Metareview: a survey of active matter reviews

The European Physical Journal E, Journal Year: 2025, Volume and Issue: 48(2)

Published: Feb. 1, 2025

In the past years, amount of research on active matter has grown extremely rapidly, a fact that is reflected in particular by existence more than 1000 reviews this topic. Moreover, field become very diverse, ranging from theoretical studies statistical mechanics particles to applied work medical applications microrobots and biological systems artificial swimmers. This makes it difficult get an overview over as whole. Here, we provide such form metareview article surveys existing review articles books matter. Thereby, provides useful starting point for finding literature about specific

Language: Английский

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Microscopic origin of tunable assembly forces in chiral active environments

Soft Matter, Journal Year: 2024, Volume and Issue: 20(20), P. 4111 - 4126

Published: Jan. 1, 2024

Chiral active matter generates strong assembly forces for passive solute particles and provides a novel route to form structures not found in equilibrium.

Language: Английский

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Engineering Light‐Driven Rod‐Shaped Micromotors for Exhibiting Controlled and Tunable Multimode Swimming

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: 12(21)

Published: May 17, 2024

Abstract The recent era of research has been focused on attaining precise and adjustable propulsion modes in micromotors, with remarkable implications microrobotics active‐matter applications. This study introduces a novel design rod‐shaped micromotors featuring light‐driven motion wavelength‐dependent multimodal swimming behavior. are fabricated through the Glancing Angle Deposition (GLAD) technique, which offers flexible approach to engineering surfaces by incorporating photocatalytic materials (TiO 2 Cu O) at specific locations. Here, three distinct designs (titania, hybrid‐1, hybrid‐2) presented that programmed showcase diverse behaviors movements (linear, helical, axial rotation) when exposed wavelength. application light facilitates convenient control over activity mode switching altering between UV visible ranges. Numerical modeling using finite element is performed validate experimental results, demonstrating excellent agreement findings. present anticipated be helpful tailoring such complex micro/nanoscale advanced functional intricating desired for various applications micro/nanorobotics.

Language: Английский

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Functional dye-doped liquid crystal smart windows: From sunlight manipulation to sunlight utilization

Sustainable materials and technologies, Journal Year: 2025, Volume and Issue: unknown, P. e01244 - e01244

Published: Jan. 1, 2025

Language: Английский

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Short term vs. long term: Optimization of microswimmer navigation on different time horizons

Physical Review Research, Journal Year: 2025, Volume and Issue: 7(1)

Published: March 10, 2025

We use reinforcement learning to find strategies that allow microswimmers in turbulence avoid regions of large strain. This question is motivated by the hypothesis swimming microorganisms tend such minimize risk predation. ask which local cues a microswimmer must measure efficiently straining regions. it can succeed without directional information, merely measuring magnitude However, swimmer avoids more if sign strain gradients. compare our results with those an earlier study [N. Mousavi , ] where short-time expansion was used optimal strategies. work well some cases, but not others. derive theory explains when time horizon matters for optimization problem and does not. strategy best performance coincides correlation turbulent fluctuations. also explain how update frequency (the at updates its strategy) affects found higher frequencies yield better performance. Published American Physical Society 2025

Language: Английский

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Dynamics of Pulsed-Laser Interaction with Janus Particles

ACS Photonics, Journal Year: 2025, Volume and Issue: 12(4), P. 1936 - 1943

Published: March 12, 2025

Janus particles, with their flexible chemistry and multifunctionality, have broadened the scope of optical manipulation field as an emerging class materials. Laser-based is particularly promising for half-metal-coated offering a platform to study thermal effects. However, role laser's operation regime in particle behavior needs be understood better. Hence, this work, we studied interaction nanosecond-pulsed lasers on 4.1 μm Au-Janus particles 100 nm gold cap. We focused three sections: (1) observed pulse energy influence regimes: In low-influence (less than ∼10 nJ), maintains its intrinsic Brownian motion. medium-influence ∼40 exhibits extended range high-influence (higher undergoes superdiffusion establishes new equilibrium position. (2) During trials, threshold 4 nJ (average power 40 μW) was sufficient move against laser spot. achieved translation velocities 0.9–5.1 μm/s at 4–50 nJ. (3) The cap damaged 20 (fluence 0.7 J/cm2) when particle, consistent theoretical predictions, ablation process generates micro- submicrometer particles. These findings reveal potential pulsed precise, power-efficient advancing our understanding laser–particle interactions opening pathways applications.

Language: Английский

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Reflection on Relativity of Space-Time-Symmetry

Published: March 13, 2025

The advances in modern science confirm the widely accepted assumption that space-time symmetry and relativity (STSR) are common fundamental attributes (forms of existence) elementary particles, galaxies, biological objects. Our consideration focuses on impact universal handedness (time arrow, chirality, or mirror reflection asymmetry) chirality transfer observed within physical matter. Symmetry perturbations about how space time related. integrity universe, meaning every part Nature exists only relation to rest world, refers most generalized form principle (RP). first reflections RP human intellect captured by Galileo Galilei were not explicitly associated with notion symmetry. A interpretation links quantum physics biology. limitations intuitive understanding external world gradually conquered language geometry integration artificial intelligence (AI).

Language: Английский

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Reflection on Relativity of Space-Time-Symmetry

Published: April 7, 2025

The integrity of the universe thesis is most generalized form relativity principle. It agrees with biological principle that no part human body unrelated to organism's function. advances in modern science confirm widely accepted assumption space-time symmetry and (STSR) are common fundamental attributes (forms existence) elementary particles, galaxies, objects. Symmetry movement, dimension, scale-dependent, i.e., not an absolute entity. Our consideration focuses on impact universal handedness (time arrow, chirality, or mirror reflection asymmetry) chirality transfer observed within physical matter. perturbations about how space time related. universe, meaning every Nature exists only relation rest world, refers (RP). Galileo Galilei was first among scientists capture phenomenon relativity. However, his intuition did explicitly associate notion RP. A interpretation RP links quantum physics biology. limitations intuitive understanding external world gradually conquered by language geometry integration artificial intelligence (AI).

Language: Английский

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Self-organized Patterns in Predator-Prey Droplet Systems

Published: May 17, 2024

Non-equilibrium patterns are widespread in nature and often arise from the self-organization of constituents through nonreciprocal chemotactic interactions. In this study, we demonstrate how active oil-in-water droplet mixtures with predator-prey interactions can result a variety self-organized patterns. By manipulating physical parameters, diameter ratio number ratio, identify distinct classes within binary system, rationalize pattern formation, quantify motilities. Experimental results recapitulated numerical simulations using minimal computational model that solely incorporates steric repulsion among constituents. The time evolution is investigated chemically explained. We also investigate vary differing interaction strength by altering surfactant composition. Leveraging insights framework extended to ternary mixture composed multiple chasing pairs create directed hierarchical organization. Our findings rationalizable, be programmed system provide basis for exploration emergent organization higher order complexity colloids.

Language: Английский

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Self‐organized Patterns in Non‐reciprocal Active Droplet Systems

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 25, 2024

Abstract Non‐equilibrium patterns are widespread in nature and often arise from the self‐organization of constituents through nonreciprocal chemotactic interactions. In this study, we demonstrate how active oil‐in‐water droplet mixtures with predator‐prey interactions can result a variety self‐organized patterns. By manipulating physical parameters, diameter ratio number ratio, identify distinct classes within binary system, rationalize pattern formation, quantify motilities. Experimental results recapitulated numerical simulations using minimal computational model that solely incorporates steric repulsion among constituents. The time evolution is investigated chemically explained. We also investigate vary differing interaction strength by altering surfactant composition. Leveraging insights framework extended to ternary mixture composed multiple chasing pairs create directed hierarchical organization. Our findings rationalizable, be programmed system provide basis for exploration emergent organization higher order complexity colloids.

Language: Английский

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