FIGURE 2.

Schematic representation of the cantilever movement over a single collagen type I fibril during the scanning-mode bending experiments. Each cycle (approach and retraction) of the cantilever movement in the z-direction gives a piezo movement-deflection curve. After each cycle, the cantilever moves one step further along the fibril. In total, 256 steps along the fibril gave 256 piezo movement-deflection curves.