regions have been successfully prepared through a facile solvothermal approach. The as-synthesized Bi19S27I3 nanorods have a high photothermal conversion efficiency of 42.7% at 808 nm (NIR-I) and 41.5% at 1064 nm (NIR-II), making them a promising candidate for photothermal therapy. In vitro cell viability assay reveals that the Bi19S27I3 sample has good biocompatibility and exhibits significant cell-killing effect under NIR irradiation. In vivo anti-tumor experiments demonstrate that the tumor growth can be effectively inhibited by fatal hyperthermia ablation mediated by Bi19S27I3 nanorods under the irradiation of an 808 nm or 1064 nm laser. Therefore, this study should be primarily beneficial for the development of new materials for NIR photothermal therapy applications.

 

 

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