Fig. 2: Adsorption layer height dependency.
A Numerical values of the adsorption layer height ΔH as a function of the wall adhesion strength \(\tilde{\epsilon }\) in the passive (brown stars) and active (orange dots) case, where in the latter case we assume that the adhesion strength increases linearly with activity as \(\tilde{\epsilon }=0.5{{{{{{{{\rm{Pe}}}}}}}}}_{{{{{{{{\rm{s}}}}}}}}}\). Straight lines are best power-law fits. A Adsorption layer height ΔH as a function of the activity Pes from experiment (purple dots) and from simulations, for, a neutral wall (blue square), a purely adhesive wall (orange circle) with \(\tilde{\epsilon }=0.5{{{{{{{{\rm{Pe}}}}}}}}}_{{{{{{{{\rm{s}}}}}}}}}\), a purely aligning wall (green diamond) with \(\tilde{\Gamma }=0.5{{{{{{{{\rm{Pe}}}}}}}}}_{{{{{{{{\rm{s}}}}}}}}}\) and a wall with both alignment and adhesion (red triangles) with \(\tilde{\epsilon }=0.25{{{{{{{{\rm{Pe}}}}}}}}}_{{{{{{{{\rm{s}}}}}}}}}\) and \(\tilde{\Gamma }=2{{{{{{{{\rm{Pe}}}}}}}}}_{{{{{{{{\rm{s}}}}}}}}}\). Straight lines are best power-law fits. B Detention time of colloids without a neighbour in the adsorption layer versus the activity Pes.
