Figure 6
From: Ion-mediated interactions between like-charged polyelectrolytes with bending flexibility

(a, b) Effective separation D between the two PEs for two typical salt conditions: c3:3 = 0 (a) and c3:3 = 5 mM (b), in the absence of the cylinder confinement. Error bars represent the corresponding standard deviation ΔD. (c) Number Nb of the bridging ions for PEs with different persistence lengths P at c3:3 = 5 mM. Error bars represent corresponding standard deviation ΔNb. Please note that the systems were always in the presence of 20 mM 1:1 salt buffer. (d, e) Typical conformations of PEs with different persistence lengths P in the absence of cylindrical confinement. (d) c3:3 = 0, and white and yellow spheres represent monovalent cations and monovalent anions. (e) c3:3 = 5 mM, and the notation is the same as in Fig. 3. For P = 2 nm, the color of one PE is adjusted to pink to make it more distinguishable from the other.