光热治疗
材料科学
纳米棒
层状双氢氧化物
光热效应
纳米技术
纳米结构
氢氧化物
纳米材料
溴化铵
化学工程
肺表面活性物质
工程类
作者
Kun Ma,Yawen Li,Zhenguo Wang,Yuzhi Chen,Xin Zhang,Chun-Yuan Chen,Hao Yu,Jia Huang,Zhao Yang,Xuefei Wang,Zhuo Wang
标识
DOI:10.1021/acsami.9b10373
摘要
Photothermal conversion efficiency (η) of gold nanorods (GNRs) can be tuned by enlarging the aspect ratio and forming the core-shell structure. Herein, an easy synthesis method is developed to construct the core-shell GNR@LDH nanostructure with GNRs and layered double hydroxides (LDHs). The interaction between Au and LDHs results some electron deficiency on the surface of Au and the more electrons induce more thermal energy conversion. The η value of GNR@LDH can reach up to 60% under the 808 nm laser irradiation, which is a significant enhanced conversion efficiency compared with the reported GNR-based photothermal therapy materials. CTAB (cetyltrimethyl ammonium bromide) can be replaced totally during the synthesis process, and GNRs maintain a good dispersion in LDHs. This core-shell composite GNR@LDH can be applied in photothermal, antibacterial, tumor therapy and biological imaging with low dosage and nontoxicity.
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