Direct measurement of periodic electric forces in liquids

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Title: Direct measurement of periodic electric forces in liquids
Authors: Rodriguez, Brian J.
Jesse, S.
Seal, K.
et al.
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Date: 7-Jan-2008
Abstract: The electric forces acting on an atomic force microscope tip in solution have been measured using a microelectrochemical cell formed by two periodically biased electrodes. The forces were measured as a function of lift height and bias amplitude and frequency, providing insight into electrostatic interactions in liquids. Real-space mapping of the vertical and lateral components of electrostatic forces acting on the tip from the deflection and torsion of the cantilever is demonstrated. This method enables direct probing of electrostatic and convective forces involved in electrophoretic and dielectroforetic self-assembly and electrical tweezer operation in liquid environments.
Type of material: Journal Article
Publisher: American Institute of Physics
Copyright (published version): 2008, American Institute of Physics
Keywords: LiquidElectrostatic interactionPeriodically biased electrode
DOI: 10.1063/1.2817477
Language: en
Status of Item: Peer reviewed
Appears in Collections:Physics Research Collection

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