Superdiffusion in a Model for Diffusion in a Molecularly Crowded Environment

Details Superdiffusion in a Model for Diffusion in a Molecularly Crowded Environment Superdiffusion in a Model for Diffusion in a Molecularly Crowded Environment

2007-06-05

arxiv.org/abs/0706.0643v1

Biology

Quantitative Biology

Subcellular Processes

8 pages including 4 figures

Scientific paper

We present a model for diffusion in a molecularly crowded environment. The model consists of random barriers in percolation network. Random walks in the presence of slowly moving barriers show normal diffusion for long times, but anomalous diffusion at intermediate times. The effective exponents for square distance versus time usually are below one at these intermediate times, but can be also larger than one for high barrier concentrations. Thus we observe sub- as well as super-diffusion in a crowded environment.

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