112 citations · 159 across the 6 of their papers we have counts for
6 papers
Translocation frequency of double-stranded DNA through a solid-state nanopore
Nicholas A. W. Bell, Murugappan Muthukumar, Ulrich F. Keyser
Solid-state nanopores are single molecule sensors that measure changes in ionic current as charged polymers such as DNA pass through. Here, we present comprehensive experiments on…
Effective charge, collapse and the critical point of a polyelectrolyte chain
Arindam Kundagrami, M. Muthukumar
The charge of a polyelectrolyte (PE) controls myriads of phenomena in biology, biotechnology, and materials science, but still remains elusive from an understanding. Considering th…
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…
The collapse of linear polyelectrolyte chains in a poor solvent: When does a collapsing polyelectrolyte collect its counter ions?
Peter Loh, G. Roshan Deen, Doris Vollmer +4
In order to better understand the collapse of polyions in poor solvent conditions the effective charge and the solvent quality of the hypothetically uncharged polymer backbone need…
Microphase separation in polyelectrolytic diblock copolymer melt : weak segregation limit
Rajeev Kumar, M. Muthukumar
We present a generalized theory of microphase separation for charged-neutral diblock copolymer melt. Stability limit of the disordered phase for salt-free melt has been calculated…
Periodic Pattern Formation in Evaporating Drops
Vladimir A. Belyi, D. Kaya, M. Muthukumar
Solute deposits from evaporating drops with pinned contact line are usually concentrated near the contact line. The stain, or pattern, left on the substrate then consists of a sing…