139 citations · 414 across the 12 of their papers we have counts for
12 papers
Active dynamics of charged macromolecules
Tapas Singha, Siao-Fong Li, Murugappan Muthukumar
We study the role of active coupling on the transport properties of homogeneously charged macromolecules in an infinitely dilute solution. An enzyme becomes actively bound to a seg…
Role of Non-Equilibrium Conformations on Driven Polymer Translocation
Harshwardhan H. Katkar, Murugappan Muthukumar
One of the major theoretical methods in understanding polymer translocation through a nanopore is the Fokker-Planck formalism based on the assumption of quasi-equilibrium of polyme…
Rotational relaxation time as unifying time scale for polymer and fiber drag reduction
A. M. P. Boelens, M. Muthukumar
Using hybrid Direct Numerical Simulation with Langevin dynamics, a comparison is performed between polymer and fiber stress tensors in turbulent flow. The stress tensors are found…
Enhanced phase segregation induced by dipolar interactions in polymer blends
Rajeev Kumar, Bobby G. Sumpter, M. Muthukumar
We present a generalized theory for studying phase separation in blends of polymers containing dipoles on their backbone. The theory is used to construct co-existence curves and to…
Origin of translocation barriers for polyelectrolyte chains
Rajeev Kumar, M. Muthukumar
For single-file translocations of a charged macromolecule through a narrow pore, the crucial step of arrival of an end at the pore suffers from free energy barriers, arising from c…
Counterion adsorption on flexible polyelectrolytes: comparison of theories
Rajeev Kumar, Arindam Kundagrami, M. Muthukumar
Counterion adsorption on a flexible polyelectrolyte chain in a spherical cavity is considered by taking a "permuted" charge distribution on the chain so that the "adsorbed" counter…