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Gold nanocages for effective photothermal conversion and related applications
Chemical Science ( IF 7.6 ) Pub Date : 2020-10-19 , DOI: 10.1039/d0sc05146b
Jichuan Qiu 1, 2, 3, 4 , Minghao Xie 3, 4, 5, 6 , Tong Wu 1, 2, 3, 4 , Dong Qin 3, 4, 6, 7 , Younan Xia 1, 2, 3, 4, 5
Affiliation  

Gold nanocages (AuNCs) are a class of hollow nanocrystals with ultrathin and porous walls made of Au or Au-based alloys. When interacting with light, AuNCs exhibit a large absorption cross section and a high efficiency for light-to-heat conversion, making them effective photothermal transducers. Significantly, their absorption peak can be easily and precisely tuned through the visible and near-infrared regions to optimize their interaction with light of different wavelengths. As an inorganic nanomaterial, AuNCs have much better photo-stability compared to conventional organic dyes. This perspective summarizes recent progress in controlling the synthesis of AuNCs, together with their use in applications involving photothermal conversion. In the synthesis part, we pay particular attention to the strategies developed for tuning their size, shape, and composition, as well as the thickness and porosity of the walls. We then discuss the photothermal properties of AuNCs in terms of both theoretical calculations and experimental measurements, followed by a number of examples to highlight their applications in the context of light detection, water evaporation, phase transition, controlled release, and photothermal therapy. At the end, we offer some perspectives on the challenges and opportunities with respect to both the synthesis and application of AuNCs.

中文翻译:

用于有效光热转化的金纳米笼及其相关应用

金纳米笼(AuNC)是一类中空纳米晶体,具有超薄的多孔壁,由Au或Au基合金制成。当与光相互作用时,AuNCs具有较大的吸收截面和高效率的光热转换,使其成为有效的光热转换器。重要的是,它们的吸收峰可以通过可见光和近红外区域轻松精确地调节,以优化它们与不同波长的光的相互作用。与传统的有机染料相比,AuNCs作为无机纳米材料具有更好的光稳定性。该观点总结了控制AuNCs合成的最新进展,以及它们在涉及光热转化的应用中的使用。在综合部分,我们特别注意为调整尺寸,形状,组成,壁的厚度和孔隙率。然后,我们从理论计算和实验测量两个方面讨论了AuNCs的光热特性,然后举了许多实例来突出它们在光检测,水蒸发,相变,控释和光热疗法中的应用。最后,我们就AuN​​C的合成和应用方面的挑战和机遇提供了一些观点。控释和光热疗法。最后,我们就AuN​​C的合成和应用方面的挑战和机遇提供了一些观点。控释和光热疗法。最后,我们就AuN​​C的合成和应用方面的挑战和机遇提供了一些观点。
更新日期:2020-11-17
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