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Open Access Highly Accessed Research article

Membrane microdomains emergence through non-homogeneous diffusion

Hédi A Soula13*, Antoine Coulon4 and Guillaume Beslon23

Author Affiliations

1 Université de Lyon Inserm UMR1060, F-69621, Villeurbanne Cédex, France

2 Université de Lyon, CNRS INSA-Lyon, LIRIS, UMR5205, F-69621, France

3 EPI BEAGLE, INRIA, F-69603, France

4 Laboratory of Biological Modeling, NIDDK, NIH, Bethesda, MD, 20892, USA

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BMC Biophysics 2012, 5:6  doi:10.1186/2046-1682-5-6

Published: 30 April 2012

Additional files

Additional file 1:

Particle evolution for r = 2 and no interactions (Є = 0).Evolution under non-homogeneous diffusion of 1,000 particles (depicted in green) for 1000 time step. A square slow patch on the upper left corner has a diffusion ratio of 2 and particles interaction is limited to collision. This is the typical NHD simulations when, at equilibrium, there will be twice more particles in the slow patch.

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Additional file 2:

Particle evolution for r = 2 and no interactions (Є = 10000).Evolution under non-homogeneous diffusion of 1,000 particles (depicted in green) for 1000 time step. A square slow patch on the upper left corner has a diffusion ratio of 2 and particles interaction is set to an intermediate level Є = 10000. For this important level of interactions, clusters appear everywhere but they are always more pronounced in the slow patch.

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Additional file 3:

Particle evolution for r = 10 and no interactions (Є = 0).Evolution under non-homogeneous diffusion of 1,000 particles (depicted in green) for 500 time step. A square slow patch on the upper left corner has a diffusion ratio of 10 and particles interaction is limited to collision. The important amount of slowing allows for an important overconcentration (that will ultimately be 10 fold).

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Additional file 4:

Particle evolution for r = 10 and no interactions (Є = 10000).Evolution under non-homogeneous diffusion of 1,000 particles (depicted in green) for 500 time step. A square slow patch on the upper left corner has a diffusion ratio of 10 and particles interaction strength is set to 10000. In this last experiment,the over-concentration appears first on the border of the patch. The difference in the phase transition is extremely more pronounced in the slow patch.

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Open Data