Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 56, Issue 2, Pages 515-518Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201609121
Keywords
Janus nanoparticles; nanomotors; plasmons; thermophoresis
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Funding
- National Basic Research Program of China [2013CB932803, 2013CB933800, 2016YFA0201200]
- NSFC [21227804, 21390414, 21329501, 21675166]
- Youth Innovation Promotion Association, CAS [2013174]
- CAS [QYZDJ-SSW-SLH031]
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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 (AuNPs), 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.
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