301 citations · 1.1k across the 19 of their papers we have counts for
9 papers · 1 filter
How do biofilms feel their environment?
Merrill Asp, Minh Tri Ho Thanh, Arvind Gopinath +1
The ability of bacteria to colonize and grow on different surfaces is an essential process for biofilm development and depends on complex biomechanical interactions between the bio…
Effect of Boundary Constraints on the Nonlinear Flapping of Filaments Animated by Follower Forces
Soheil Fatehiboroujeni, Arvind Gopinath, Sachin Goyal
Elastically driven filaments subjected to animating compressive follower forces provide a synthetic way to mimic the oscillatory beating of active biological filaments such as euka…
The propagation of active-passive interfaces in bacterial swarms
Alison E. Patteson, Arvind Gopinath, Paulo E. Arratia
Propagating interfaces are ubiquitous in nature, underlying instabilities and pattern formation in biology and material science. Physical principles governing interface growth are…
Active colloids in complex fluids
Alison E. Patteson, Arvind Gopinath, Paulo E. Arratia
We review recent work on active colloids or swimmers, such as self-propelled microorganisms, phoretic colloidal particles, and artificial micro-robotic systems, moving in fluid-lik…
Flagellar Kinematics and Swimming of Algal Cells in Viscoelastic Fluids
Boyang Qin, Arvind Gopinath, Jing Yang +2
The motility of microorganisms is influenced greatly by their hydrodynamic interactions with the fluidic environment they inhabit. We show by direct experimental observation of the…
Particle diffusion in active fluids is non-monotonic in size
Alison E. Patteson, Arvind Gopinath, Prashant K. Purohit +1
We experimentally investigate the effect of particle size on the motion of passive polystyrene spheres in suspensions of Escherichia coli. Using particles covering a range of sizes…
Persistence of activity in noisy motor-filament assemblies
Raghunath Chelakkot, Arvind Gopinath, L. Mahadevan
Long, elastic filaments cross-linked and deformed by active molecular motors occur in various natural settings. The overall macroscopic mechanical response of such a composite netw…
Persistence of strain in motor-filament assemblies
Arvind Gopinath, Raghunath Chelakkot, L. Mahadevan
Crosslinked semi-flexible and flexible filaments that are actively deformed by molecular motors occur in various natural settings, such as the ordered eukaryotic flagellum, and the…
Dynamical Self-regulation in Self-propelled Particle Flows
Arvind Gopinath, Michael F. Hagan, M. Cristina Marchetti +1
We study a continuum model of overdamped self-propelled particles with an aligning interaction in two dimensions. By combining analytical and numerical work, we map out the phase d…