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Nature Chemistry (16 May 2008) | doi:10.1038/nchem.10

Microscale viscosity: Mobility mapped

Stephen Davey

The rate of diffusion of a species in solution is affected by the viscosity of the medium. A number of important biological processes depend on this rate: for example, the speed at which chemical signals are passed on, or the efficiency of a biomolecular conversion in which a short-lived intermediate is involved.