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Active systems comprising micron-sized self-propelling units, also termed microswimmers, are promising candidates for the bottom-up assembly of small structures and reconfigurable materials. Here we leverage field-driven colloidal assembly…

Soft Condensed Matter · Physics 2024-12-24 Carolina van Baalen , Laura Alvarez , Robert Style , Lucio Isa

Self-organisation is driven by the interactions between the individual components of a system mediated by the environment, and is one of the most important strategies used by many biological systems to develop complex and functional…

Soft Condensed Matter · Physics 2018-11-07 S. Masoumeh Mousavi , Sabareesh K. P. Velu , Agnese Callegari , Luca Biancofiore , Giovanni Volpe

We study the effects of heterogeneity on interfacial pinning and hydrodynamic drag using molecular dynamics (MD) simulations of Janus nanospheres at a liquid/vapor interface. We construct the free energy landscape for this system, both in…

Soft Condensed Matter · Physics 2019-04-17 Joel Koplik , Charles Maldarelli

Due to the combined effect of anisotropic interactions and activity, Janus swimmers are capable to self-assemble in a wide variety of structures, many more than their equilibrium counterpart. This might lead to the development of novel…

Soft Condensed Matter · Physics 2019-06-26 Francisco Alarcon , Eloy Navarro-Argemí , Chantal Valeriani , Ignacio Pagonabarraga

We study the active dynamics of self-propelled asymmetrical colloidal particles (Janus particles) fueled by an AC electric field. Both the speed and the direction of the self-propulsion and the strength of attractive interaction between the…

Soft Condensed Matter · Physics 2018-02-14 Daiki Nishiguchi , Junichiro Iwasawa , Hong-Ren Jiang , Masaki Sano

Phase separation in binary mixtures in the presence of Janus particles has been studied in terms of a Cahn-Hilliard model coupled to the Langevin equations describing the particle dynamics. We demonstrate that the phase separation process…

Soft Condensed Matter · Physics 2015-06-17 Alexei Krekhov , Vanessa Weith , Walter Zimmermann

The Janus structure, by combining properties of different transition metal dichalcogenide (TMD) monolayers in a single polar material, has attracted increasing research interest because of their particular structure and potential…

Materials Science · Physics 2020-01-08 San-Dong Guo , Xiao-Shu Guo

While active systems possess notable potential to form the foundation of new classes of autonomous materials, designing systems that can extract functional work from active surroundings has proven challenging. In this work, we extend these…

Soft Condensed Matter · Physics 2024-04-12 Benjamin Loewe , Tyler N. Shendruk

Two-dimensional materials with Janus structure host novel physical properties due to their inversional symmetry breaking. However, it remains elusive to synthesize Janus monolayer crystals with tailored long-range magnetic orders. Here, we…

Catalytically active Janus particles suspended in solution create gradients in the chemical composition of the solution along their surfaces, as well as along any nearby container walls. The former leads to self-phoresis, while the latter…

Soft Condensed Matter · Physics 2016-09-22 W. E. Uspal , M. N. Popescu , S. Dietrich , M. Tasinkevych

We analyze the various morphing structures obtained by actuating Janus filaments comprising driven and passive sectors and textiles incorporating driven and passive filaments. Transitions between alternative shapes and coexistence of…

Soft Condensed Matter · Physics 2019-05-15 A. P. Zakharov , L. M. Pismen

We propose an approach to entangle spins of electrons floating on liquid helium by coherently manipulating their spin-orbit interactions. The configuration consists of single electrons, confined individually on liquid helium by the…

Quantum Physics · Physics 2012-11-14 Miao Zhang , L. F. Wei

Controlling magnetism and electronic properties of two-dimensional (2D) materials by purely electrical means is crucial and highly sought for high-efficiency spintronics devices since electric field can be easily applied locally compared…

Materials Science · Physics 2022-05-18 Yu Chen , Qiang Fan , Yiding Liu , Gang Yao

The application of AC electric fields in aqueous suspensions of anisotropic particles leads to unbalanced liquid flows and nonlinear, induced-charge electrophoretic (ICEP) motion. We report experimental observations of the motion of "Janus"…

Fluid Dynamics · Physics 2009-11-13 Sumit Gangwal , Olivier J. Cayre , Martin Z. Bazant , Orlin D. Velev

Sliding ferroelectricity is emerging as a distinct and promising mechanism for realizing ferroelectricity in low-dimensional systems, offering new design principles beyond the conventional ferroelectric mechanism. Further, the coexistence…

Materials Science · Physics 2025-12-23 Akshay Mahajan , Awadhesh Narayan

The ability to optically trap and manipulate artificial microswimmers such as active Janus particles (JPs) provides a breakthrough in active matter research and applications. However, it presents significant challenges because of the…

Soft Condensed Matter · Physics 2026-02-05 Sanatan Halder , Manas Khan

A multicomponent mixture of Janus colloids with distinct catalytic coats and phoretic mobilities is a promising theoretical system to explore the collective behavior arising from nonreciprocal interactions. An active colloid produces (or…

Soft Condensed Matter · Physics 2024-02-15 Gennaro Tucci , Ramin Golestanian , Suropriya Saha

Janus monolayers have long been captivated as a popular notion for breaking in-plane and out-of-plane structural symmetry. Originated from chemistry and materials science, the concept of Janus functions have been recently extended to…

The complex interactions underlying collective motion in biological systems give rise to emergent behaviours such as flocking, sorting, and cooperative transport. These dynamics often involve species with different motilities coordinating…

Soft Condensed Matter · Physics 2025-06-19 Laura Alvarez , Elena Sesé-Sansa , Demian Levis , Ignacio Pagonabarraga , Lucio Isa

Achieving controlled and directed motion of artificial nanoscale systems in three-dimensional fluid environments remains a key-challenge in active matter, primarily due to the prevailing thermal fluctuations that rapidly randomize the…

Soft Condensed Matter · Physics 2026-02-20 Henri Truong , Chiara Moretti , Lionel Buisson , Benjamin Abecassis , Eric Grelet