Active diffusion of motor particles

Details Active diffusion of motor particles Active diffusion of motor particles

2005-12-05

arxiv.org/abs/cond-mat/0512094v1

Phys. Rev. Lett. 95, 268102 (2005)

Physics

Condensed Matter

Statistical Mechanics

revtex, 4 pages, 4 figures, to appear in PRL

Scientific paper

10.1103/PhysRevLett.95.038102

The movement of motor particles consisting of one or several molecular motors bound to a cargo particle is studied theoretically. The particles move on patterns of immobilized filaments. Several patterns are described for which the motor particles undergo non-directed but enhanced diffusion. Depending on the walking distance of the particles and the mesh size of the patterns, the active diffusion coefficient exhibits three different regimes. For micrometer-sized motor particles in water, e.g., this diffusion coefficient can be enhanced by two orders of magnitude.

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