Fluid viscosity determination by means of uncalibrated atomic force microscopy cantilevers

  title={Fluid viscosity determination by means of uncalibrated atomic force microscopy cantilevers},
  author={Massimiliano Papi and Giuseppe Arc{\`o}vito and Marco De Spirito and Massimo Vassalli and Bruno Tiribilli},
  journal={Applied Physics Letters},
In this letter it has been proved that the vibrating resonance frequency of an atomic force microscope cantilever is strictly characterized by its thickness (α), while its width/thickness ratio (β) appears to be a less sensitive parameter that can be approximated to a constant. We therefore propose a data analysis method that, by accounting for a constant β, allows for the determination of the value of α and consequently to calculate η. This method of monitoring viscosity has the advantage of… 

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