24 citations · 105 across the 11 of their papers we have counts for
12 papers · 1 filter
Emergence of Active Foams in a Minimal Cognitive Flocking Model
Aryan Dwivedi, Diganta Bhaskar, Anil Kumar Dasanna
We investigate a minimal visual perception-driven model of self-propelled particles that interact through purely position-based cohesive steering within a finite vision cone, in th…
Shape Transformations and Rupture of a Vesicle Driven by an Encapsulated Active Particle
Gaurav Kumar, Abhishek Chaudhuri, Rajeev Kapri +1
Biological membranes are highly deformable structures that undergo shape transformations during numerous cellular processes. These transformations are often driven by active agents…
Semiflexible Ring Polymers on Active Motor Beds: Nonequilibrium Dynamics and Conformations
Sandip Roy, Abhishek Chaudhuri, Anil Kumar Dasanna
A semiflexible ring polymer on a motor-protein bed exhibits activity- and processivity-dependent rotational and conformational dynamics that are not captured by linear-chain behavi…
Spectral Signatures of Active Fluctuations in Semiflexible Polymers
Love Grover, Anil Kumar Dasanna, Abhishek Chaudhuri
We study how an active bath is transduced into the internal fluctuation spectrum of a semiflexible polymer. Starting from the statistics of active forces exerted by an explicit bat…
Non-reciprocal visual perception and polar alignment drive collective states in chiral active particles
Diganta Bhaskar, Abhishek Chaudhuri, Anil Kumar Dasanna
Self-propelled particles rarely move in straight lines; environmental interactions, shape asymmetry, and intrinsic torques generically induce curved or fluctuating trajectories. In…
Confinement and Activity-Driven Dynamics of Semiflexible Polymers in Motility Assays
Sandip Roy, Abhishek Chaudhuri, Anil Kumar Dasanna
We investigate the nonequilibrium dynamics of semiflexible polymers driven by motor proteins (MPs) in two-dimensional motility assays under harmonic confinement. Using a coarse-gra…
Packing and ejection dynamics of polymers: Role of confinement, polymer stiffness and activity
Gokul Upadhyay, Rajeev Kapri, Anil Kumar Dasanna +1
The translocation of biopolymers, such as DNA and proteins, across cellular or nuclear membranes is essential for numerous biological processes. The translocation dynamics are infl…
Interacting particles in an activity landscape
Adam Wysocki, Anil K. Dasanna, Heiko Rieger
We study interacting active Brownian particles (ABPs) with a space-dependent swim velocity via simulation and theory. We find that, although an equation of state exists, a mechanic…
Erythrocyte sedimentation: Effect of aggregation energy on gel structure during collapse
Anil Kumar Dasanna, Alexis Darras, Thomas John +4
The erythrocyte (or red blood cell) sedimentation rate (ESR) is commonly interpreted as a measure of cell aggregation and as a biomarker of inflammation. It is well known that an i…
Erythrocyte sedimentation: Fracture and collapse of a high-volume-fraction soft-colloid gel
Alexis Darras, Anil Kumar Dasanna, Thomas John +4
The erythrocyte sedimentation rate is one of the oldest medical diagnostic methods whose physical mechanisms remain debatable up to date. Using both light microscopy and mesoscale…
Slow closure of denaturation bubbles in DNA: twist matters
Anil Kumar Dasanna, Nicolas Destainville, John Palmeri +1
The closure of long equilibrated denaturation bubbles in DNA is studied using Brownian dynamics simulations. A minimal mesoscopic model is used where the double-helix is made of tw…
Strand diffusion-limited closure of denaturation bubbles in DNA
Anil Kumar Dasanna, Nicolas Destainville, John Palmeri +1
The closure dynamics of a pre-equilibrated DNA denaturation bubble is studied using both Brownian dynamics simulations and an analytical approach. The numerical model consists of t…