Figure 6.

Diffusion coefficient of 5 nm gold nanoparticles in semidilute solutions of polystyrene in toluene. Solid circles are data from ref. 3 for M_w = 240 kDa polystyrene/toluene solutions above the overlap concentration. Lines are predictions of different models: solid line—our scaling model (eqs. 24 and 28 with α = 0.53), dashed line—hydrodynamic model (eq. 30 with k^hydro = 0.96), dash-dotted line—obstruction model (eq. 31 with k^obst = 0.43).