Zobrazeno 1 - 10
of 104
pro vyhledávání: '"Polson, James M."'
Autor:
Polson, James M., Kozma, Matthew
Recently, nanofluidics experiments have been used to characterize the behavior of single DNA molecules confined to narrow slits etched with arrays of nanopits. Analysis of the experimental data relies on analytical estimates of the underlying free-en
Externí odkaz:
http://arxiv.org/abs/2409.03882
Autor:
Rehel, Desiree A., Polson, James M.
Experiments using nanofluidic devices have proven effective in characterizing the physical properties of polymers confined to small cavities. Two recent studies using such methods examined the organization and dynamics of two DNA molecules in box-lik
Externí odkaz:
http://arxiv.org/abs/2212.13863
Autor:
Polson, James M., MacLennan, Roland G.
Computer simulations are used to characterize the entropic force of one or more polymers tethered to the tip of a hard conical object that interact with a nearby hard flat surface. Pruned-enriched-Rosenbluth-method (PERM) Monte Carlo simulations are
Externí odkaz:
http://arxiv.org/abs/2208.00873
Recent experiments have elucidated the physical properties of kinetoplasts, which are chain-mail-like structures found in the mitochondria of trypanosome parasites formed from catenated DNA rings. Inspired by these studies, we use Monte Carlo simulat
Externí odkaz:
http://arxiv.org/abs/2110.13111
Autor:
Polson, James M., Rehel, Desiree A.
Motivated by recent nanofluidics experiments, we use Brownian dynamics and Monte Carlo simulations to study the conformation, organization and dynamics of two polymer chains confined to a single box-like cavity. The polymers are modeled as flexible h
Externí odkaz:
http://arxiv.org/abs/2105.08564
Autor:
Polson, James M., Heckbert, David R.
Publikováno v:
Physical Review E 100, 012504 (2019)
Monte Carlo simulations are used to study the translocation of a polymer into a cavity. Modeling the polymer as a hard-sphere chain with a length up to N=601 monomers, we use a multiple-histogram method to measure the variation of the conformational
Externí odkaz:
http://arxiv.org/abs/2103.13177
Autor:
Polson, James M., Zhu, Qinxin
Publikováno v:
Phys. Rev. E 103, 012501 (2021)
Polymers confined to a narrow channel are subject to strong entropic forces that tend to drive the molecules apart. In this study, we use Monte Carlo computer simulations to study the segregation behavior of two flexible hard-sphere polymers under co
Externí odkaz:
http://arxiv.org/abs/2101.01621
Autor:
Polson, James M., Hastie, Cameron G.
Monte Carlo simulations are used to study the conformational behavior of a semiflexible polymer confined to cylindrical and conical channels. The channels are sufficiently narrow that the conditions for the Odijk regime are marginally satisfied. For
Externí odkaz:
http://arxiv.org/abs/2010.09815
Autor:
Polson, James M., McLure, Zakary R. N.
We describe a simple Monte Carlo simulation method to calculate the free-energy cost of localizing a single monomer of a polymer confined to a cavity. The localization position is chosen to be on the inside surface of the confining cavity. The method
Externí odkaz:
http://arxiv.org/abs/1906.06368
Autor:
Polson, James M.
Monte Carlo simulations are used to study the conformational properties of a folded semiflexible polymer confined to a long channel. We measure the variation in the conformational free energy with respect to the end-to-end distance of the polymer, an
Externí odkaz:
http://arxiv.org/abs/1805.12497