期刊
ACS NANO
卷 11, 期 6, 页码 5633-5645出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.7b01032
关键词
multimodal imaging photothermal therapy; ternary semiconductors; ultrasmall nanocrystals; magnetic CuFeSe2
类别
资金
- National Natural Science Foundation of China [81471657, 81527901]
- 1000 Plan for Young Talents
- Jiangsu Specially Appointed Professorship
- Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection
- Priority Academic Development Program of Jiangsu Higher Education Institutions (PAPD)
Nanoscale ternary chalcogenides have attracted intense research interest due to their wealth of tunable properties and diverse applications in energy and environmental and biomedical fields. In this article, ultrasmall magnetic CuFeSe2 ternary nanocrystals (<5.0 nm) were fabricated in the presence of thiol-functionalized poly(methacrylic acid) by an environmentally friendly aqueous method under ambient conditions. The small band gap and the existence of intermediate bands lead to a broad MR absorbance in the range of 500-1100 nm and high photothermal conversion efficiency (82%) of CuFeSe2 nanocrystals. The resultant CuFeSe2 nanocrystals show superparamagnetism and effective attenuation for X-rays. In addition, they also exhibit excellent water solubility, colloidal stability, biocompatibility, and multifunctional groups. These properties enable them to be an ideal nanotheranostic agent for multimodal imaging [e.g., photoacoustic imaging (PAI), magnetic resonance imaging (MRI), computed tomography (CT) imaging] guided photothermal therapy of cancer.
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