Active nematics

A Doostmohammadi, J Ignés-Mullol… - Nature …, 2018 - nature.com
Active matter extracts energy from its surroundings at the single particle level and transforms
it into mechanical work. Examples include cytoskeleton biopolymers and bacterial …

Proliferating active matter

O Hallatschek, SS Datta, K Drescher, J Dunkel… - Nature Reviews …, 2023 - nature.com
The fascinating patterns of collective motion created by autonomously driven particles have
fuelled active-matter research for over two decades. So far, theoretical active-matter …

Ultra-extensible ribbon-like magnetic microswarm

J Yu, B Wang, X Du, Q Wang, L Zhang - Nature communications, 2018 - nature.com
Various types of structures self-organised by animals exist in nature, such as bird flocks and
insect swarms, which stem from the local communications of vast numbers of limited …

Topological defects in the nematic order of actin fibres as organization centres of Hydra morphogenesis

Y Maroudas-Sacks, L Garion, L Shani-Zerbib… - Nature Physics, 2021 - nature.com
Animal morphogenesis arises from the complex interplay between multiple mechanical and
biochemical processes with mutual feedback. Develo** an effective, coarse-grained …

Emergence of three-dimensional order and structure in growing biofilms

R Hartmann, PK Singh, P Pearce, R Mok, B Song… - Nature physics, 2019 - nature.com
Surface-attached bacterial biofilms are self-replicating active liquid crystals and the
dominant form of bacterial life on Earth,,–. In conventional liquid crystals and solid-state …

Morphological instability and roughening of growing 3D bacterial colonies

A Martínez-Calvo, T Bhattacharjee… - Proceedings of the …, 2022 - National Acad Sciences
How do growing bacterial colonies get their shapes? While colony morphogenesis is well
studied in two dimensions, many bacteria grow as large colonies in three-dimensional (3D) …

Species-independent attraction to biofilms through electrical signaling

J Humphries, L **ong, J Liu, A Prindle, F Yuan… - Cell, 2017 - cell.com
Bacteria residing within biofilm communities can coordinate their behavior through cell-to-
cell signaling. However, it remains unclear if these signals can also influence the behavior of …

Topological defects in epithelia govern cell death and extrusion

TB Saw, A Doostmohammadi, V Nier, L Kocgozlu… - Nature, 2017 - nature.com
Epithelial tissues (epithelia) remove excess cells through extrusion, preventing the
accumulation of unnecessary or pathological cells. The extrusion process can be triggered …

Fluid flows created by swimming bacteria drive self-organization in confined suspensions

E Lushi, H Wioland… - Proceedings of the …, 2014 - National Acad Sciences
Concentrated suspensions of swimming microorganisms and other forms of active matter
are known to display complex, self-organized spatiotemporal patterns on scales that are …

A growing bacterial colony in two dimensions as an active nematic

D Dell'Arciprete, ML Blow, AT Brown… - Nature …, 2018 - nature.com
How a single bacterium becomes a colony of many thousand cells is important in
biomedicine and food safety. Much is known about the molecular and genetic bases of this …