Results 81 to 90 of about 3,147 (162)

Tactic Behaviors in Asymmetric Pacman Particles

open access: yesSmall, Volume 22, Issue 56, 8 October 2026.
The swimming behavior of TiO2 Pacman particles exhibits different modes depending on the fuel and illumination conditions. However, the behavior of these intrinsically asymmetric particles is still not well understood, and here we present a first approach to modeling their dynamics. Furthermore, we investigate their fundamental responses to some of the
Daniel Gordon   +8 more
wiley   +1 more source

Interaction‐Driven Assembly Pathways in Heterogeneous Active Microrobotic Systems

open access: yesAdvanced Functional Materials, Volume 36, Issue 73, 10 September 2026.
Peanut‐ and cube‐shaped light‐powered microrobots exhibit distinct magnetic and photocatalytic responses that determine their heterogeneous self‐assembly. In the dark, magnetic dipole interactions drive colloidal copolymerization with cubes acting as nucleation centers, whereas under light irradiation, phoretic interactions compete with magnetic ...
Domenico Calabrò   +5 more
wiley   +1 more source

Deflection of phototactic microswimmers through obstacle arrays

open access: yes, 2020
International audienceWe study the effect of inhomogeneous environments on the swimming direction of the microalgae \textit{Chlamydomonas Reinhardtii} (CR) in the presence of a light stimulus.
Zimmermann, Walter   +5 more
core   +1 more source

Anisotropic mesoscale turbulence and pattern formation in microswimmer suspensions induced by orienting external fields

open access: yesNew Journal of Physics, 2019
This paper studies the influence of orienting external fields on pattern formation, particularly mesoscale turbulence, in microswimmer suspensions. To this end, we apply a hydrodynamic theory that can be derived from a microscopic microswimmer model ...
Henning Reinken   +3 more
doaj   +1 more source

Propulsion of Planar V‐Shaped Microswimmers in a Conically Rotating Magnetic Field

open access: yesAdvanced Intelligent Systems
Planar magnetic microswimmers bear great potential for in vivo biomedical applications as they can be mass‐produced at minimal costs using standard photolithography techniques. Therefore, it is central to understand how to control their motion.
Yasin Cagatay Duygu   +3 more
doaj   +1 more source

Taming polar active matter with moving substrates: directed transport and counterpropagating macrobands

open access: yesNew Journal of Physics, 2019
Following the goal of using active particles as targeted cargo carriers aimed, for example, to deliver drugs towards cancer cells, the quest for the control of individual active particles with external fields is among the most explored topics in active ...
Alexandra Zampetaki   +3 more
doaj   +1 more source

Microswimmers in patterned environments

open access: yes, 2011
Tiny self-propelled swimmers capable of autonomous navigation through complex environments provide appealing opportunities for localization, pick-up and delivery of microscopic and nanoscopic objects.
Volpe, G.   +15 more
core   +1 more source

Hydrophobicity Influence on Swimming Performance of Magnetically Driven Miniature Helical Swimmers

open access: yesMicromachines, 2019
Helical microswimmers have been involved in a wide variety of applications, ranging from in vivo tasks such as targeted drug delivery to in vitro tasks such as transporting micro objects.
Chengwei Ye   +6 more
doaj   +1 more source

Propulsion of a chiral swimmer in viscoelastic fluids

open access: yesPhysical Review Research
Microswimmers often use chirality to generate translational movement from rotation motion, exhibiting distinct behaviors in complex fluids compared to simple Newtonian fluids. However, the underlying mechanism remains incompletely understood.
Takuya Kobayashi   +2 more
doaj   +1 more source

Thermometric Based‐Microswimmers with Chemical and Optical Engines

open access: yesAdvanced Intelligent Systems
The development of microswimmers with integrated sensing elements opens new avenues for advanced functionalities in microscale environments. Among these, temperature sensing is critical for applications ranging from biomedical diagnostics to catalytic ...
João M. Gonçalves, Katherine Villa
doaj   +1 more source

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