Learning to control active matter

MJ Falk, V Alizadehyazdi, H Jaeger, A Murugan - Physical Review Research, 2021 - APS
The study of active matter has revealed novel non-equilibrium collective behaviors,
illustrating their potential as a new materials platform. However, most work treat active matter …

Vesicle shape transformations driven by confined active filaments

MSE Peterson, A Baskaran, MF Hagan - Nature communications, 2021 - nature.com
In active matter systems, deformable boundaries provide a mechanism to organize internal
active stresses. To study a minimal model of such a system, we perform particle-based …

Synchronized oscillations in swarms of nematode Turbatrix aceti

A Peshkov, S McGaffigan, AC Quillen - Soft Matter, 2022 - pubs.rsc.org
There is a recent surge of interest in the behavior of active particles that can at the same time
align their direction of movement and synchronize their oscillations, known as swarmalators …

Encapsulated bacteria deform lipid vesicles into flagellated swimmers

L Le Nagard, AT Brown, A Dawson… - Proceedings of the …, 2022 - National Acad Sciences
We study a synthetic system of motile Escherichia coli bacteria encapsulated inside giant
lipid vesicles. Forces exerted by the bacteria on the inner side of the membrane are …

Rectification of confined soft vesicles containing active particles

MC Gandikota, A Cacciuto - Soft Matter, 2023 - pubs.rsc.org
One of the most promising features of active systems is that they can extract energy from
their environment and convert it to mechanical work. Self propelled particles enable …

Polar order, shear banding, and clustering in confined active matter

D Canavello, RH Damascena, LRE Cabral… - Soft Matter, 2024 - pubs.rsc.org
We investigate the collective behavior of sterically interacting self-propelled particles
confined in a harmonic potential. Our theoretical and numerical study unveils the emergence …

Constraint dependence of pressure on a passive probe in an active bath

P Liu, L Li, L Ning, N Zheng… - Journal of Physics …, 2023 - iopscience.iop.org
Mechanical pressure in active matter is generally not a state variable and possesses
abnormal properties, in stark contrast to equilibrium systems. We here show that the …

Absorption of self-propelled particles into a dense porous medium

B Qian, K Chen - Physical Chemistry Chemical Physics, 2021 - pubs.rsc.org
We study the absorption of self-propelled particles into a finite-size dense porous medium,
which is mimicked by an obstacle array. We find that, depending on the competition of the …

Noncentral forces mediated between two inclusions in a bath of active Brownian rods

M Sebtosheikh, A Naji - Scientific Reports, 2021 - nature.com
Abstract Using Brownian Dynamics simulations, we study effective interactions mediated
between two identical and impermeable disks (inclusions) immersed in a bath of identical …

Migration and deformation of a droplet enclosing an active particle

S Kawakami, PM Vlahovska - arXiv preprint arXiv:2407.10009, 2024 - arxiv.org
The encapsulation of active particles, such as bacteria or active colloids, inside a droplet
gives rise to nontrivial shape dynamics and droplet motility. To understand this behavior, we …