Analytical description of anomalous diffusion in living cells

Details Analytical description of anomalous diffusion in living cells Analytical description of anomalous diffusion in living cells

2009-04-14

arxiv.org/abs/0904.2133v1

Physics

Biological Physics

4 pages

Scientific paper

We propose a stochastic model for intracellular transport processes associated with the activity of molecular motors. This out-of-equilibrium model, based on a generalized Langevin equation, considers a particle immersed in a viscoelastic environment and simultaneously driven by an external random force that models the motors activity. An analytical expression for the mean square displacement is derived, which exhibits a subdiffusive to superdiffusive transition. We show that the experimentally accessible statistical properties of the diffusive particle motion can be reproduced by this model.

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