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Diffusion enhancement in on/off ratchets
Eindhoven University of Technology, Netherlands.
Eindhoven University of Technology, Netherlands.
Eindhoven University of Technology, Netherlands.
Eindhoven University of Technology, Netherlands.
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2013 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 102, no 7, 073104Article in journal (Refereed) Published
Abstract [en]

We show a diffusion enhancement of suspended polystyrene particles in an electrical on/off ratchet. The enhancement can be described by a simple master equation model. Furthermore, we find that the diffusion enhancement can be described by a general curve whose shape is only determined by the asymmetry of the ratchet repeat unit. The scaling of this curve can be explained from an analytical expression valid for small off-times. Finally, we demonstrate how the master equation model can be used to find the driving parameters for optimal particle separation.

Place, publisher, year, edition, pages
American Institute of Physics (AIP) , 2013. Vol. 102, no 7, 073104
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:liu:diva-118134DOI: 10.1063/1.4793198ISI: 000315596700059OAI: oai:DiVA.org:liu-118134DiVA: diva2:813754
Note

Funding Agencies|Dutch Organization for Scientific Research NWO [VIDI7575]

Available from: 2015-05-25 Created: 2015-05-22 Last updated: 2015-06-04

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Kemerink, Martijn
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Chemical and Optical Sensor SystemsThe Institute of Technology
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