Structure and thermodynamics of Pickering emulsions stabilized by adsorbed charged particles

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

doi:10.1016/j.molliq.2016.11.044

Cited by 12 publications

(9 citation statements)

References 76 publications

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“…From a mesoscopic point of view, much effort has been dedicated to the development and parameterization of effective interaction potentials to study the structure and dynamics of colloidal systems. [11][12][13] This is supposed to save extensive details and yield valuable information. Thus, the physical properties, in terms of the micro arrangements and collective dynamics of colloidal systems, are determined by considering the colloids as dispersed particles interacting via an effective interaction.…”

Section: Introductionmentioning

confidence: 99%

Static and dynamic properties of decane/water microemulsions stabilized by cetylpyridinium chloride cationic surfactant and octanol cosurfactant

et al. 2020

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Section: Introductionmentioning

confidence: 99%

Static and dynamic properties of decane/water microemulsions stabilized by cetylpyridinium chloride cationic surfactant and octanol cosurfactant

et al. 2020

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“…Discussion was done, in terms of the essential factors governing physics, as the density of the oil-droplets, their size and surface charge, and the saltconcentration. In the same context, a successful comparison [48] between results from integral equation method and MD simulations has shown their good agreement.…”

Section: Resultsmentioning

confidence: 74%

“…Figure 7c shows this variation indicating that the thermal compressibility passes by a maximum, which is strongly sensitive to the variation of the droplet-size, from 0,0005 0,0010 0,0015 0,0020 0,0025 0,0030 0 Typical magnitudes of pressure, internal energy and thermal compressibility are given in Ref. [48], choosing some values of the droplet-size.…”

Section: B Size Effectsmentioning

confidence: 98%

“…Typical magnitudes of pressure, internal energy and thermal compressibility are given in Ref. [48], versus some values of the surface charge.…”

Section: A Charge Effectsmentioning

confidence: 99%

“…But the resulting Coulomb force between the (oil) hairy-droplets are screened out by the presence of mobile small charges that are counterions and coions (coming from a dissociation of an electrolyte). In a very recent publication [48], the authors were interested in the determination of the structure and thermodynamics of PEs, using the so-called Integral Equation Method [49], which is based on the Statistical Mechanics principles. Such a method allowed the extraction of the spatial-correlation-function and the structure-factor and thermodynamic properties, as pressure, internal energy and thermal compressibility.…”

Section: Introductionmentioning

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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A pH-responsive emulsion stabilized by alginate-grafted anisotropic silica and its application in the controlled release of λ-cyhalothrin

Chen

et al. 2017

Carbohydrate Polymers

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Structure and thermodynamics of Pickering emulsions stabilized by adsorbed charged particles

Cited by 12 publications

References 76 publications

Static and dynamic properties of decane/water microemulsions stabilized by cetylpyridinium chloride cationic surfactant and octanol cosurfactant

Static and dynamic properties of decane/water microemulsions stabilized by cetylpyridinium chloride cationic surfactant and octanol cosurfactant

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

A pH-responsive emulsion stabilized by alginate-grafted anisotropic silica and its application in the controlled release of λ-cyhalothrin

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