scholarly journals Active colloidal particles at fluid-fluid interfaces

2017 ◽  
Vol 32 ◽  
pp. 57-68 ◽  
Author(s):  
Wenjie Fei ◽  
Yang Gu ◽  
Kyle J.M. Bishop
Keyword(s):  
Colloidal Particles ◽  
Fluid Interfaces

scholarly journals Anomalous Long-Range Attraction in Colloidal Binary Mixtures at Fluid–Fluid Interfaces

2020 ◽  
Vol 4 (3) ◽  
pp. 36
Author(s):  
Zonglin Yi ◽  
To Ngai
Keyword(s):  
Long Range ◽  
Colloidal Particles ◽  
Experimental Result ◽  
Colloidal System ◽  
Fluid Interfaces ◽  
Water Interface ◽  
Two Dimensional ◽  
Colloidal Systems ◽  
Oil Water ◽  
Theoretical Side

The properties of binary colloidal systems have gained the interest of researchers because they have much richer structures than their one-component counterpart. Continuing efforts are being made on the theoretical side on binary colloidal systems, while many issues remained unsolved for the lack of solid experimental supports, especially for study in the field of two-dimensional (2D) binary colloids system. Oil–water interfaces can serve as a good stringent 2D confinement for colloidal particles and can avoid anomalous problems caused by the quasi-two-dimensional environment in previous experimental reports. In this work, we conduct experimental research of binary colloids system in an oil–water interface to revisit theoretical predication. We measure an ultra-long-range attraction and discuss the possible mechanism of this attraction by comparing the experimental result with existing model and theory. This study could contribute more understanding of the binary colloidal system in both experimental aspects and theoretical aspects.

The interaction of colloidal particles collected at fluid interfaces

1981 ◽  
Vol 79 (2) ◽  
pp. 410-418 ◽  
Author(s):  
D.Y.C Chan ◽  
J.D Henry ◽  
L.R White
Keyword(s):  
Colloidal Particles ◽  
Fluid Interfaces

Interfacial viscoelasticity and jamming of colloidal particles at fluid–fluid interfaces: a review

2020 ◽  
Vol 83 (12) ◽  
pp. 126601
Author(s):  
Xiaoliang Ji ◽  
Xiaolu Wang ◽  
Yongjian Zhang ◽  
Duyang Zang
Keyword(s):  
Colloidal Particles ◽  
Fluid Interfaces

scholarly journals Curvature dynamics and long-range effects on fluid–fluid interfaces with colloids

Soft Matter ◽  
2019 ◽  
Vol 15 (13) ◽  
pp. 2848-2862 ◽  
Author(s):  
A. Tiribocchi ◽  
F. Bonaccorso ◽  
M. Lauricella ◽  
S. Melchionna ◽  
A. Montessori ◽  
...  
Keyword(s):  
Long Range ◽  
Colloidal Particles ◽  
Fluid Interfaces ◽  
Fluid Interface ◽  
Fluid Mixture ◽  
Binary Fluid ◽  
Interface Curvature

The fluid–fluid interface curvature can provide new insights into local inhomogeneities of a binary fluid mixture containing colloidal particles.

scholarly journals Janus Particles at Fluid Interfaces: Stability and Interfacial Rheology

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 374
Author(s):  
Elton L. Correia ◽  
Nick Brown ◽  
Sepideh Razavi
Keyword(s):  
Colloidal Particles ◽  
Janus Particles ◽  
Shear Stresses ◽  
Fluid Interfaces ◽  
Interfacial Rheology ◽  
Pickering Emulsions ◽  
Interfacial Mechanics ◽  
Anisotropic Surface ◽  
Particle Anisotropy

The use of the Janus motif in colloidal particles, i.e., anisotropic surface properties on opposite faces, has gained significant attention in the bottom-up assembly of novel functional structures, design of active nanomotors, biological sensing and imaging, and polymer blend compatibilization. This review is focused on the behavior of Janus particles in interfacial systems, such as particle-stabilized (i.e., Pickering) emulsions and foams, where stabilization is achieved through the binding of particles to fluid interfaces. In many such applications, the interface could be subjected to deformations, producing compression and shear stresses. Besides the physicochemical properties of the particle, their behavior under flow will also impact the performance of the resulting system. This review article provides a synopsis of interfacial stability and rheology in particle-laden interfaces to highlight the role of the Janus motif, and how particle anisotropy affects interfacial mechanics.

scholarly journals Self-assembly of cubic colloidal particles at fluid–fluid interfaces by hexapolar capillary interactions

Soft Matter ◽  
2018 ◽  
Vol 14 (1) ◽  
pp. 42-60 ◽  
Author(s):  
Giuseppe Soligno ◽  
Marjolein Dijkstra ◽  
René van Roij
Keyword(s):  
Self Assembly ◽  
Colloidal Particles ◽  
Fluid Interfaces ◽  
Ordered Structures ◽  
Capillary Interactions

Colloidal particles adsorbed at fluid–fluid interfaces can self-assemble, thanks to capillary interactions, into 2D ordered structures.

scholarly journals Ultrafast desorption of colloidal particles from fluid interfaces

2015 ◽  
Vol 112 (19) ◽  
pp. 5932-5937 ◽  
Author(s):  
Vincent Poulichet ◽  
Valeria Garbin
Keyword(s):  
Self Assembly ◽  
High Speed ◽  
Colloidal Particles ◽  
Complete Removal ◽  
Solid Particles ◽  
The Self ◽  
Fluid Interfaces ◽  
Particle Removal ◽  
Materials Synthesis ◽  
Ultrasound Waves

The self-assembly of solid particles at fluid–fluid interfaces is widely exploited to stabilize emulsions and foams, and in materials synthesis. The self-assembly mechanism is very robust owing to the large capillary energy associated with particle adsorption, of the order of millions of times the thermal energy for micrometer-sized colloids. The microstructure of the interfacial colloid monolayer can also favor stability, for instance in the case of particle-stabilized bubbles, which can be indefinitely stable against dissolution due to jamming of the colloid monolayer. As a result, significant challenges arise when destabilization and particle removal are a requirement. Here we demonstrate ultrafast desorption of colloid monolayers from the interface of particle-stabilized bubbles. We drive the bubbles into periodic compression–expansion using ultrasound waves, causing significant deformation and microstructural changes in the particle monolayer. Using high-speed microscopy we uncover different particle expulsion scenarios depending on the mode of bubble deformation, including highly directional patterns of particle release during shape oscillations. Complete removal of colloid monolayers from bubbles is achieved in under a millisecond. Our method should find a broad range of applications, from nanoparticle recycling in sustainable processes to programmable particle delivery in lab-on-a-chip applications.

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