62 citations · 212 across the 29 of their papers we have counts for
20 papers · 1 filter
Microgel Translocation Through Narrow Capillaries
Subhadip Biswas, Buddhapriya Chakrabarti
The transport of soft viscoelastic gels through confined geometries underlies critical processes in biomedical, biological, and industrial systems. Here, we examine the translocati…
Canonical Simulation Methodology to Extract Phase Boundaries of Liquid Crystalline Polymer Mixtures
William S. Fall, Hima Bindu Kolli, Biswaroop Mukherjee +1
We report a novel multi-scale simulation methodology to quantitatively predict the thermodynamic behaviour of polymer mixtures, that exhibit phases with broken orientational symmet…
Thermodynamics predicts a stable microdroplet phase in polymer-gel mixtures undergoing elastic phase separation
Subhadip Biswas, Biswaroop Mukherjee, Buddhapriya Chakrabarti
We study the thermodynamics of binary mixtures with the volume fraction of the minority component less than the amount required to form a flat interface and show that the surface t…
Wetting behaviour of a three-phase system in contact with a surface
Biswaroop Mukherjee, Buddhapriya Chakrabarti
We extend the Cahn-Landau-de Gennes mean field theory of binary mixtures to understand the wetting thermodynamics of a three phase system, that is in contact with an external surfa…
Soft macromolecular confinement
Subhadip Biswas, Buddhapriya Chakrabarti
We study equilibrium shapes and shape transformations of a confined semiflexible chain inside a soft lipid tubule using simulations and continuum theories. The deformed tubular sha…
Gelation impairs small molecule migration in polymer mixtures
Biswaroop Mukherjee, Buddhapriya Chakrabarti
Surface segregation of the low-molecular weight component in a polymeric mixture leads to degradation of industrial formulations. We report a simultaneous phase separation and surf…
Dynamic Morphologies and Stability of Droplet Interface Bilayers
Benjamin Guiselin, Jack O. Law, Buddhapriya Chakrabarti +1
We develop a theoretical framework for understanding dynamic morphologies and stability of droplet interface bilayers (DIBs), accounting for lipid kinetics in the monolayers and bi…
Optonanofluidics: Modelling fluid flow through surfactant-modified liquid tethers by laser beams
Joshua A. Bull, Alex L. Hargreaves, Colin D. Bain +1
When a surfactant-stabilised oil droplet with an ultralow interfacial tension is trapped in the focus of two laser beams and pulled apart (by moving the laser beams) a configuratio…
Elasticity dominated surface segregation of small molecules in polymer mixtures
Jaroslaw Krawczyk, Salvatore Croce, T. C. B. McLeish +1
We study the phenomenon of migration of the small molecular weight component of a binary polymer mixture to the free surface using mean field and self-consistent field theories. By…
Equilibrium of fluid membranes with tangent-plane order (TPO), elasticity of smectics with TPO, and dispiration asymmetry in smectics-C*
Jaya Kumar A., Buddhapriya Chakrabarti, Yashodhan Hatwalne
Fluid membranes endowed with tangent-plane order (TPO) such as tilt- and hexatic order afford unique soft matter systems for investigating the interplay between elasticity, shape,…
Complex Dynamics of a Model of Sheared Nematogenic Fluids
Rituparno Mandal, Buddhapriya Chakrabarti, Debarshini Chakraborti +1
Nonlinearities in constitutive equations of extended objects in shear flow lead to novel phenomena, {\it e.g.} "rheochaos" in solutions of wormlike micelles and "elastic turbulence…
Theoretical analysis for the optical deformation of emulsion droplets
David Tapp, Jonathan M. Taylor, Alex S. Lubanksy +2
We propose a theoretical framework to predict the three-dimensional shapes of optically deformed micron-sized emulsion droplets with ultra-low interfacial tension. The resulting sh…
Dynamic response of open cell dry foams
Buddhapriya Chakrabarti, Peter J. Hine, B. M. A. G. Piette
We study the mechanical response of an open cell dry foam subjected to periodic forcing using experiments and theory. Using the measurements of the static and dynamic stress-strain…
Equilibrium morphologies and force extension behavior for polymers with hydrophobic patches: Role of quenched disorder
Ankur Mishra, Ajay S. Panwar, Buddhapriya Chakrabarti
Motivated by single molecule experiments on biopolymers we explore equilibrium morphologies and force-extension behavior of copolymers with hydrophobic segments using Langevin dyna…
Counterion desorption and globule-coil transition of a polyelectrolyte under tension
Ajay S. Panwar, Mark A. Kelly, Buddhapriya Chakrabarti +1
We explore the mechanical response of a single polyelectrolyte chain under tension in good and poor solvents using a combination of simulation and theory. In poor solvents, where t…
Shear Unzipping of DNA
Buddhapriya Chakrabarti, David R. Nelson
We study theoretically the mechanical failure of a simple model of double stranded DNA under an applied shear. Starting from a more microscopic Hamiltonian that describes a sheared…
Escape configuration lattice near the nematic-isotropic transition: Tilt analogue of blue phases
Buddhapriya Chakrabarti, Yashodhan Hatwalne, N. V. Madhusudana
We predict the possible existence of a new phase of liquid crystals near the nematic-isotropic () transition. This phase is an achiral, tilt-analogue of the blue phase and is…
The nonlinear elasticity of an -helical polypeptide: Monte Carlo studies
Buddhapriya Chakrabarti, Alex J. Levine
We perform Monte Carlo simulations to study the elastic properties of the helix-coil worm-like chain model of alpha-helical polypeptides. In this model the secondary structure ente…
Routes to spatiotemporal chaos in the rheology of nematogenic fluids
Moumita Das, Buddhapriya Chakrabarti, Chandan Dasgupta +2
With a view to understanding the ``rheochaos'' observed in recent experiments in a variety of orientable fluids, we study numerically the equations of motion of the spatiotemporal…
Spatiotemporal rheochaos in nematic hydrodynamics
Buddhapriya Chakrabarti, Moumita Das, Chandan Dasgupta +2
Motivated by the observation of rheochaos in sheared wormlike micelles [Bandyopadhyay et al., Phys. Rev. Lett, 84 2022, (2000); Europhys. Lett. 56, 447 (2001); Pramana 53, 223 (199…