Anomalous transport resolved in space and time by fluorescence correlation spectroscopy.

  title={Anomalous transport resolved in space and time by fluorescence correlation spectroscopy.},
  author={Felix Hofling and Karl-Ulrich Bamberg and Thomas Franosch},
  journal={Soft Matter},
A ubiquitous observation in crowded cell membranes is that molecular transport does not follow Fickian diffusion but exhibits subdiffusion. The microscopic origin of such a behaviour is not understood and highly debated. Here we discuss the spatio-temporal dynamics for two models of subdiffusion: fractional Brownian motion and hindered motion due to immobile obstacles. We show that the different microscopic mechanisms can be distinguished using fluorescence correlation spectroscopy (FCS) by… 

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