Catalysis-Driven Self-Thermophoresis of Janus Plasmonic Nanomotors

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• 作者：Weiwei Qin ; Tianhuan Peng ; Yanjing Gao ; Fei Wang ; Xiaocai Hu ; Dr. Kun Wang ; Prof. Jiye Shi ; Prof. Di Li ; Prof. Jicun Ren and Prof. Chunhai Fan
• 刊名：Angewandte Chemie
• 出版年：2017
• 出版时间：January 9, 2017
• 年：2017
• 卷：129
• 期：2
• 页码：530-533
• 全文大小：1447K
• ISSN：1521-3757

文摘

It is highly demanding to design active nanomotors that can move in response to specific signals with controllable rate and direction. A catalysis-driven nanomotor was constructed by designing catalytically and plasmonically active Janus gold nanoparticles (Au NPs), which generate an asymmetric temperature gradient of local solvent surrounding NPs in catalytic reactions. The self-thermophoresis behavior of the Janus nanomotor is monitored from its inherent plasmonic response. The diffusion coefficient of the self-thermophoresis motion is linearly dependent on chemical reaction rate, as described by a stochastic model.