We study the role of cations on the stability of double stranded DNA (dsDNA) molecules. It is
known that the two strands of double stranded DNA (dsDNA) have negative charge due to …

Intracellular positive ions neutralize negative charges on the phosphates of a DNA strand,
conferring greater strength on the hydrogen bonds that connect complementary strands into …

A simple model of DNA based on two interacting polymers has been used to study the
unzipping of a double stranded DNA subjected to a periodic force. We propose a dynamical …

We investigate the melting transition of non-supercoiled circular DNA of different lengths,
employing Brownian dynamics simulations. In the absence of supercoiling, we find that …

We present a study on the role of defects on the stability of short DNA molecules. We
consider short DNA molecules (16 base pairs) and investigate the thermal as well as …

A simple coarse-grained model of DNA which includes both Watson-Crick and Hoogsteen
base pairing has been used to study the melting and unzipping of triplex DNA. Using …

Using Monte Carlo simulations, we study the hysteresis in the unzipping of double-stranded
DNA whose ends are subjected to a time-dependent periodic force with frequency (ω) and …

We study the features on the unzipping process of a modified version of the Peyrard–Bishop–
Dauxois model. We show that the inclusion of a barrier in the on-site potential allows for the …

Using Langevin dynamics simulations, we study a simple model of interacting-polymer
under a periodic force. The extension curves strongly depend on the magnitude of the …

We investigate the melting transition of non-supercoiled circular DNA of different lengths,
employing Brownian dynamics simulation. In the absence of supercoiling, we find that …