Self-organisation of planar and tripod-shaped DNA stars confined to the water–air interface

Autor(en)

Clemens Jochum, Nataša Adžić, Emmanuel Stiakakis, Gerhard Kahl, Christos N. Likos

Abstrakt

Using molecular dynamic simulations of coarse-grained models, we study the self-organisation of star-shaped all-DNA constructs, composed of suitably intertwined single-stranded DNA chains, confined to water-air interface. Two configurations of DNA stars are considered: planar and tripod with respect to whether the entire star is fixed to an interface or only its terminating nucleotides, while the rest is allowed to dive into a water where high concentration of monovalent salt is dissolved. Calculated structural properties of the solutions they form as well as their dynamical features, investigated in a range from low- to intermediate densities, reveal that both systems stay in liquid state maintaining remarkably similar properties despite striking differences in the conformation of the composing molecules.

Organisation(en)

Computergestützte Physik und Physik der Weichen Materie

Externe Organisation(en)

Technische Universität Wien, University of Belgrade, Forschungszentrum Jülich

Journal

Molecular Physics

Anzahl der Seiten

16

ISSN

0026-8976

DOI

https://doi.org/10.1080/00268976.2025.2472020

Publikationsdatum

03-2025

Peer-reviewed

Ja

ÖFOS 2012

103043 Computational Physics, 103015 Kondensierte Materie

Schlagwörter

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/9b35e840-53a3-4520-8b45-e17ab9a3937c