VZJ -- Or et al. 6 (2): 298 Figure IG4

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FIG. 4. (a) Relative diffusivity (D_e/D_aq) of solute in biofilm (hydrated extracellular polymeric substance) as a function of solute molecular weight (Stewart, 2003), and (b) relative solute diffusivity in gel (D_g/D_w) as a function of solute hydrodynamic radius R_A (Fatine-Rouge et al., 2004).