Aggregation on a membrane of particles undergoing active exchange with a reservoir

We investigate the dynamics of clusters made of aggregating particles on a membrane which exchanges particles with a reservoir. Exchanges are driven by chemical reactions which supply energy to the system, leading to the establishment of a non-equilibrium steady state. We predict the distribution of...

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Bibliographic Details
Published in:The European physical journal. E, Soft matter and biological physics Soft matter and biological physics, 2012-02, Vol.35 (2), p.12-12, Article 12
Main Author: Foret, L.
Format: Article
Language:English
Subjects:
Adenosine Triphosphate - chemistry
Adsorption
Animals
Biological and Medical Physics
Biophysics
Biophysics - methods
Cell Membrane - metabolism
Chemistry
Cluster Analysis
Colloidal state and disperse state
Complex Fluids and Microfluidics
Complex Systems
Cytosol - metabolism
Exact sciences and technology
General and physical chemistry
GTP Phosphohydrolases - chemistry
Guanosine Diphosphate - chemistry
Kinetics
Membrane Microdomains - chemistry
Membranes
Models, Statistical
Nanotechnology
Physics
Physics and Astronomy
Polymer Sciences
Protein Binding
Protein Conformation
Proteins - chemistry
Regular Article
Soft and Granular Matter
Surfaces and Interfaces
Temperature
Thermodynamics
Thin Films
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Summary:We investigate the dynamics of clusters made of aggregating particles on a membrane which exchanges particles with a reservoir. Exchanges are driven by chemical reactions which supply energy to the system, leading to the establishment of a non-equilibrium steady state. We predict the distribution of cluster size at steady state. We show in particular that in a regime, that cannot exist at equilibrium, the distribution is bimodal: the membrane is mainly populated of single particles and finite-size clusters. This work is motivated by the observations that have revealed the existence of submicrometric clusters of proteins in biological membranes.
ISSN:1292-8941
1292-895X
DOI:10.1140/epje/i2012-12012-3