98 citations · 399 across the 18 of their papers we have counts for
20 papers
Risk-Controlled DFT Selection for Machine-Learned Interatomic Potentials
Kun Ryu, Yeo Jin Jung, Shyue Ping Ong +2
Automated materials discovery requires evaluating large pools of candidate configurations, with density functional theory (DFT) as a major throughput bottleneck. Pretrained machine…
Emergent odd response in active chiral films
Seema Chahal, Naveen Kumar D, Brato Chakrabarti
Active chiral fluids can support a nondissipative transport coefficient known as odd (or Hall) viscosity. Hydrodynamic descriptions of such fluids typically introduce odd viscosity…
Growing, Buckling, and Swirling: motility from polymerization
Naveen Kumar D, Michael J. Shelley, Brato Chakrabarti
Locomotion in low-Reynolds-number environments is achieved through a remarkable diversity of strategies, from flagellar rotation and ciliary beating to large-scale body deformation…
Reversibility, Chaos, and Attractors in Periodically Sheared Elastic Filaments
Francesco Bonacci, Brato Chakrabarti, Olivia du Roure +2
The dynamics of filaments in flow are central to understanding a wide range of biological and soft-matter systems, yet their behavior under time-dependent forcing remains poorly un…
Hydrodynamic instabilities in driven chiral suspensions
Seema Chahal, Brato Chakrabarti
Active Stokesian suspensions are conventionally understood to generate dipolar stresses that destabilize aligned states in the bulk and drive system-wide spatiotemporally chaotic f…
The physical consequences of sperm gigantism
Jasmin Imran Alsous, Brato Chakrabarti, Bryce Palmer +1
The male fruit fly produces ~1.8 mm long sperm, thousands of which can be stored until mating in a ~200 micron sac, the seminal vesicle. While the evolutionary pressures driving su…
Geometric Effects in Large Scale Intracellular Flows
Olenka Jain, Brato Chakrabarti, Reza Farhadifar +3
This work probes the role of cell geometry in orienting self-organized fluid flows in the late stage Drosophila oocyte. Recent theoretical work has shown that a model, which relies…
Cytoplasmic stirring by active carpets
Brato Chakrabarti, Stanislav Y. Shvartsman, Michael J. Shelley
Large cells often rely on cytoplasmic flows for intracellular transport, maintaining homeostasis, and positioning cellular components. Understanding the mechanisms of these flows i…
A chemomechanical model of sperm locomotion reveals two modes of swimming
Chenji Li, Brato Chakrabarti, Pedro Castilla +2
The propulsion of mammalian spermatozoa relies on the spontaneous periodic oscillation of their flagella. These oscillations are driven internally by the coordinated action of ATP-…
Fluid circulation driven by collectively organized metachronal waves in swimming T. aceiti nematodes
A. C. Quillen, A. Peshkov, Brato Chakrabarti +3
Recent experiments have shown that the nematode {\it T. aceti} can assemble into collectively undulating groups at the edge of fluid drops. This coordinated state consists of metac…
Self-organized flows in phase-synchronizing active fluids
Brato Chakrabarti, Michael J. Shelley, Sebastian Fürthauer
Many active biological particles, such as swimming microorganisms or motor-proteins, do work on their environment by going though a periodic sequence of shapes. Interactions betwee…
Dynamics of flexible filaments in oscillatory shear flows
Francesco Bonacci, Brato Chakrabarti, David Saintillan +2
The fluid-structure interactions between flexible fibers and viscous flows play an essential role in various biological phenomena, medical problems, and industrial processes. Of pa…
A multiscale biophysical model gives quantized metachronal waves in a lattice of cilia
Brato Chakrabarti, Sebastian Fürthauer, Michael J. Shelley
Motile cilia are slender, hair-like cellular appendages that spontaneously oscillate under the action of internal molecular motors and are typically found in dense arrays. These ac…
Signatures of elastoviscous buckling in the dilute rheology of stiff polymers
Brato Chakrabarti, Yanan Liu, Olivia du Roure +2
As a stiff polymer tumbles in shear flow, it experiences compressive viscous forces that can cause it to buckle and undergo a sequence of morphological transitions with increasing…
Trapping, gliding, vaulting: Transport of semiflexible polymers in periodic post arrays
Brato Chakrabarti, Charles Gaillard, David Saintillan
The transport of deformable particles through porous media underlies a wealth of applications ranging from filtration to oil recovery to the transport and spreading of biological a…
Flexible filaments buckle into helicoidal shapes in strong compressional flows
Brato Chakrabarti, Yanan Liu, John LaGrone +5
The occurrence of coiled or helical morphologies is common in nature, from plant roots to DNA packaging into viral capsids, as well as in applications such as oil drilling processe…
Hydrodynamic synchronization of spontaneously beating filaments
Brato Chakrabarti, David Saintillan
Using a geometric feedback model of the flagellar axoneme accounting for dynein motor kinetics, we study elastohydrodynamic phase synchronization in a pair of spontaneously beating…
Transport and dispersion of active particles in periodic porous media
Roberto Alonso-Matilla, Brato Chakrabarti, David Saintillan
The transport of self-propelled particles such as bacteria and phoretic swimmers through crowded heterogeneous environments is relevant to many natural and engineering processes, f…
Morphological transitions of elastic filaments in shear flow
Yanan Liu, Brato Chakrabarti, David Saintillan +2
The morphological dynamics, instabilities and transitions of elastic filaments in viscous flows underlie a wealth of biophysical processes from flagellar propulsion to intracellula…
Catenaries in viscous fluid
Brato Chakrabarti, J. A. Hanna
This work explores a simple model of a slender, flexible structure in a uniform flow, providing analytical solutions for the translating, axially flowing equilibria of strings subj…