Figure 2.

Overall diffusion coefficients, D, as a function of the ratio of the particle radius over the fiber radius for the fiber structures employed in the study and for three fiber volume fractions 0.01, 0.03, and 0.05. The diffusion values of the fiber networks are the average of four realizations. Standard deviations were too small to be distinguished in the plot and were omitted. D₀ is the diffusion coefficient in solution.