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Micro-rheology near fluid interfaces

Wang, Genmiao; Prabhakar, R; Gao, Yongxiang; Sevick, Edith M

Description

Using optical trapping, we have measured anisotropic and distance-dependent mobility of a colloidal particle near high surface tension fluid-fluid interfaces. These experimental results show that the parallel mobility is enhanced near a high surface tension liquid-gas surface, which is consistent with hydrodynamic predictions for a surface that does not support a stress, and that the parallel mobility is suppressed near a high surface tension liquid-liquid surface, consistent with a no-slip...[Show more]

dc.contributor.authorWang, Genmiao
dc.contributor.authorPrabhakar, R
dc.contributor.authorGao, Yongxiang
dc.contributor.authorSevick, Edith M
dc.date.accessioned2015-12-10T23:31:05Z
dc.identifier.issn2040-8978
dc.identifier.urihttp://hdl.handle.net/1885/68459
dc.description.abstractUsing optical trapping, we have measured anisotropic and distance-dependent mobility of a colloidal particle near high surface tension fluid-fluid interfaces. These experimental results show that the parallel mobility is enhanced near a high surface tension liquid-gas surface, which is consistent with hydrodynamic predictions for a surface that does not support a stress, and that the parallel mobility is suppressed near a high surface tension liquid-liquid surface, consistent with a no-slip solid boundary. We demonstrate the potential for this optical technique to be applied to soft interfaces by predicting the normalized PSD using recent hydrodynamic predictions on particle mobility near soft surfaces.
dc.publisherInstitute of Physics Publishing
dc.sourceJournal of Optics
dc.subjectKeywords: Colloidal particle; Fluid fluid interfaces; Fluid interface; Liquid-liquids; Optical technique; optical trapping; Particle mobility; Soft surface; soft surfaces; Solid boundaries; Colloid chemistry; Colloids; Fluid dynamics; Fluidity; Forecasting; Frictio colloid mobility; friction; optical trapping; soft surfaces
dc.titleMicro-rheology near fluid interfaces
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume13
dc.date.issued2011
local.identifier.absfor030704 - Statistical Mechanics in Chemistry
local.identifier.ariespublicationf2965xPUB1719
local.type.statusPublished Version
local.contributor.affiliationWang, Genmiao, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationPrabhakar, R, Monash University
local.contributor.affiliationGao, Yongxiang, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationSevick, Edith M, College of Physical and Mathematical Sciences, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.issue4
local.bibliographicCitation.startpage044009/1
local.bibliographicCitation.lastpage7
local.identifier.doi10.1088/2040-8978/13/4/044009
local.identifier.absseo970103 - Expanding Knowledge in the Chemical Sciences
dc.date.updated2016-02-24T08:16:29Z
local.identifier.scopusID2-s2.0-79954499548
local.identifier.thomsonID000291926500010
CollectionsANU Research Publications

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