270 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Indian Institute of Technology BombayIN48 papers
- Monash UniversityAU44 papers
- Australian Regenerative Medicine InstituteAU3 papers
- Canadian Institute for Advanced ResearchCA3 papers
- Max Planck Institute for Polymer ResearchDE3 papers
- University College LondonGB3 papers
- Wellcome Centre for Human NeuroimagingGB3 papers
- RMIT UniversityAU2 papers
- Swinburne University of TechnologyAU2 papers
- The University of MelbourneAU2 papers
- ARC Centre of Excellence in Advanced Molecular ImagingAU1 paper
- ARC Centre of Excellence in Future Low-Energy Electronics TechnologiesAU1 paper
18 papers · 1 filter
Linear Viscoelasticity of Semiflexible Polymers with Hydrodynamic Interactions
Amit Varakhedkar, P. Sunthar, J. Ravi Prakash
The linear viscoelastic response of single semiflexible polymer chains in the infinite-dilution limit is studied using Brownian dynamics simulations of coarse-grained bead-spring c…
How hydrodynamic interactions alter polymer stretching in turbulence
Aditya Ganesh, Dario Vincenzi, Ranganathan Prabhakar +1
Hydrodynamic interactions (HI) between segments of a polymer have long been known to strongly affect polymer stretching in laminar viscometric flows. Yet the role of HI in fluctuat…
Subdiffusion of sticky dendrimers in an associative polymer network
Silpa Mariya, Jeremy J. Barr, P. Sunthar +1
We investigate the static and dynamic properties of dendrimers diffusing through a network of linear associative polymers using coarse-grained Brownian dynamics simulations. Both d…
A mesoscopic model for the rheology of dilute and semidilute solutions of wormlike micelles
Avishek Kumar, Rico F. Tabor, P. Sunthar +1
The concept of a `persistent worm' is introduced, representing the smallest possible length of a wormlike micelle, and modelled by a bead-spring chain with sticky beads at the ends…
Universal scaling of the diffusivity of dendrimers in a semidilute solution of linear polymers
Silpa Mariya, Jeremy J. Barr, P. Sunthar +1
The static and dynamic properties of dendrimers in semidilute solutions of linear chains of comparable size are investigated using Brownian dynamics simulations. The radius of gyra…
How important are fluctuations in the treatment of internal friction in polymers?
R. Kailasham, Rajarshi Chakrabarti, J. Ravi Prakash
The Rouse model with internal friction (RIF), a widely used theoretical framework to interpret the effects of internal friction on conformational transitions in biomolecules, is sh…
Heterogeneous interactions and polymer entropy decide organization and dynamics of chromatin domains
Kiran Kumari, J. Ravi Prakash, Ranjith Padinhateeri
Chromatin is known to be organized into multiple domains of varying sizes and compaction. While these domains are often imagined as static structures, they are highly dynamic and s…
Rouse model with fluctuating internal friction
R. Kailasham, Rajarshi Chakrabarti, J. Ravi Prakash
A coarse-grained bead-spring-dashpot chain model with the dashpots representing the presence of internal friction, is solved exactly numerically, for the case of chains with more t…
Computing 3D chromatin configurations from contact probability maps by Inverse Brownian Dynamics
K. Kumari, B. Duenweg, R. Padinhateeri +1
The three-dimensional organization of chromatin, on the length scale of a few genes, is crucial in determining the functional state - accessibility and the amount of gene expressio…
Uniaxial extensional viscosity of semidilute DNA solutions
Sharadwata Pan, Duc At Nguyen, P. Sunthar +2
The extensional rheology of polymeric liquids has been extensively examined through experiments and theoretical predictions. However, a systematic study of the extensional rheology…
Wet and dry internal friction can be measured with the Jarzynski equality
R. Kailasham, Rajarshi Chakrabarti, J. Ravi Prakash
The existence of two types of internal friction wet and dry is revisited, and a simple protocol is proposed for distinguishing between the two types and extracting the appropriate…
Analysis of Profile and Morphology of Colloidal Deposits obtained from Evaporating Sessile Droplets
Laxman K. Malla, Rajneesh Bhardwaj, Adrian Neild
We experimentally investigate the profile and morphology of the ring-like deposits obtained after evaporation of a sessile water droplet containing polystyrene colloidal particles…
Universality of the collapse transition of sticky polymers
Aritra Santra, Kiran Kumari, R. Padinhateeri +2
The universality of the swelling of the radius of gyration of a homopolymer relative to its value in the state, independent of polymer-solvent chemistry, in the crossover regim…
Rheological consequences of wet and dry friction in a dumbbell model with hydrodynamic interactions and internal viscosity
R. Kailasham, Rajarshi Chakrabarti, J. Ravi Prakash
The effect of fluctuating internal viscosity and hydrodynamic interactions on a range of rheological properties of dilute polymer solutions is examined using a finitely extensible…
Linear stability of an active fluid interface
Amarender Nagilla, Ranganathan Prabhakar, Sameer Jadhav
Motivated by studies suggesting that the patterns exhibited by the collectively expanding fronts of thin cells during the closing of a wound [Mark et al., Biophys. J., 98:361-370,…
Shear thinning in dilute and semidilute solutions of polystyrene and DNA
Sharadwata Pan, Duc At Nguyen, B. Duenweg +3
The viscosity of dilute and semidilute unentangled DNA solutions, in steady simple shear flow, has been measured across a range of temperatures and concentrations. For polystyrene…
Significance of thermal fluctuations and hydrodynamic interactions in receptor-ligand mediated adhesive dynamics of a spherical particle in wall bound shear flow
K. V. Ramesh, R. Thaokar, J. Ravi Prakash +1
The dynamics of adhesion of a spherical micro-particle to a ligand-coated wall, in shear flow, is studied using a Langevin equation that accounts for thermal fluctuations, hydrodyn…
The viscosity radius in dilute polymer solutions: Universal behaviour from DNA rheology and Brownian dynamics simulations
Sharadwata Pan, D. Ahirwal, Duc At Nguyen +3
The swelling of the viscosity radius, , and the universal viscosity ratio, , have been determined experimentally for linear DNA molecules in dilute solutions with exce…