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Rupture-force probability distributions for peptide aptamer binding to a) glass, b) polystyrene and c) carbon nanotubes. Histograms are fit to the model of Evans-Ritchie21 (dotted line), Hummer-Szabo22 (gray) and Dudko et al.23 assuming a cusp shaped (ν=1/2, black solid line) or a linear-cubic (ν=2/3, black dashed line) energy barrier.
