Calibration of colloid probe cantilevers using the dynamic viscous response of a confined liquid

Date

2003-09

Authors

Notley, Shannon
Biggs, Simon
Craig, Vincent S. J.

Journal Title

Journal ISSN

Volume Title

Publisher

American Institute of Physics

Abstract

A method is described to determine the spring constant of colloid probe cantilevers used in force measurements with the atomic force microscope. An oscillatory drive applied to the substrate is coupled by viscous interactions to the colloid probe. The dynamic response of the probe, which is unaffected by static interactions, is then used to determine the spring constant of the cantilever. Thus an accurate calibration of the spring constant may be performed simultaneously with a normal colloidal probe force measurementin situ.

Description

Keywords

Keywords: Atomic force microscopy; Drag; Dynamic response; Force measurement; Hydrodynamics; Probes; Viscosity; Colloid probe cantilevers; Colloids

Citation

Source

Review of Scientific Instruments

Type

Journal article

Book Title

Entity type

Access Statement

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