Heterogeneous anomalous diffusion of virus in cytoplasm of a living cell

Details Heterogeneous anomalous diffusion of virus in cytoplasm of a living cell Heterogeneous anomalous diffusion of virus in cytoplasm of a living cell

2010-03-03

arxiv.org/abs/1003.0750v1

Physics

Biological Physics

12 pages, 1 figure

Scientific paper

The infection pathway of virus in cytoplasm of a living cell is studied from the viewpoint of diffusion theory. The cytoplasm plays a role of a medium for stochastic motion of the virus contained in the endosome as well as the free virus. It is experimentally known that the exponent of anomalous diffusion fluctuates in localized areas of the cytoplasm. Here, generalizing fractional kinetic theory, such fluctuations are described in terms of the exponent locally distributed over the cytoplasm, and a theoretical proposition is presented for its statistical form. The proposed fluctuations may be examined in an experiment of heterogeneous diffusion in the infection pathway.

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