Beilstein J. Nanotechnol.2017,8, 968–974, doi:10.3762/bjnano.8.98
. A closed-form analytical equation to estimate the tip–sample peak forces while imaging soft materials in liquid environment and within an elastic deformation regime has been deduced. We have combined a multivariateregression method with input from the virial–dissipation equations and Tatara’s
operating conditions to image soft matter with high spatial resolution in tapping-mode AFM.
Keywords: AFM in liquid; AFM theory; bidimensional elastic models; multivariateregression; neuronal networks; operational AFM parameters; parametrical equation; peak forces; soft matter; Introduction
Amplitude
[28][29].
Multivariateregression method to find a parametrical equation for the peak forces in tapping mode AFM on finite elastic soft matter systems
Asymptotic approximation methods have been used to deduce parametrical equations of physical quantities in dynamic systems. In amplitude-modulation AFM
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Figure 1:
(a) The dependence of the forces on the normalized time for two different Young moduli 30 MPa (ligh...