Table 2.

Salt ion number of the explicit ion MD simulations and corresponding screening parameters used for the NPB calculations

$n_s$	$\kappa$	$\kappa$ (NPB)	$\kappa$ (MD)	$Z_{\text{eff}}^{\star }$	$Z_{\text{eff}}$ (NPB)	$Z_{\text{eff}}$ (MD)
0	0.0333	0.011	0.010	88.3	79.8	110.0
160	0.0425	0.038	0.042	91.7	94.5	131.7
320	0.05	0.046	0.049	94.4	96.3	138.3
640	0.062	0.058	0.051	98.7	97.7	133.1
1280	0.082	0.082	0.060	105.5	105.5	126.1

Also listed are the fit parameters for the screening parameter and the effective charge after fitting a DLVO force to the results of both approaches. $Z_{\text{eff}}^{\star }$ denotes the predicted effective charge according to the analytical estimate. $Z_{\text{eff}}$ (MD) denotes the result from the fit to Eq. (8) reported in Fig. 9