353 citations · 864 across the 10 of their papers we have counts for
7 papers · 1 filter
Soft yet sharp interfaces in a vertex model of confluent tissue
Daniel M. Sussman, J. M. Schwarz, M. Cristina Marchetti +1
How can dense biological tissue maintain sharp boundaries between coexisting cell populations? We explore this question within a simple vertex model for cells, focusing on the role…
Geometric frustration and solid-solid transitions in model 2D tissue
Michael Moshe, Mark J. Bowick, M. Cristina Marchetti
We study the mechanical behavior of two-dimensional cellular tissues by formulating the continuum limit of discrete vertex models based on an energy that penalizes departures from…
Topological Sound and Flocking on Curved Surfaces
Suraj Shankar, Mark J. Bowick, M. Cristina Marchetti
Active systems on curved geometries are ubiquitous in the living world. In the presence of curvature orientationally ordered polar flocks are forced to be inhomogeneous, often requ…
Probing the shear viscosity of an active nematic
Pau Guillamat, Jordi Ignés-Mullol, Suraj Shankar +2
In vitro reconstituted active systems, such as the ATP-driven microtubule bundle suspension developed by the Dogic group, provide a fertile testing ground for elucidating the pheno…
Defect annihilation and proliferation in active nematics
Luca Giomi, Mark J. Bowick, Xu Ma +1
Liquid crystals inevitably possess topological defect excitations generated through boundary conditions, applied fields or in quenches to the ordered phase. In equilibrium pairs of…
Cooperative Self-Propulsion of Active and Passive Rotors
Yaouen Fily, Aparna Baskaran, M. Cristina Marchetti
Using minimal models for low Reynolds number passive and active rotors in a fluid, we characterize the hydrodynamic interactions among rotors and the resulting dynamics of a pair o…
Polar Patterns in Active Fluids
Luca Giomi, M. Cristina Marchetti
We study the spatio-temporal dynamics of a model of polar active fluid in two dimensions. The system exhibits a transition from an isotropic to a polarized state as a function of d…