Catalysis‐Driven Self‐Thermophoresis of Janus Plasmonic Nanomotors. (6th December 2016)

• Record Type: Journal Article
• Authors: Qin, Weiwei; Peng, Tianhuan; Gao, Yanjing; Wang, Fei; Hu, Xiaocai; Wang, Kun; Shi, Jiye; Li, Di; Ren, Jicun; Fan, Chunhai
• Is Part Of: Angewandte Chemie. Volume 129:Number 2(2017)
• Page Start: 530
• Page End: 533
• Publication Date: 2016-12-06
• Subjects: Janus-Nanopartikel -- Nanomotoren -- Plasmonen -- Thermophorese; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201609121
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: 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.