4 papers
Active particles knead three-dimensional gels into open crumbs
Martin Cramer Pedersen, Sourav Mukherjee, Amin Doostmohammadi +2
Colloidal gels are prime examples of functional materials exhibiting disordered, amorphous, yet meta-stable forms. They maintain stability through short-range attractive forces and…
Evidence of robust, universal conformal invariance in living biological matter
Benjamin H. Andersen, Francisco M. R. Safara, Valeriia Grudtsyna +5
Collective cellular movement plays a crucial role in many processes fundamental to health, including development, reproduction, infection, wound healing, and cancer. The emergent d…
Periodic orbits, pair nucleation, and unbinding of active nematic defects on cones
Farzan Vafa, David R. Nelson, Amin Doostmohammadi
Geometric confinement and topological constraints present promising means of controlling active materials. By combining analytical arguments derived from the Born-Oppenheimer appro…
Spontaneous flows and dynamics of full-integer topological defects in polar active matter
Jonas Rønning, Julian Renaud, Amin Doostmohammadi +1
Polar active matter of self-propelled particles sustain spontaneous flows through the full-integer topological defects. We study theoretically the effect of both polar and dipolar…