Spherical Brownian diffusion of particles on liquid-liquid interfaces of Pickering emulsions

El-Moudny, S.; Badia, M.; Benhamou, M.

doi:10.1088/1757-899x/186/1/012020

Cited by 1 publication

(2 citation statements)

References 8 publications

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“…The last discussed point is an exact study of the spherical diffusion of the confi ned nanoparticles on the spherical surface of droplets. In particular, it was found [55] that, for shorttimes, the diffusion of a given nanoparticle (tracer) does not feel the infl uence of the droplet-shape, and this diffusion remain normal.…”

Section: Resultsmentioning

confidence: 99%

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Review on Pickering emulsions stabilized by adsorbed nanoparticles: Structure, Thermodynamics, Cage Effect and Subdiffusion

El-Moudny¹

2017

Int J Nanomater Nanotechnol Nanomed

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In this review paper, we report on some very recent fi ndings dealt with the oil-in-water Pickering emulsions, stabilized by a strong adsorption of charged solid nanoparticles on the surface of the oildroplets. Here, we are concerned with three important questions: (1) Structure and thermodynamics of these emulsions, (2) cage effect and subdiffusion phenomenon within them, and (3) spherical diffusion of anchored nanoparticles on the curved oil/water interface. For the study, the emulsions are regarded as colloidal solutions, where the clothed oil-droplets play the role of charged soft-colloids, and in addition, the adsorbed nanoparticles are assumed to be point-like. For question (1), we recall the essential steps allowing the determination of the structure-factor and the spatial-correlation function, and the thermodynamic properties, as pressure, internal energy, and thermal compressibility of these emulsions. To this end, the adopted pair-potential is that of Sogami-Ise combining repulsive and attractive forces, and use is made of the so-called Integral Equation Method. The question (2) deals with a quantitative investigation of the clothed oil-droplets dynamics (cage effect and subdiffusion), using a Generalized Langevin Equation, which is successfully tested by Molecular Dynamic Simulations. The question (3) is concerned with an exact study of the spherical diffusion of anchored nanoparticles on the surface of the dispersed oil-droplets. Finally, we precise the major role played by grafted polymers onto the spherical oil/water interface.

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Section: Resultsmentioning

confidence: 99%

“…This computational method was introduced by Alder and Wainwright [54], in order to study the structure and dynamics of liquids. Also, an exact study of the spherical diffusion laws of anchored nanoparticles on the surface of the droplets of PEs has been recently achieved [55].…”

Section: Introductionmentioning

confidence: 99%

Review on Pickering emulsions stabilized by adsorbed nanoparticles: Structure, Thermodynamics, Cage Effect and Subdiffusion

El-Moudny¹

2017

Int J Nanomater Nanotechnol Nanomed

View full text Add to dashboard Cite

show abstract

Spherical Brownian diffusion of particles on liquid-liquid interfaces of Pickering emulsions

Cited by 1 publication

References 8 publications

Review on Pickering emulsions stabilized by adsorbed nanoparticles: Structure, Thermodynamics, Cage Effect and Subdiffusion

Review on Pickering emulsions stabilized by adsorbed nanoparticles: Structure, Thermodynamics, Cage Effect and Subdiffusion

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