Schematic of the applied coating procedures for PC and αHisPC covalently attached to hematite via a chemical crosslinker, e.g. CDI. Differently from Bora
], as shown here for reference in a), the hematite surface is directly coated with agarose and melanin using the chemical crosslinker CDI. Distances are not in proportion. Additionally, a layer containing melanin and αHisPC (b, upper panel, PDB ID: 4F0T), PC (c upper panel), or PC plus melanin (d upper panel, PDB ID: 1HA7) was applied.