Figure 3.

The concentration K_m at which half of the maximal saturation conductivity is reached plotted against the respective permeability values. K_m is extracted using Eq. 11 in IGOR Pro for seven organic anions (shaded circles) from own measurements that show saturating conductivity, and for four anions (open squares) from literature. K_m for cations (open triangles) were directly adopted from (45) (see Tables S3–S5). The linear regression was made with IGOR Pro based only on own measurements (n = 7; shaded circles). Literature data seem to follow the correlation independent of charge or used lipids.