Figure 7
From: Linking aggregation of Aspergillus niger spores to surface electrostatics: a theoretical approach
Impact of diminished ion solubilities on the electric potential distribution at low bulk pH. Profiles obtained for the cases where negative and positive mobile ions (-----) or negative mobile ions only (-----) possess lower solubilities in the coating are given in comparison with the respective solution for the case of uniform ion solubilities (___). Diminished solubilities were exemplarily considered by intrinsic partition coefficients that were 0.5 in region I and increased linearly from 0.5 to 1 across region II. Calculation conditions are as follows: σ=0.02 C m−2; δ=10 nm; 
mol L−1; 
mol L−1.