Original sentence: Another biophysical application of polymer force spectroscopy is on protein unfolding.In this case, generally the tip is functionalized with a ligand that binds to another molecule bound to the surface.Many proteins in the living cell must face mechanical stress.Much information about protein elasticity and protein unfolding can be obtained by this technique.The sequential unfolding of modules is observed as a very characteristic sawtooth pattern of the force vs elongation graph; every tooth corresponds to the unfolding of a single protein module (apart from the last that is generally the detachment of the protein molecule from the tip)
Edited sentence: Another exciting biophysical application of polymer force spectroscopy is on protein unfolding.In this case generally the tip is functionalized with a ligand that binds to another molecule bound to the surface.The sequential unfolding of modules is observed as a very characteristic sawtooth pattern of the force vs elongation graph; every tooth corresponds to the unfolding of a single protein module (apart from the last that is generally the detachment of the protein molecule from the tip) A lot of information about protein elasticity and protein unfolding can be obtained by this technique.This is even more interesting if we consider the fact that many proteins in the living cell must face mechanical stress