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Images showing the results of LD simulations for both (a and b) −25 mV and (c and d) 25 mV ζ-potentials (left panel) and the electrostatic potential, ϕ, in the channel cross section (right panel). Various combinations of ζ and EOF cause specific deformation patterns in the polymer chain, including a pluglike EOF with λD = 0.3 nm (a and c) and a Poiseuille-like EOF with λD = 15 nm (b and d). To see this figure in color, go online.
