期刊
NANO LETTERS
卷 19, 期 2, 页码 1179-1189出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.8b04618
关键词
Ammonium tungsten bronze; tellurium oxide; photothermal therapy; the second NIR window; two-dimensional nanomaterials; multimodal imaging
类别
资金
- Major Program of the National Natural Science Foundation of China [20180740, 21890742]
- National Natural Science Foundation of China [21801012]
- Special Foundation for the State Major Research Program of China [2016YFC0106602, 2016YFC0106601]
- Fundamental Research Funds for the Central Universities [FRF-BR-17-001A]
Developing nanophotothermal agents (PTAs) with satisfied photothermal conversion efficiency (PTCE) in the second NIR window (1000-1350 nm, NIR II) holds great promise for enhanced photothermal therapy effect. Herein, we develop a NIR-II PTA with advanced PTCE, based on a new two-dimensional ultrathin tellurium oxide/ammonium tungsten bronze (TeO2/(NH4)(x)WO3) nanoribbons (TONW NRs). The doped ammonia ions-mediated-free-electrons injection into the lowest unoccupied molecular orbital band of WO3 combined with the electronic transitions between W6+ ions and the lone pair of electrons in Te atoms achieve excellent NIR absorption of TONW NRs resulting from localized surface plasmon resonance. The polyethylene glycol functionalized TONW NRs (PEG-TONW NRs) exhibit good stability and biocompatibility, displaying a PTCE high to 43.6%, surpassing many previous nano-PTAs active in the NIR II region, leading to remarkable tumor ablation ability both in vitro and in vivo. Meanwhile, advanced X-ray computed tomography (CT) and photoacoustic (PA) imaging capability of PEG-TONW NRs were also realized. Given the admirable photothermal effect in NIR II region, good biocompatibility, and advanced CT/PA imaging diagnosis capability, the novel PEG-TONW NRs is promising in future personalized medicine applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据