Experimental Study of the Second Phase of 3D Nanomanipulation Using Accurate Friction Models

Today, nanotechnology is used in various fields. One of the practical tools of this new technology is the Atomic Force Microscope (AFM). AFM is used in imaging, making microscale equipment, extracting the properties of biological tissues and manipulation. Manipulation of particles using AFM is considered in two phases. The first phase is before the movement of the target particle and the second phase is during the movement of the target particle. Determining the exact path of the particle in the second phase of nanomanipulation is of great importance. One of the important parameters in the simulation of the second phase is the friction model used. In this research, for the first time, three exact friction models of LuGrr, Leuvn and Greenwood-Williamson have been used to investigate the 3D second phase of nanomanipulation. The target particle under investigation is a gold nanoparticle, whose dimensions and geometry were obtained experimentally by imaging with an AFM. The obtained results have shown that the LuGre model predicts the lowest amount of displacement and the Greenwood-Williamson model predicts the highest amount of displacement.