Fig. 5
From: Enhanced diffusion by binding to the crosslinks of a polymer gel
Enhanced diffusion in a reversible gel with moderate binding affinities. a A sketch of how a non-binding particle can diffuse when crosslinks are able to spontaneously break. b A sketch of a third pathway for diffusion that is only available to binding particles. c Mean squared displacement of a binding particle (blue) and a non-binding particle (red). At short time scales, the binding particle moves slower than the non-binding particle because it is bound. However, this binding helps break crosslinks on long-time scales and leads to a higher diffusion constant. See Supplementary Movie 3. d Dbinding/Dnon-binding for five slices of the five-dimensional parameter space. Each curve gives Dbinding/Dnon-binding while changing one or two of the energies while keeping all the others fixed. The symbols indicate the point on the curve corresponding to those initial energies. Data are averaged over 50 simulations in c and over 30 simulations for each point in d
