期刊
ADVANCES IN PHYSICS-X
卷 4, 期 1, 页码 -出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/23746149.2019.1602480
关键词
Active matter; motors; diffusiophoresis; microreversibility; fluctuation formulas; collective behavior
资金
- Fonds De La Recherche Scientifique - FNRS [PDRsimilar toT.0094.16]
- Natural Sciences and Engineering Research Council of Canada
Colloidal motors with micrometer dimensions and no moving parts can be propelled by self-diffusiophoresis. Coupling between molecular concentration gradients generated by asymmetric surface chemical reactions and the velocity slip between colloidal particle and the surrounding fluid solution is responsible for propulsion. The interfacial properties involved in this propulsion mechanism can be described by nonequilibrium thermodynamics and statistical mechanics, disclosing the fundamental role of microreversibility in the coupling between motion and reaction. Among other phenomena, the approach predicts that propulsion by fuel consumption has the reciprocal effect of fuel synthesis by mechanical action. [GRAPHICS] .
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