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Title: Particle laden fluid interfaces: Dynamics and interfacial rheology
Authors: Mendoza, Alma J.
Guzman, Eduardo
Martinez-Pedrero, Fernando
Ritacco, Hernan
Rubio, Ramon
Ortega, Francisco
Starov, Victor
Miller, Reinhard
Keywords: Particle laden interfaces
Diffusion coefficient of trapped particles
Interfacial dilational and shear rheology
Interfacial microrheology
Rheology of particle–surfactant monolayers
Issue Date: 2014
Publisher: © Elsevier
Citation: MENDOZA, E. ...et al., 2014. Particle laden fluid interfaces: Dynamics and interfacial rheology. Advances in Colloid and Interface Science, 206, pp. 303-319.
Abstract: Wereviewthe dynamics of particle laden interfaces, both particlemonolayers and particle+surfactantmonolayers. We also discuss the use of the Brownian motion of microparticles trapped at fluid interfaces for measuring the shear rheology of surfactant and polymer monolayers. We describe the basic concepts of interfacial rheology and the different experimental methods for measuring both dilational and shear surface complex moduli over a broad range of frequencies, with emphasis in the micro-rheology methods. In the case of particles trapped at interfaces the calculation of the diffusion coefficient from the Brownian trajectories of the particles is calculated as a function of particle surface concentration.We describe in detail the calculation in the case of subdiffusive particle dynamics. A comprehensive review of dilational and shear rheology of particle monolayers and particle+surfactant monolayers is presented. Finally the advantages and current open problems of the use of the Brownian motion ofmicroparticles for calculating the shear complex modulus of monolayers are described in detail.
Description: This paper is in closed access.
Sponsor: This work was supported in part by MINECO under grant FIS2012-28231-C02-01, by ESA under grants FASES and PASTA, and by COST Action CM1101. F.M-P.
Version: Published
DOI: 10.1016/j.cis.2013.10.010
URI: https://dspace.lboro.ac.uk/2134/25775
Publisher Link: http://dx.doi.org/10.1016/j.cis.2013.10.010
ISSN: 0001-8686
Appears in Collections:Closed Access (Chemical Engineering)

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