Journal ArticleDOI
Particles as surfactants—similarities and differences
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In this paper, the authors compare the behavior observed in systems containing either particles or surfactant molecules in the areas of adsorption to interfaces, partitioning between phases and solid-stabilised emulsions and foams.Abstract:
Colloidal particles act in many ways like surfactant molecules, particularly if adsorbed to a fluid–fluid interface. Just as the water or oil-liking tendency of a surfactant is quantified in terms of the hydrophile–lipophile balance (HLB) number, so can that of a spherical particle be described in terms of its wettability via contact angle. Important differences exist, however, between the two types of surface-active material, due in part to the fact that particles are strongly held at interfaces. This review attempts to correlate the behaviour observed in systems containing either particles or surfactant molecules in the areas of adsorption to interfaces, partitioning between phases and solid-stabilised emulsions and foams.read more
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Emulsions stabilised solely by colloidal particles
TL;DR: In this paper, the free energy of formation of emulsion drops covered with close-packed monolayers of monodisperse spherical particles was investigated and the possibility of preparing novel solid materials by evaporating solid-stabilised emulsions is also proposed.
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Directed Self-Assembly of Nanoparticles
TL;DR: The present review critically investigates to what extent self-assembly can be directed, enhanced, or controlled by either changing the energy or entropy landscapes, using templates or applying external fields.
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Processing Routes to Macroporous Ceramics: A Review
TL;DR: In this paper, the main processing routes that can be used for the fabrication of macroporous ceramics with tailored microstructure and chemical composition are reviewed and compared in terms of microstructures and mechanical properties.
Journal ArticleDOI
Emulsions stabilized with solid nanoparticles: Pickering emulsions
TL;DR: In this article, the basic physical chemistry of pickering emulsions is explained and the ways to control the parameters of higher relevance with respect to development of applications are given, including the choice of the solid nanoparticles used as stabilizers and their surface properties, the control of emulsion type, droplet size, and rheology.
Journal ArticleDOI
Nature-inspired superwettability systems
TL;DR: In this paper, the historical development, new phenomena and emerging applications of superwettability systems are discussed and a review of the superwetability properties of interfacial materials is presented.
References
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Separation of solids in the surface-layers of solutions and ‘suspensions’ (observations on surface-membranes, bubbles, emulsions, and mechanical coagulation).—Preliminary account
TL;DR: In a paper published in Du Bois Reymond's ‘Archiv für Anat. und Physiologie’ in 1894, it was proved that mere agitation of various proteid solutions brought about a separation of some of their contained proteid in the form of fibrous or membrano-fibrous solids, and that it was possible in this way to coagulate and remove the whole of the proteid from solutions of egg-albumin this article.
Journal ArticleDOI
Two-Dimensional Interfacial Colloidal Crystals
TL;DR: In this paper, the dipole-dipolecular repulsive interactions organize polystyrene spheres into a two-dimensional triangular lattice and direct microscopic observations of such an interfacial colloidal crystal are reported for the first time.
Journal ArticleDOI
Influence of Particle Wettability on the Type and Stability of Surfactant-Free Emulsions†
B. P. Binks and,S. O. Lumsdon +1 more
TL;DR: In this article, the influence of the wettability of spherical, nanometer-sized silica particles on the type and stability of water−toluene emulsions is described.
Journal ArticleDOI
Pickering Emulsions Stabilized by Monodisperse Latex Particles: Effects of Particle Size
B. P. Binks and,S. O. Lumsdon +1 more
TL;DR: The preparation, type, and stability of emulsions of oil and water stabilized solely by spherical, monodisperse polystyrene latex particles of different sizes is described in this paper.
Journal ArticleDOI
Catastrophic Phase Inversion of Water-in-Oil Emulsions Stabilized by Hydrophobic Silica
B. P. Binks and,S. O. Lumsdon +1 more
TL;DR: A short review of the experimental findings concerning the stabilization of emulsions by solid particles is given in this article, where the authors describe the preparation and properties of water-in-oil (w/o)-emulsions stabilized by nanometer-sized hydrophobic silica particles alone.
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Influence of Particle Wettability on the Type and Stability of Surfactant-Free Emulsions†
B. P. Binks and,S. O. Lumsdon +1 more