Fluorescent spot densities of treated surfaces after exposure to labelled proteins.

<p><b>A)</b> Histogram showing average spot densities/µm² for each surface treatment, after incubation with fluorescently-labelled proteins for 1200 seconds. Each data point corresponds to mean ± SEM from 135 areas, data from all protein-fluorophore combinations being averaged for each treatment. B) Average spot densities/µm² for each fluorophore (each data point corresponds to mean ± SEM from 45 areas, 3 different proteins). c) Average spot densities/µm² for each protein, each data point corresponds to mean ± SEM from 45 areas, 3 different fluorophores).