Interpretation of Figure - biofunctionalization

Question

In this paper on page 1985 they say:

Fluorescence analysis confirmed that enhanced protein binding at higher electron dose depends only to a small extent on the slight increase in the lateral dimensions of the nanodeposits but to a much larger degree on their height (Figure 4E)

The amount of adsorbed IgG-Cy3 is largely independent of the actual area of the nominal 100 nm islands but scales with the height of the nanodeposits.

I don't understand this yet: why do I see that the fluorescence is proportional to area in this figure?

Answer 1

The amount of adsorbed protein is proportional to the area of the 100 nm islands. Figure 4E proves it. The authors misinterpreted their own figure.