Interfacial microrheology: Particle tracking and related techniques

Microrheology offers several advantages over traditional macroscopic rheology: the use of very small samples, the possibility of studying heterogeneous samples and the broad range of frequency that can be explored. In this paper the study of the microrheology of fluid interfaces is reviewed, with special emphasis on particle tracking techniques. We comment the main results and the assumptions of the different approaches for describing the hydrodynamics of a particle trapped at a surfactant or polymer monolayer.

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