Bacterial active matter

IS Aranson - Reports on Progress in Physics, 2022 - iopscience.iop.org
Bacteria are among the oldest and most abundant species on Earth. Bacteria successfully
colonize diverse habitats and play a significant role in the oxygen, carbon, and nitrogen …

Autonomous materials systems from active liquid crystals

R Zhang, A Mozaffari, JJ de Pablo - Nature Reviews Materials, 2021 - nature.com
Liquid crystals (LCs) are ubiquitous in display technologies. The orientational ordering in the
nematic phase of LCs gives rise to structural anisotropy, the ability to form topological …

Liquid Crystalline systems from nature and interaction of living organisms with liquid crystals

WS Kim, JH Im, H Kim, JK Choi, Y Choi… - Advanced …, 2023 - Wiley Online Library
Biomaterials, which are substances interacting with biological systems, have been
extensively explored to understand living organisms and obtain scientific inspiration (such …

Chirotactic response of microswimmers in fluids with odd viscosity

Y Hosaka, M Chatzittofi, R Golestanian, A Vilfan - Physical Review Research, 2024 - APS
Odd viscosity is a property of chiral active fluids with broken time-reversal and parity
symmetries. We show that the flow of such a fluid around a rotating axisymmetric body is …

Design of nematic liquid crystals to control microscale dynamics

OD Lavrentovich - Liquid crystals reviews, 2020 - Taylor & Francis
Dynamics of small particles, both living and inanimate, has fascinated scientists for
centuries. Learning how to control it could open technological opportunities in the …

Bacteria Navigate Anisotropic Media using a Flagellar Tug-of-Oars

AG Prabhune, AS García-Gordillo, IS Aranson… - PRX Life, 2024 - APS
Bacteria thrive in anisotropic media such as biofilms, biopolymer solutions, and soil pores. In
strongly mechanically anisotropic media, physical interactions force bacteria to swim along a …

Fabrication of mesogenic epoxy microsphere-filled negative-dielectric-anisotropy cholesteric liquid crystals for bistable devices

H Zhang, F Li, R Zhang, Z Deng, Y Ma, Z He… - Journal of Molecular …, 2023 - Elsevier
Bistable devices, which can operate in two field-free stable states, are highly desirable for
develo** smart optical devices with true energy conservation. Cholesteric liquid crystals …

Frustrated 'run and tumble' of swimming Escherichia coli bacteria in nematic liquid crystals

M Goral, E Clement, T Darnige… - Interface …, 2022 - royalsocietypublishing.org
In many situations, bacteria move in complex environments, as soils, oceans or the human
gut-track, where carrier fluids show complex structures associated with non-Newtonian …

A nematic liquid crystal with an immersed body: equilibrium, stress and paradox

TGJ Chandler, SE Spagnolie - Journal of Fluid Mechanics, 2023 - cambridge.org
We examine the equilibrium configurations of a nematic liquid crystal with an immersed
body in two dimensions. A complex variables formulation provides a means for finding …

On particle motion in a confined square domain filled with active fluids

H Ye, Z Ouyang, J Lin - Soft Matter, 2024 - pubs.rsc.org
The motion of passive particles in a confined square domain filled with active fluids has
been numerically simulated using a direct-fictitious domain method. The ratio of particle …