[HTML][HTML] Experiments with active and driven synthetic colloids in complex fluids

J Ignés-Mullol, F Sagués - Current Opinion in Colloid & Interface Science, 2022 - Elsevier
In this review, we focus on recent experimental research involving active colloidal particles
of non-biological origin evolving in non-Newtonian fluids. This includes self-propelling active …

Topology of orientational defects in confined smectic liquid crystals

PA Monderkamp, R Wittmann, LBG Cortes… - Physical Review Letters, 2021 - APS
We propose a general formalism to characterize orientational frustration of smectic liquid
crystals in confinement by interpreting the emerging networks of grain boundaries as objects …

Active nematic liquid crystals simulated by particle-based mesoscopic methods

J Macías-Durán, V Duarte-Alaniz, H Híjar - Soft Matter, 2023 - pubs.rsc.org
Two Multi-particle collision dynamics algorithms that simulate nematic liquid crystals are
generalised to reproduce active behaviour. One of the algorithms is due to Shendruk and …

Tunable colloid trajectories in nematic liquid crystals near wavy walls

Y Luo, DA Beller, G Boniello, F Serra… - Nature communications, 2018 - nature.com
The ability to dictate the motion of microscopic objects is an important challenge in fields
ranging from materials science to biology. Field-directed assembly drives microparticles …

Topological fine structure of smectic grain boundaries and tetratic disclination lines within three-dimensional smectic liquid crystals

PA Monderkamp, R Wittmann, M Te Vrugt… - Physical Chemistry …, 2022 - pubs.rsc.org
Observing and characterizing the complex ordering phenomena of liquid crystals subjected
to external constraints constitutes an ongoing challenge for chemists and physicists alike. To …

Hydrodynamic cavitation in Stokes flow of nematic liquid crystal

JJ Yu, L Huang, GY Li, M Bake, CM Wu… - International Journal of …, 2024 - Elsevier
The impact of hydrodynamic cavitation is one of the key factors in the fabrication and
application of metal materials. The hydrodynamic cavitation in anisotropic fluids can be …

Sorting and separation of microparticles by surface properties using liquid crystal-enabled electro-osmosis

C Peng, T Turiv, Y Guo, QH Wei, OD Lavrentovich - Liquid Crystals, 2018 - Taylor & Francis
Sorting and separation of microparticles is a challenging problem of interdisciplinary nature.
Existing technologies can differentiate microparticles by their bulk properties, such as size …

Controllable particle migration in liquid crystal flows

M Lesniewska, N Mottram, O Henrich - Soft Matter, 2022 - pubs.rsc.org
We observe novel positional control of a colloidal particle in microchannel flow of a nematic
liquid crystal. Lattice Boltzmann simulations show multiple equilibrium particle positions, the …

[BOOK][B] Colloidal Active Matter: Concepts, Experimental Realizations, and Models

FS Mestre - 2022 - taylorfrancis.com
What do bird flocks, bacterial swarms, cell tissues, and cytoskeletal fluids have in common?
They are all examples of active matter. This book explores how scientists in various …

Colloidal smectics in button-like confinements: Experiment and theory

R Wittmann, PA Monderkamp, J **a, LBG Cortes… - Physical Review …, 2023 - APS
Liquid crystals can self-organize into a layered smectic phase. While the smectic layers are
typically straight, forming a lamellar pattern in bulk, external confinement may drastically …