Diffusion trajectory of an asymmetric object: information overlooked by the mean square displacement

Diffusion of an asymmetric object is characterized by its translational and rotational diffusion coefficients. Until now, anisotropic diffusion studies have been based on ensemble averages. Here we present a theoretical basis for the analysis of the trajectories of a single particle with anisotropic...

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Bibliographic Details
Published in:Physical review. E, Statistical, nonlinear, and soft matter physics Statistical, nonlinear, and soft matter physics, 2007-02, Vol.75 (2 Pt 1), p.021112-021112, Article 021112
Main Authors: Ribrault, Claire, Triller, Antoine, Sekimoto, Ken
Format: Article
Language:English
Subjects:
Biomechanics
Mechanics
Physics
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Summary:Diffusion of an asymmetric object is characterized by its translational and rotational diffusion coefficients. Until now, anisotropic diffusion studies have been based on ensemble averages. Here we present a theoretical basis for the analysis of the trajectories of a single particle with anisotropic diffusion coefficients. We discuss the relevance of this method for motion of biomolecules in the membrane of living cells.
ISSN:1539-3755
1550-2376
DOI:10.1103/physreve.75.021112