3 years ago

Monodisperse Dual Plasmonic Au@Cu2–xE (E= S, Se) Core@Shell Supraparticles: Aqueous Fabrication, Multimodal Imaging, and Tumor Therapy at in Vivo Level

Monodisperse Dual Plasmonic Au@Cu2–xE (E= S, Se) Core@Shell Supraparticles: Aqueous Fabrication, Multimodal Imaging, and Tumor Therapy at in Vivo Level
Chao Chen, Yong Wang, Hui Zhu, Yunsheng Xia, Jianfeng Zeng, Mingrou Ma, Mingyuan Gao, Shuzhou Li
We herein report aqueous fabrication of well-defined Au@Cu2–xE (E = S, Se) core@shell dual plasmonic supraparticles (SPs) for multimodal imaging and tumor therapy at the in vivo level. By means of a modified self-limiting self-assembly based strategy, monodisperse core@shell dual plasmonic SPs, including spherical Au@Cu2–xS SPs, Au@Cu2–xSe SPs, and rod-like Au@Cu2–xS SPs, are reliably and eco-friendly fabricated in aqueous solution. Due to plasmonic coupling from the core and shell materials, the as-prepared hybrid products possess an extremely large extinction coefficient (9.32 L g–1 cm–1 for spherical Au@Cu2–xS SPs) at 808 nm, which endows their excellent photothermal effect. Furthermore, the hybrid core@shell SPs possess the properties of good biocompatibility, low nonspecific interactions, and high photothermal stability. So, they show favorable performances for photoacoustic imaging and X-ray computed tomography imaging as well as photothermal therapy of tumors, indicating their application potentials in biological field.

Publisher URL: http://dx.doi.org/10.1021/acsnano.7b03369

DOI: 10.1021/acsnano.7b03369

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