Figure 3
From: 'Single molecule': theory and experiments, an introduction
Force spectroscopy of a single polymer by Atomic Force Microscopy. (A) The polymer ends are grafted to a surface and to the cantilever; (B) the surface is lowered thereby causing the bending of the cantilever; (C) A domain (shown by the arrow) is opening and the cantilever returns to its original position; (D) The corresponding force-extension curve is shown.