Fig. 3
From: Atomic-resolution three-dimensional hydration structures on a heterogeneously charged surface

Comparison of force curves and density profiles. a, b Average force profiles on the T (a) and BI (b) regions extracted from 3D force map (red curves). The broken green and solid light-blue curves are the fitted background force and subtracted force curves, respectively. The vertical blue broken lines represent the force maxima in the subtracted curves. c, d Normalised water (oxygen) and ion density profiles calculated by MD simulation on the T (c) and B (d) regions