538 citations · 4.8k across the 126 of their papers we have counts for
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Small Obstacle in a Large Polar Flock
Joan Codina, Benoît Mahault, Hugues Chaté +3
We show that arbitrarily large polar flocks are susceptible to the presence of a single small obstacle. In a wide region of parameter space, the obstacle triggers counter-propagati…
Active microrheology in corrugated channels: comparison of thermal and colloidal baths
P. Malgaretti, A. M. Puertas, I. Pagonabarraga
The dynamics of colloidal suspension confined within porous materials strongly differs from that in the bulk. In particular, within porous materials, the presence of boundaries wit…
Hydrodynamic and geometric effects in the sedimentation of model run-and-tumble bacteria
Andrea Scagliarini, Ignacio Pagonabarraga
The sedimentation process in a suspension of bacteria is the result of the competition between gravity and the intrinsic motion of the microorganisms. We perform simulations of run…
Active nematic flows confined in a two dimensional channel with hybrid alignment at the walls: a unified picture
C. Rorai, F. Toschi, I. Pagonabarraga
Active nematic fluids confined in narrow channels generate spontaneous flows when the activity is sufficiently intense. Recently, it was shown that if the molecular anchoring at th…
From Motility-Induced Phase-Separation to Glassiness in Dense Active Matter
Matteo Paoluzzi, Demian Levis, Ignacio Pagonabarraga
Dense active systems are widespread in nature, examples range from bacterial colonies to biological tissues. Dense clusters of active particles can be obtained by increasing the pa…
Alignment interactions drive structural transitions in biological tissues
Matteo Paoluzzi, Luca Angelani, Giorgio Gosti +3
Experimental evidence shows that there is a feedback between cell shape and cell motion. How this feedback impacts the collective behavior of dense cell monolayers remains an open…