Analytical description of anomalous diffusion in living cells

Autor:	Bruno, L., Despósito, M. A.
Rok vydání:	2009
Předmět:	Physics - Biological Physics Quantitative Biology - Subcellular Processes
Druh dokumentu:	Working Paper
Popis:	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. Comment: 4 pages
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0904.2133 Zobrazit plný text záznamu View this record from Arxiv