Behavior of chiral active nematics confined to nanoscopic circular region

Mirantsev, L. V.

doi:10.1140/epje/s10189-021-00120-y

Cited by 6 publications

(1 citation statement)

References 34 publications

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“…20,39,42,45,49–55 Experiments in the annulus geometry 46,47 and lane configurations 44 demonstrate that confinement can tame this turbulence to generate ordered flows. However, despite these experiments and previous theoretical investigations of active nematics confined in channels, 24,28,37,43,44,56–58 disks, 45,46,59,60 and annulus geometries, 37,46,47,61,62 the influence of channel curvature and finite channel length on emergent behaviors is yet to be studied in detail.…”

Section: Introductionmentioning

confidence: 99%

From disks to channels: dynamics of active nematics confined to an annulus

et al. 2023

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Section: Introductionmentioning

confidence: 99%

From disks to channels: dynamics of active nematics confined to an annulus

et al. 2023

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Orientational ordering of active nematics confined to a 2D nanoscopic ring-shaped cavity

Oliveira

Mirantsev

Lyra

et al. 2023

Journal of Molecular Liquids

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The collective motion of thermophoretic-type active particle suspension under spatial–temporal modulation

Shane

Tang

2021

AIP Advances

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The mesoscopic collective behavior of a thermophoretic-type active particle suspension under a spatial–temporal modulated excitation field is experimentally studied. By using a digital light processing chip, a sinusoidal-like spatial–temporal varying laser pattern (intensity wave) is projected on the particle suspension to modulate the particle propulsion strength through the thermophoretic effect and to exert spatial confinement through the optical trapping effect. For static and slow (wave speed ≪ particle propulsion speed) modulations, in contrast to the passive particles trapped around the wave crest, the self-propulsion strength splits the particle distribution into two branches adjacent to the edges of confinement similar to the bacteria system, and the profile of particle distribution moves coherently with the modulation wave. Once the wave speed increases to the order of the particle propulsion speed, the splitting of particle distribution disappears. Furthermore, it is remarkable that the forward propagating modulation-induced certain fraction of backward streaming particles are observed. This is a generic behavior of a self-propelling active particle suspension, which is not found in the bacteria system. This finding should be useful for particle manipulation at the mesoscopic scale.

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Behavior of chiral active nematics confined to nanoscopic circular region

Cited by 6 publications

References 34 publications

From disks to channels: dynamics of active nematics confined to an annulus

From disks to channels: dynamics of active nematics confined to an annulus

Orientational ordering of active nematics confined to a 2D nanoscopic ring-shaped cavity

The collective motion of thermophoretic-type active particle suspension under spatial–temporal modulation

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