Symmetry, thermodynamics, and topology in active matter

MJ Bowick, N Fakhri, MC Marchetti, S Ramaswamy - Physical Review X, 2022 - APS
The name active matter refers to any collection of entities that individually use free energy to
generate their own motion and forces. Through interactions, active particles spontaneously …

Shear-driven solidification and nonlinear elasticity in epithelial tissues

J Huang, JO Cochran, SM Fielding, MC Marchetti… - Physical Review Letters, 2022 - APS
Biological processes, from morphogenesis to tumor invasion, spontaneously generate shear
stresses inside living tissue. The mechanisms that govern the transmission of mechanical …

The role of non-affine deformations in the elastic behavior of the cellular vertex model

MF Staddon, A Hernandez, MJ Bowick, M Moshe… - Soft Matter, 2023 - pubs.rsc.org
The vertex model of epithelia describes the apical surface of a tissue as a tiling of polygonal
cells, with a mechanical energy governed by deviations in cell shape from preferred, or …

Constitutive model for the rheology of biological tissue

SM Fielding, JO Cochran, J Huang, D Bi, MC Marchetti - Physical Review E, 2023 - APS
The rheology of biological tissue is key to processes such as embryo development, wound
healing, and cancer metastasis. Vertex models of confluent tissue monolayers have …

Shape-tension coupling produces nematic order in an epithelium vertex model

J Rozman, JM Yeomans, R Sknepnek - Physical Review Letters, 2023 - APS
We study the vertex model for epithelial tissue mechanics extended to include coupling
between the cell shapes and tensions in cell-cell junctions. This coupling represents an …

Shaping epithelial lumina under pressure

MJ Bovyn, PA Haas - Biochemical Society Transactions, 2024 - portlandpress.com
The formation of fluid-or gas-filled lumina surrounded by epithelial cells pervades
development and disease. We review the balance between lumen pressure and mechanical …

Tissue flows are tuned by actomyosin-dependent mechanics in developing embryos

RM Herrera-Perez, C Cupo, C Allan, AB Dagle… - PRX life, 2023 - APS
Rapid epithelial tissue flows are essential to building and shaping developing embryos.
However, the mechanical properties of embryonic epithelial tissues and the factors that …

[HTML][HTML] Shear and shear-induced normal responses of origami cylinders relate to their structural asymmetries

G Giménez-Ribes, A Ghorbani, SY Teng… - Materials & Design, 2024 - Elsevier
Origami cylinders have been studied extensively under compression, however, their normal
force response under shear deformation is still ill-understood. We experimentally studied the …

Continuum theory for confluent cell monolayers: Interplay between cell growth, division, and intercalation

P Bandil, FJ Vernerey - Journal of the Mechanics and Physics of Solids, 2023 - Elsevier
Mechanical forces generated by dynamic cellular activities play a crucial role in the
morphogenesis and growth of biological tissues. While the influence of mechanics is clear …

Active T1 transitions in cellular networks

C Duclut, J Paijmans, MM Inamdar, CD Modes… - The European Physical …, 2022 - Springer
In amorphous solids as in tissues, neighbor exchanges can relax local stresses and allow
the material to flow. In this paper, we use an anisotropic vertex model to study T1 …