Pair Interaction between Two Catalytically Active Colloids.
Sign Up to like & getrecommendations! Published in 2023 at "Small"
DOI: 10.1002/smll.202300817
Abstract: Due to the intrinsically complex non-equilibrium behavior of the constituents of active matter systems, a comprehensive understanding of their collective properties is a challenge that requires systematic bottom-up characterization of the individual components and their… read more here.
Keywords: active colloids; behavior; interaction two; catalytically active ... See more keywords
Atmospheric Laser Deposition of Sers-Active Colloids of Noble Metals (Ag, Au, and Pt)
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Engineering Physics and Thermophysics"
DOI: 10.1007/s10891-018-1860-6
Abstract: A laser procedure is proposed for the precipitation of drop-shaped nanoparticles of noble metals (Ag, Au, and Pt) into aqueous media for using them as active media in surface-enhanced Raman spectroscopy. The detection limit recorded… read more here.
Keywords: laser deposition; atmospheric laser; noble metals; sers active ... See more keywords
Numerical simulation for clustering and pattern formation in active colloids with mass-preserving characteristic finite element method
Sign Up to like & getrecommendations! Published in 2021 at "Computer Methods in Applied Mechanics and Engineering"
DOI: 10.1016/j.cma.2021.113806
Abstract: Abstract We consider the numerical approximations to simulate the active colloids dynamic process. One linear, decoupled, mass-preserving scheme is proposed, in which mass-preserving characteristic finite element method is utilized for the density equation of active… read more here.
Keywords: mass preserving; method; finite element; active colloids ... See more keywords
Ionic Diffusiophoresis of Active Colloids via Galvanic Exchange Reactions
Sign Up to like & getrecommendations! Published in 2025 at "Nano Letters"
DOI: 10.1021/acs.nanolett.5c01567
Abstract: In order to move toward realistic applications by extending active matter propulsion reactions beyond the classical catalytic hydrogen peroxide decomposition, we investigate the self-propulsion mechanism of Janus particles. To address the influences of ionic species,… read more here.
Keywords: active colloids; galvanic exchange; diffusiophoresis active; colloids via ... See more keywords
Chemical Auxiliary for Photocatalytic Active Colloids.
Sign Up to like & getrecommendations! Published in 2024 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.4c10100
Abstract: Active colloids with the ability to self-propel and collectively organize are emerging as indispensable elements in microrobotics and soft matter physics. For chemically powered colloids, their activity is often induced by gradients of chemical species… read more here.
Keywords: active colloids; photocatalytic active; chemical auxiliary; auxiliary photocatalytic ... See more keywords
Formation of stable and responsive collective states in suspensions of active colloids
Sign Up to like & getrecommendations! Published in 2020 at "Nature Communications"
DOI: 10.1038/s41467-020-16161-4
Abstract: Many animal species organise into disordered swarms, polarised flocks or swirls to protect from predators or optimise foraging. Previous studies suggest that such collective states are related to a critical point, which could explain their… read more here.
Keywords: responsive collective; critical point; collective states; formation stable ... See more keywords
Active colloids orbiting giant vesicles.
Sign Up to like & getrecommendations! Published in 2021 at "Soft matter"
DOI: 10.1039/d0sm02183k
Abstract: Living or artificial self-propelled colloidal particles show original dynamics when they interact with other objects like passive particles, interfaces or membranes. These active colloids can transport small cargos or can be guided by passive objects,… read more here.
Keywords: vesicle; orbiting giant; particle; colloids orbiting ... See more keywords
The interplay between chemo-phoretic interactions and crowding in active colloids
Sign Up to like & getrecommendations! Published in 2023 at "Soft Matter"
DOI: 10.1039/d2sm00957a
Abstract: Many motile microorganisms communicate with each other and their environments via chemical signaling which leads to long-range interactions mediated by self-generated chemical gradients. However, consequences of the interplay between crowding and chemotactic interactions on their… read more here.
Keywords: active colloids; packing fractions; interplay chemo; phoretic interactions ... See more keywords
The motion of catalytically active colloids approaching a surface
Sign Up to like & getrecommendations! Published in 2024 at "Soft Matter"
DOI: 10.1039/d4sm01387e
Abstract: Catalytic microswimmers typically swim close to walls due to hydrodynamic and/or phoretic effects. The walls in turn are known to affect their propulsion, making it difficult to single out the contributions that stem from particle-based… read more here.
Keywords: propulsion; active colloids; speed; catalytically active ... See more keywords
Gating and tunable confinement of active colloids within patterned environments
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DOI: 10.1039/d4sm01512f
Abstract: Active colloidal particles typically exhibit a pronounced affinity for accumulating and being captured at boundaries. Here, we engineer long-range repulsive interactions between colloids that self-propel under an electric field and... read more here.
Keywords: tunable confinement; gating tunable; confinement active; active colloids ... See more keywords
Dipolar colloids in three dimensions: non-equilibrium structure and re-entrant dynamics
Sign Up to like & getrecommendations! Published in 2025 at "Soft Matter"
DOI: 10.1039/d5sm00182j
Abstract: Understanding of collective behaviour in active systems is massively enhanced by minimal models which nevertheless capture its essence. Active colloids, whose interactions can be tuned and accurately quantified provide a valuable realisation of suitable basic… read more here.
Keywords: field; active colloids; dipolar colloids; colloids three ... See more keywords