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Fig. 1. Our experimental approach to study the mechanical properties of a biological material combines Atomic Force Microscopy (AFM) to exert point-like forces and optical tracking of microspheres to measure surface displacements.
![Experimental approach to study the mechanical properties of a biological material.](https://webarchive.library.unt.edu/eot2008/20090508154107im_/https://www.nidcd.nih.gov/staticresources/research/scientists/images/chadwick_lg1.jpg)