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Application of a Dynamic Atomic Force Microscope for the Measurement of Lubrication Forces and Hydrodynamic Thickness between Surfaces Bearing Absorbed Polyelectrolyte Layers

Notley, Shannon; Biggs, Simon; Craig, Vincent


An atomic force microscope, modified to perform dynamic measurements, has been used to measure the lubrication forces between a colloid probe and flat substrate in the normal direction. The hydrodynamic interactions were measured for bare surfaces and for surfaces with an adsorbed layer of the weak polyelectrolyte, poly(2-vinylpyridine) in aqueous solution. The flow of liquid between the surfaces is described in terms of the effective mobility, G. At surface separations far exceeding twice the...[Show more]

CollectionsANU Research Publications
Date published: 2003
Type: Journal article
Source: Macromolecules
DOI: 10.1021/ma025761w


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