Authors
Vincent Tejedor, Olivier Bénichou, Raphael Voituriez, Ralf Jungmann, Friedrich Simmel, Christine Selhuber-Unkel, Lene B Oddershede, Ralf Metzler
Publication date
2010/4/7
Journal
Biophysical journal
Volume
98
Issue
7
Pages
1364-1372
Publisher
Elsevier
Description
An increasing number of experimental studies employ single particle tracking to probe the physical environment in complex systems. We here propose and discuss what we believe are new methods to analyze the time series of the particle traces, in particular, for subdiffusion phenomena. We discuss the statistical properties of mean maximal excursions (MMEs), i.e., the maximal distance covered by a test particle up to time t. Compared to traditional methods focusing on the mean-squared displacement we show that the MME analysis performs better in the determination of the anomalous diffusion exponent. We also demonstrate that combination of regular moments with moments of the MME method provides additional criteria to determine the exact physical nature of the underlying stochastic subdiffusion processes. We put the methods to test using experimental data as well as simulated time series from different …
Total citations
20102011201220132014201520162017201820192020202120222023202411152623172611232216101410112
Scholar articles