Fig. 2
Water self-diffusion coefficient for different systems. The self-diffusion coefficient of water is shown against the scaling parameter θ∗ for different systems. Data for proteins in silica nanopores have been obtained via molecular dynamics, while the rest of the data from the Supplementary information in [24]. In the legend, nanoparticles are abbreviated as NPs. The uncertainties on the value of D refer to the fitting of the mean square displacement (±1 s.d.); the uncertainties on the value of θ∗ to the estimate of the total volume accessible to water molecules (±1 s.d.). The solid and dashed lines report the model in Eq. (1) in case of DC=0 and DC=0.39×10−9m2/s, respectively