CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Preparation of gold tetrananocages and their photothermal effect |
Yin Nai-Qiang (尹乃强)a, Liu Ling (刘玲)a, Lei Jie-Mei (雷洁梅)a, Jiang Tong-Tong (蒋童童)a, Zhu Li-Xin (朱立新)b, Xu Xiao-Liang (许小亮)a |
a Department of Physics, University of Science and Technology of China, Hefei 230026, China;
b Center Laboratory, First Affiliated Hospital of Anhui Medical University, Hefei 230022, China |
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Abstract A gold tetrahedral nanocage, i.e., a tetrananocage, that converts near-infrared (NIR) light into heat was fabricated by using a simple method. Silver tetrahedra with good homogeneity and dispersity were synthesized by a hydrothermal route. Gold tetrananocages were obtained using a galvanic replacement reaction between Ag tetrahedra and HAuCl4 solution. The surface plasmon resonance (SPR) of gold tetrananocages was tuned from 412 nm to 850 nm through controlling the volume of HAuCl4 solution added. This Au tetrananocage can effectively convert NIR light into heat when the SPR couples with the exciting light. When cancer cells are cultured with the gold tetrananocages for several hours and irradiated, the gold tetrananocages destroy the cancer cells effectively and demonstrate themselves to be a good candidate for combating cancer.
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Received: 13 January 2013
Revised: 18 April 2013
Accepted manuscript online:
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PACS:
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75.75.-c
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(Magnetic properties of nanostructures)
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78.20.nb
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(Photothermal effects)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 51272246 and 81172082) and the Fundamental Research Funds for the Central Universities of China (Grant No. 2030000001). |
Corresponding Authors:
Zhu Li-Xin, Xu Xiao-Liang
E-mail: lx-zhu@163.com; xlxu@ustc.edu.cn
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Cite this article:
Yin Nai-Qiang (尹乃强), Liu Ling (刘玲), Lei Jie-Mei (雷洁梅), Jiang Tong-Tong (蒋童童), Zhu Li-Xin (朱立新), Xu Xiao-Liang (许小亮) Preparation of gold tetrananocages and their photothermal effect 2013 Chin. Phys. B 22 097502
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