- Abstract:
-
The propulsion velocity of active colloids that asymmetrically catalyze a chemical reaction is probed experimentally as a function of their sizes. It is found that over the experimentally accessible range, the velocity decays as a function of size, with a rate that is compatible with an inverse size dependence. A diffusion-reaction model for the concentrations of the fuel and waste molecules that takes into account a two-step process for the asymmetric catalytic activity on the surface of the...
Expand abstract - Publisher copy:
- 10.1103/physreve.85.020401
-
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- Journal:
- Physical review. E, Statistical, nonlinear, and soft matter physics
- Volume:
- 85
- Issue:
- 2 Pt 1
- Pages:
- 020401
- Publication date:
- 2012-02-05
- DOI:
- EISSN:
-
1550-2376
- ISSN:
-
1539-3755
- URN:
-
uuid:8d5927eb-73f9-42c3-be3b-2adf90f084cd
- Source identifiers:
-
354039
- Local pid:
- pubs:354039
- Language:
- English
- Keywords:
- Copyright date:
- 2012
Journal article
Size dependence of the propulsion velocity for catalytic Janus-sphere swimmers.
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