Abstract
The force-distance (F-D) curve in AFM analysis is a useful technique in the field of biophysics and surface science for measuring the physical/chemical properties of a substrate. Herein, the dependence of V z on the F-D curve has been described via a theoretical investigation confirmed with measured data. The results show the attractive force was gradually reduced above a V z of 5 µm/s by increasing the external repulsive force loaded onto the cantilever. To obtain a non-distorted F-D curve, one of two methods should be used: to analyze F-D curve under V z of 1 µm/s or use of a short/stiff cantilever.
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Kim, Y., Yang, Y.I., Choi, I. et al. Dependence of approaching velocity on the force-distance curve in AFM analysis. Korean J. Chem. Eng. 27, 324–327 (2010). https://doi.org/10.1007/s11814-009-0314-4
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DOI: https://doi.org/10.1007/s11814-009-0314-4