Foam stability: proteins and nanoparticles

Murray, Brent S.; Ettelaie, Rammile

doi:10.1016/j.cocis.2004.09.004

Cited by 326 publications

(209 citation statements)

References 42 publications

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“…[233][234][235][236][237][238][239] It is now wellknown that NPs partition to the dividing surface between immiscible liquids. It is thought that this phenomenon is inherently non-equilibrium in nature and that the NP structures that form are driven by factors such as the energy that is input into the system.…”

Section: B Nanoparticle Assemblies Driven By Solventsmentioning

confidence: 99%

Perspective: Outstanding theoretical questions in polymer-nanoparticle hybrids

Kumar

Ganesan

Riggleman

2017

The Journal of Chemical Physics

171

143

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This topical review discusses the theoretical progress made in the field of polymer nanocomposites, i.e., hybrid materials created by mixing (typically inorganic) nanoparticles (NPs) with organic polymers. It primarily focuses on the outstanding issues in this field and is structured around five separate topics: (i) the synthesis of functionalized nanoparticles; (ii) their phase behavior when mixed with a homopolymer matrix and their assembly into well-defined superstructures; (iii) the role of processing on the structures realized by these hybrid materials and the role of the mobilities of the different constituents; (iv) the role of external fields (electric, magnetic) in the active assembly of the NPs; and (v) the engineering properties that result and the factors that control them. While the most is known about topic (ii), we believe that significant progress needs to be made in the other four topics before the practical promise offered by these materials can be realized. This review delineates the most pressing issues on these topics and poses specific questions that we believe need to be addressed in the immediate future. Published by AIP Publishing. [http://dx

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Section: B Nanoparticle Assemblies Driven By Solventsmentioning

confidence: 99%

Perspective: Outstanding theoretical questions in polymer-nanoparticle hybrids

Kumar

Ganesan

Riggleman

2017

The Journal of Chemical Physics

171

143

View full text Add to dashboard Cite

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“…[1][2][3] In such cases the contact angle is no longer uniquely defined but instead can take on a range of values determined by the external conditions to which the liquid is subjected (e. g. external forces). The phenomenon of pinning has significant implications for the behaviour of small particles at fluid-fluid interfaces and therefore in such processes as stability of particle-laden fluid interfaces in Pickering emulsions and bubbles, 4,5 in degassing of liquids using particle anti-foaming agents 6 and in separation of mineral particles by froth flotation technique.…”

Section: Introductionmentioning

confidence: 99%

Detachment Force of Particles with Pinning of Contact Line from Fluid Bubbles/Droplets

Lishchuk

Ettelaie

2016

Langmuir

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“…"Pickering type bubbles". [13][14][15] These nanoparticles possess contact angles in a range of values that makes them preferentially reside at hydrophobic-hydrophilic interfaces. The adsorption energies associated with displacing the particles from the surface can easily be of the order of tens of thousands of k B T, even for relatively small particles with a size of a few tens of nanometer.…”

Section: Introductionmentioning

confidence: 99%

Effect of particle adsorption rates on the disproportionation process in pickering stabilised bubbles

Ettelaie

Murray

2014

The Journal of Chemical Physics

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The degree of shrinkage of particle stabilised bubbles of various sizes, in a polydisperse bubble dispersion, has been investigated in the light of the finite adsorption times for the particles and the disproportionation kinetics of the bubbles. For the case where the system contains an abundance of particles we find a threshold radius, above which bubbles are stabilised without any significant reduction in their size. Bubbles with an initial radius below this threshold on the other hand, undergo a large degree of shrinkage prior to stabilisation.As the ratio of the available particles to the bubbles is reduced, it is shown that the final bubble size, for the larger bubbles in the distribution, becomes increasingly governed by the number of particles, rather than their adsorption time per se. For systems with "adsorption controlled" shrinkage ratio, the final bubble distribution is found to be wider than the initial one, while for a "particle number controlled" case it is actually narrower. Starting from an unimodal bubble size distribution, we predict that at intermediate times, prior to the full stabilisation of all bubbles, the distribution breaks up into a bimodal one. However, the effect is transient and an unimodal final bubble size distribution is recovered once again, when all the bubbles are stabilised by the particles.-3-1

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Foam stability: proteins and nanoparticles

Cited by 326 publications

References 42 publications

Perspective: Outstanding theoretical questions in polymer-nanoparticle hybrids

Perspective: Outstanding theoretical questions in polymer-nanoparticle hybrids

Detachment Force of Particles with Pinning of Contact Line from Fluid Bubbles/Droplets

Effect of particle adsorption rates on the disproportionation process in pickering stabilised bubbles

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