scholarly journals Assembling Ellipsoidal Particles at Fluid Interfaces Using Switchable Dipolar Capillary Interactions

2014 ◽  
Vol 26 (39) ◽  
pp. 6715-6719 ◽  
Author(s):  
Gary B. Davies ◽  
Timm Krüger ◽  
Peter V. Coveney ◽  
Jens Harting ◽  
Fernando Bresme
Keyword(s):  
Fluid Interfaces ◽  
Ellipsoidal Particles ◽  
Capillary Interactions

scholarly journals Capillary Interactions: Assembling Ellipsoidal Particles at Fluid Interfaces Using Switchable Dipolar Capillary Interactions (Adv. Mater. 39/2014)

2014 ◽  
Vol 26 (39) ◽  
pp. 6800-6800
Author(s):  
Gary B. Davies ◽  
Timm Krüger ◽  
Peter V. Coveney ◽  
Jens Harting ◽  
Fernando Bresme
Keyword(s):  
Fluid Interfaces ◽  
Ellipsoidal Particles ◽  
Capillary Interactions

scholarly journals Dipolar capillary interactions between tilted ellipsoidal particles adsorbed at fluid–fluid interfaces

Soft Matter ◽  
2015 ◽  
Vol 11 (40) ◽  
pp. 7969-7976 ◽  
Author(s):  
Gary B. Davies ◽  
Lorenzo Botto
Keyword(s):  
Self Assembly ◽  
Fluid Interfaces ◽  
Anisotropic Particle ◽  
Ellipsoidal Particles ◽  
Capillary Interactions

Capillary interactions have emerged as a tool for the directed self-assembly of particles adsorbed at fluid interfaces. Recent observations of anisotropic particle monolayers interacting via induced dipolar capillary interactions showed very interesting phenomenology. Our investigations explain many of the observed monolayer properties.

Capillary interactions between spherical Janus particles at liquid–fluid interfaces

Soft Matter ◽  
2013 ◽  
Vol 9 (13) ◽  
pp. 3640 ◽  
Author(s):  
Hossein Rezvantalab ◽  
Shahab Shojaei-Zadeh
Keyword(s):  
Janus Particles ◽  
Fluid Interfaces ◽  
Capillary Interactions

scholarly journals Capillary-driven binding of thin triangular prisms at fluid interfaces

Soft Matter ◽  
2018 ◽  
Vol 14 (19) ◽  
pp. 3902-3918 ◽  
Author(s):  
Joseph A. Ferrar ◽  
Deshpreet Singh Bedi ◽  
Shangnan Zhou ◽  
Peijun Zhu ◽  
Xiaoming Mao ◽  
...  
Keyword(s):  
Fluid Interfaces ◽  
Open Networks ◽  
Capillary Interactions

Thin, triangular prisms self-assemble into open networks via capillary interactions at flat air–water interfaces.

scholarly journals Interface deformations affect the orientation transition of magnetic ellipsoidal particles adsorbed at fluid–fluid interfaces

Soft Matter ◽  
2014 ◽  
Vol 10 (35) ◽  
pp. 6742-6748 ◽  
Author(s):  
Gary B. Davies ◽  
Timm Krüger ◽  
Peter V. Coveney ◽  
Jens Harting ◽  
Fernando Bresme
Keyword(s):  
Magnetic Field ◽  
Fluid Interfaces ◽  
Fluid Interface ◽  
Ellipsoidal Particles ◽  
Particle Monolayer

Magnetic ellipsoidal particles adsorbed at a fluid–fluid interface create dipolar interface deformations in response to a magnetic field, which affects their orientation and may lead to novel particle monolayer structures.

Behavior of Janus Particles at Liquid Interfaces

2014 ◽  
Author(s):  
Hossein Rezvantalab ◽  
Shahab Shojaei-Zadeh
Keyword(s):  
Small Difference ◽  
Separation Distance ◽  
Janus Particles ◽  
Interface Plane ◽  
Fluid Interfaces ◽  
Liquid Interfaces ◽  
Ellipsoidal Particles ◽  
Particle Force ◽  
Energetic Interactions

We study the capillary-induced interactions and configuration of spherical and non-spherical Janus particles adsorbed at flat liquid-fluid interfaces. For Janus spheres, the equilibrium orientation results in each hemisphere being exposed to its more favored fluid. However, experimental observations suggest that some of these particles may take a tilted orientation at the interface, giving rise to a deformed interface. On the other hand, Janus ellipsoids with a large aspect ratio or a small difference in the wettability of the two regions tend to tilt even at equilibrium. The overlap of deformed menisci results in energetic interactions between neighboring particles. We numerically calculate the interface shape around the particles by minimizing the total surface energy of the system comprising of the interface and particle-fluid regions. We quantify these interactions through evaluation of capillary energy variation as a function of the orientation and separation distance between the particles. We find that Janus spheres with similar orientations undergo a relative realignment in the interface plane in order to minimize the capillary energy. In case of ellipsoidal particles, the particles assemble in a preferred side-by-side configuration. We evaluate the role of anisotropy and degree of amphiphilicity on the inter-particle force and the capillary torque. The results can be used to predict the migration and oriented assembly of Janus particles with various geometrical and surface properties at liquid-fluid interfaces.

scholarly journals Chains of cubic colloids at fluid–fluid interfaces

Soft Matter ◽  
2021 ◽  
Author(s):  
Carmine Anzivino ◽  
Giuseppe Soligno ◽  
René van Roij ◽  
Marjolein Dijkstra
Keyword(s):  
Self Assembly ◽  
Fluid Interfaces ◽  
Assembly Process ◽  
Fluid Interface ◽  
Chain Formation ◽  
Capillary Interactions

Inspired by recent experimental observations of spontaneous chain formation of cubic particles adsorbed at a fluid–fluid interface, we theoretically investigate whether capillary interactions can be responsible for this self-assembly process.

scholarly journals Near-zero surface pressure assembly of rectangular lattices of microgels at fluid interfaces for colloidal lithography

Soft Matter ◽  
2021 ◽  
Author(s):  
Miguel Angel Fernandez-Rodriguez ◽  
Maria-Nefeli Antonopoulou ◽  
Lucio Isa
Keyword(s):  
Surface Pressure ◽  
Fluid Interfaces ◽  
Steric Repulsion ◽  
Colloidal Lithography ◽  
Capillary Interactions ◽  
Rectangular Lattices

Rectangular lattices of microgels at interfaces self-assemble at near zero surface pressure due to attractive quadrupolar capillary interactions and steric repulsion. They can be used for soft colloidal lithography.

Equilibrium configurations and capillary interactions of Janus dumbbells and spherocylinders at fluid–fluid interfaces

Soft Matter ◽  
2019 ◽  
Vol 15 (12) ◽  
pp. 2638-2647 ◽  
Author(s):  
Carmine Anzivino ◽  
Fuqiang Chang ◽  
Giuseppe Soligno ◽  
René van Roij ◽  
Willem K. Kegel ◽  
...  
Keyword(s):  
Numerical Method ◽  
Experimental Results ◽  
Janus Particles ◽  
Fluid Interfaces ◽  
Fluid Interface ◽  
Equilibrium Configurations ◽  
Capillary Interactions ◽  
Good Agreement

We numerically investigate the adsorption of a variety of Janus particles (dumbbells, elongated dumbbells and spherocylinders) at a fluid–fluid interface by using a numerical method that takes into account the interfacial deformations. We also experimentally synthesize micrometer–sized charged Janus dumbbells and let them adsorb at a water–decane interface. We find a good agreement between numerical and experimental results.

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.

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