Hydrodynamic interactions enhance the performance of Brownian ratchets
نویسندگان
چکیده
منابع مشابه
Confined Brownian ratchets.
We analyze the dynamics of Brownian ratchets in a confined environment. The motion of the particles is described by a Fick-Jakobs kinetic equation in which the presence of boundaries is modeled by means of an entropic potential. The cases of a flashing ratchet, a two-state model, and a ratchet under the influence of a temperature gradient are analyzed in detail. We show the emergence of a stron...
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In Brownian ratchets the presence of random fluctuations (noise) can lead to directed diffusion in a periodic potential under nonequilibrium conditions, i.e. to a net unidirectional current. Such processes are thought to underlie macromolecular transport in biological cells and muscle contraction, and they provide a possible basis for nanoscale machinery. In flashing ratchets, where the periodi...
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ژورنال
عنوان ژورنال: Soft Matter
سال: 2011
ISSN: 1744-683X,1744-6848
DOI: 10.1039/c0sm01085e