Tight-binding modeling of nucleic acid sequences: Interplay between various types of order or disorder and charge transport

K Lambropoulos, C Simserides - Symmetry, 2019 - mdpi.com
This review is devoted to tight-binding (TB) modeling of nucleic acid sequences like DNA
and RNA. It addresses how various types of order (periodic, quasiperiodic, fractal) or …

Periodic, quasiperiodic, fractal, Kolakoski, and random binary polymers: Energy structure and carrier transport

K Lambropoulos, C Simserides - Physical Review E, 2019 - APS
We study periodic, quasiperiodic (Thue-Morse, Fibonacci, period doubling, Rudin-Shapiro),
fractal (Cantor, generalized Cantor), Kolakoski, and random binary sequences using a tight …

Effects of structural dynamics on charge carrier transfer in B-DNA: a combined MD and RT-TDDFT study

M Mantela, A Morphis, K Lambropoulos… - The Journal of …, 2021 - ACS Publications
Hole transfer along the axis of duplex DNA has been the focus of physical chemistry
research for decades, with implications in diverse fields, from nanotechnology to cell …

Light-driven modulation of electrical current through DNA sequences: Engineering of a molecular optical switch

S Behnia, S Fathizadeh, E Javanshour… - The Journal of Physical …, 2020 - ACS Publications
Designing a molecular switch with bistable on/off states is of particular interest in molecular
electronics. Motivated by experimental studies of molecular conductors, interplays of …

Quasi-periodic and fractal polymers: Energy structure and carrier transfer

M Mantela, K Lambropoulos, M Theodorakou… - Materials, 2019 - mdpi.com
We study the energy structure and the coherent transfer of an extra electron or hole along
aperiodic polymers made of N monomers, with fixed boundaries, using B-DNA as our …

Thermal signature of a helical molecule: Beyond nearest-neighbor electron hopping

S Sarkar, SK Maiti, D Laroze - Physical Review B, 2024 - APS
We investigate, for the first time, the thermal signature of a single-stranded helical molecule
that is described beyond usual nearest-neighbor electron hopping, by analyzing electronic …

Hole Transfer in Cumulenic and Polyynic Carbynes

C Simserides, A Morphis… - The Journal of Physical …, 2020 - ACS Publications
We study hole transfer in open cumulenic and polyynic nanowires made of N carbon atoms,
using real-time time-dependent density functional theory (RT-TDDFT) and tight-binding (TB) …

Hole Transfer in Open Carbynes

C Simserides, A Morphis, K Lambropoulos - Materials, 2020 - mdpi.com
We investigate hole transfer in open carbynes, ie, carbon atomic nanowires, using Real-
Time Time-Dependent Density Functional Theory (RT-TDDFT). The nanowire is made of N …

Local electronic structure analysis by ab initio elongation method: A benchmark using DNA block polymers

Y Orimoto, K Hisama, Y Aoki - The Journal of Chemical Physics, 2022 - pubs.aip.org
The ab initio elongation (ELG) method based on a polymerization concept is a feasible way
to perform linear-scaling electronic structure calculations for huge aperiodic molecules while …

Theoretical study on enhancement of DNA conductivity by copper modification of mismatched base pairs

H Liu, D Yang, Y Tian, Y Cheng - Journal of Physics: Conference …, 2019 - iopscience.iop.org
DNA is a potential material for nanodevices. Metallization is a promising way to improve its
conductivity. Two copper modified mismatched base pairs were designed by H-by-Cu …