First-principles simulations of biological molecules subjected to ionizing radiation

KA Omar, K Hasnaoui… - Annual Review of Physical …, 2021 - annualreviews.org
Ionizing rays cause damage to genomes, proteins, and signaling pathways that normally
regulate cell activity, with harmful consequences such as accelerated aging, tumors, and …

Time-resolved radiation chemistry: femtosecond photoelectron spectroscopy of electron attachment and photodissociation dynamics in iodide–nucleobase clusters

A Kunin, DM Neumark - Physical Chemistry Chemical Physics, 2019 - pubs.rsc.org
Iodide–nucleobase (I−· N) clusters studied by time-resolved photoelectron spectroscopy
(TRPES) are an opportune model system for examining radiative damage of DNA induced …

Electron attachment to microhydrated deoxycytidine monophosphate

J Kočišek, B Sedmidubská, S Indrajith… - The Journal of …, 2018 - ACS Publications
DNA constituents are effectively decomposed via dissociative electron attachment (DEA).
However, the DEA contribution to radiation damage in living tissues is a subject of ongoing …

Strand breaks induced by very low energy electrons: Product analysis and mechanistic insight into the reaction with TpT

G Khorsandgolchin, L Sanche, P Cloutier… - Journal of the …, 2019 - ACS Publications
Numerous experimental studies show that 5–15 eV electrons induce strand breaks in DNA
at energies below the ionization threshold of DNA components. In this energy range, DNA …

[HTML][HTML] Photodissociation dynamics of the iodide-uracil (I− U) complex

WL Li, A Kunin, E Matthews, N Yoshikawa… - The Journal of …, 2016 - pubs.aip.org
Photofragment action spectroscopy and femtosecond time-resolved photoelectron imaging
are utilized to probe the dissociation channels in iodide-uracil (I−⋅ U) binary clusters upon …

[HTML][HTML] Dynamics of dipole-and valence bound anions in iodide-adenine binary complexes: A time-resolved photoelectron imaging and quantum mechanical …

AB Stephansen, SB King, Y Yokoi… - The Journal of …, 2015 - pubs.aip.org
Dipole bound (DB) and valence bound (VB) anions of binary iodide-adenine complexes
have been studied using one-color and time-resolved photoelectron imaging at excitation …

The cage effect of electron beam irradiation damage in cryo-electron microscopy

Y Li, DD Kang, JY Dai, LW Wang - npj Computational Materials, 2024 - nature.com
Electron beam irradiation can cause damage to biological and organic samples, as
determined via transmission electron microscopy (TEM). Cryo-electron microscopy (cryo …

Investigating the mapping of chromophore excitations onto the electron detachment spectrum: photodissociation spectroscopy of iodide ion–thiouracil clusters

KO Uleanya, CEH Dessent - Physical Chemistry Chemical Physics, 2021 - pubs.rsc.org
Laser photodissociation spectroscopy (3.1–5.7 eV) has been applied to iodide complexes of
the non-native nucleobases, 2-thiouracil (2-TU), 4-thiouracil (4-TU) and 2, 4-thiouracil (2, 4 …

[HTML][HTML] Dynamics of electron attachment and photodissociation in iodide-uracil-water clusters via time-resolved photoelectron imaging

A Kunin, WL Li, DM Neumark - The Journal of Chemical Physics, 2018 - pubs.aip.org
The dynamics of low energy electron attachment to monohydrated uracil are investigated
using time-resolved photoelectron imaging to excite and probe iodide-uracil-water (I−· U· H …

[HTML][HTML] Electron accommodation dynamics in the DNA base thymine

SB King, AB Stephansen, Y Yokoi… - The Journal of …, 2015 - pubs.aip.org
The dynamics of electron attachment to the DNA base thymine are investigated using
femtosecond time-resolved photoelectron imaging of the gas phase iodide-thymine (I− T) …