Jump to main content
Jump to site search

Issue 17, 2014
Previous Article Next Article

Probing the type of anomalous diffusion with single-particle tracking

Author affiliations

Abstract

Many reactions in complex fluids, e.g. signaling cascades in the cytoplasm of living cells, are governed by a diffusion-driven encounter of reactants. Yet, diffusion in complex fluids often exhibits an anomalous characteristic (‘subdiffusion’). Since different types of subdiffusion have distinct effects on timing and equilibria of chemical reactions, a thorough determination of the reactants' type of random walk is key to a quantitative understanding of reactions in complex fluids. Here we introduce a straightforward and simple approach for determining the type of subdiffusion from single-particle tracking data. Unlike previous approaches, our method also is sensitive to transient subdiffusion phenomena, e.g. obstructed diffusion below the percolation threshold. We validate our strategy with data from experiment and simulation.

Graphical abstract: Probing the type of anomalous diffusion with single-particle tracking

Back to tab navigation

Publication details

The article was received on 20 Jan 2014, accepted on 05 Mar 2014 and first published on 05 Mar 2014


Article type: Communication
DOI: 10.1039/C4CP00292J
Author version
available:
Download author version (PDF)
Citation: Phys. Chem. Chem. Phys., 2014,16, 7686-7691
  • Open access: Creative Commons BY license
  •   Request permissions

    Probing the type of anomalous diffusion with single-particle tracking

    D. Ernst, J. Köhler and M. Weiss, Phys. Chem. Chem. Phys., 2014, 16, 7686
    DOI: 10.1039/C4CP00292J

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements