The description of Force-Distance Measurements

Force-Distance Measurements are performed to study attractive and repulsive forces on a tip as it approaches and retracts from the sample surface. Commonly applied to investigating fundamental force interactions, nano-scale adhesive and elastic response, binding forces, colloidal studies, and chemical sensing.

 

Examples (click to enlarge)


The surface of biological sample. Scan size 3x3um.

Phase imaging of the surface.

A set of force spectroscopy curves measured in spots shown on figure above. The curves was noc callibrated yet with factor correlating the voltage with force applied acting between the tip and sample.

A force spectroscopy curve which allows to determine the elasticity and viscous forces acting between sample and the surface.


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