Capillary interactions between spherical Janus particles at liquid–fluid interfaces

Rezvantalab, Hossein; Shojaei-Zadeh, Shahab

doi:10.1039/c3sm27380f

Cited by 53 publications

(67 citation statements)

References 65 publications

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“…However, in most cases the hydrodynamic properties of the involved fluids are ignored in order to simplify the problem and to save computing time [71,73,[77][78][79][80][81][82]. While these works have provided a thorough insight of the general behavior of particles at interfaces, in order to understand dynamic wetting properties, they are only of limited applicability: to understand the fundamental origin of wetting a proper treatment of hydrodynamics and the dynamic movement of the contact line or deformability of the interface is required.…”

Section: Numerical Techniques To Simulate Particles In the Vicinity Omentioning

confidence: 98%

Dynamic wetting: status and prospective of single particle based experiments and simulations

et al. 2015

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Section: Numerical Techniques To Simulate Particles In the Vicinity Omentioning

confidence: 98%

Dynamic wetting: status and prospective of single particle based experiments and simulations

et al. 2015

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“…In this case non-equilibrium orientations could be favourable which could lead to attractive or repulsive capillary forces between particles at the interface based on their relative orientation. 82 In practice the formation of uniform Janus particles with a 50:50 mixture of the hydrophilic and hydrophobic components on the micro or nanoscale scale by chemical synthesis is difficult, although treatment of particles from either the aqueous or the organic side following assembly at the liquid/liquid interface is one way to develop these hydrophilic/hydrophobic structures. 83 Slight fluctuations in the position of the division between polar and apolar regions have been shown to increase capillary attractions between particles as the preferential wetting of the surface leads to greater distortions in the shape of the interface.…”

Section: Janus Particlesmentioning

confidence: 99%

Assembly of Nanoscale Objects at the Liquid/Liquid Interface

2015

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The liquid-liquid interface provides a molecularly sharp, defect free focal plane for the assembly of solid materials. In this article we discuss the various materials which have been successfully assembled at the liquid/liquid interface such as metallic nanoparticles, Janus particles and carbon nanomaterials. Strategies to induce particle assembly include manipulation of surface chemistry, surface charge and potential control. Liquid/liquid assembly can be exploited to synthesise materials in situ and template preformed structures. We go on to discuss the difficulties encountered when attempting to fully understand the structure of assemblies present at the liquid/liquid interface and the development of experimental techniques to elucidate information about the structure, stability, chemical composition, and reactivity of interfacial assemblies.

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“…A widely used approach to calculate a minimum energy surface is by means of the Surface Evolver program. 42 But several other approaches, both theoretical and numerical, have been used for studying the fluid-fluid interface shape in different physical problems, e.g., menisci shapes and capillary interactions, [43][44][45][46][47][48][49][50][51][52] droplet shapes, [53][54][55][56][57] diffuse interfaces, [58][59][60] or fluid-fluid interfaces in contact with deformable solids. [61][62][63] In this article, we introduce a new numerical method to obtain the minimum-energy shape of a fluid-fluid interface.…”

Section: Introductionmentioning

confidence: 99%

The equilibrium shape of fluid-fluid interfaces: Derivation and a new numerical method for Young’s and Young-Laplace equations

Soligno

Dijkstra

Roij

2014

The Journal of Chemical Physics

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Articles you may be interested inMany physical problems require explicit knowledge of the equilibrium shape of the interface between two fluid phases. Here, we present a new numerical method which is simply implementable and easily adaptable for a wide range of problems involving capillary deformations of fluid-fluid interfaces. We apply a simulated annealing algorithm to find the interface shape that minimizes the thermodynamic potential of the system. First, for completeness, we provide an analytical proof that minimizing this potential is equivalent to solving the Young-Laplace equation and the Young law. Then, we illustrate our numerical method showing two-dimensional results for fluid-fluid menisci between vertical or inclined walls and curved surfaces, capillary interactions between vertical walls, equilibrium shapes of sessile heavy droplets on a flat horizontal solid surface, and of droplets pending from flat or curved solid surfaces. Finally, we show illustrative three-dimensional results to point out the applicability of the method to micro-or nano-particles adsorbed at a fluid-fluid interface. C 2014 AIP Publishing LLC.[http://dx

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Capillary interactions between spherical Janus particles at liquid–fluid interfaces

Cited by 53 publications

References 65 publications

Dynamic wetting: status and prospective of single particle based experiments and simulations

Dynamic wetting: status and prospective of single particle based experiments and simulations

Assembly of Nanoscale Objects at the Liquid/Liquid Interface

The equilibrium shape of fluid-fluid interfaces: Derivation and a new numerical method for Young’s and Young-Laplace equations

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