Microviscosity, fluidity, molecular mobility. Estimation by means of fluorescent probes

Microviscosity, fluidity, molecular mobility. Estimation by means of fluorescent probes 

Un fluide a de la viscosite lorsque les molecules ont de 1 adhesion entre elles. 

We should first emphasize that viscosity is a macroscopic parameter which loses its physical meaning on a molecular scale. Therefore, the term microviscosity should be used with caution, and the term fluidity can be alternatively used to characterize, in a very general way, the effects of viscous drag and cohesion of the probed microenvironment (polymers, micelles, gels, lipid bilayers of vesicles or biological membranes, etc.). 

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