scholarly journals On the accuracy of surface hopping dynamics in condensed phase non-adiabatic problems

2016 ◽  
Vol 144 (9) ◽  
pp. 094104 ◽  
Author(s):  
Hsing-Ta Chen ◽  
David R. Reichman
Keyword(s):  
Condensed Phase ◽  
Surface Hopping

COMBUSTION OF ENERGETIC MATERIALS GOVERNED BY REACTIONS IN THE CONDENSED PHASE

2010 ◽  
Vol 9 (2) ◽  
pp. 147-192 ◽  
Author(s):  
Valery P. Sinditskii ◽  
Viacheslav Yu. Egorshev ◽  
Valery V. Serushkin ◽  
Anton I. Levshenkov ◽  
Maxim V. Berezin ◽  
...  
Keyword(s):  
Condensed Phase ◽  
Energetic Materials

scholarly journals Low-Energy Electron Damage to Condensed-Phase DNA and Its Constituents

2021 ◽  
Vol 22 (15) ◽  
pp. 7879
Author(s):  
Yingxia Gao ◽  
Yi Zheng ◽  
Léon Sanche
Keyword(s):  
Condensed Phase ◽  
Genetic Material ◽  
High Energy ◽  
Dna Lesions ◽  
Low Energy ◽  
Experimental Investigations ◽  
Experimental Conditions ◽  
Strand Breaks ◽  
Sequence Of Events ◽  
Wide Range

The complex physical and chemical reactions between the large number of low-energy (0–30 eV) electrons (LEEs) released by high energy radiation interacting with genetic material can lead to the formation of various DNA lesions such as crosslinks, single strand breaks, base modifications, and cleavage, as well as double strand breaks and other cluster damages. When crosslinks and cluster damages cannot be repaired by the cell, they can cause genetic loss of information, mutations, apoptosis, and promote genomic instability. Through the efforts of many research groups in the past two decades, the study of the interaction between LEEs and DNA under different experimental conditions has unveiled some of the main mechanisms responsible for these damages. In the present review, we focus on experimental investigations in the condensed phase that range from fundamental DNA constituents to oligonucleotides, synthetic duplex DNA, and bacterial (i.e., plasmid) DNA. These targets were irradiated either with LEEs from a monoenergetic-electron or photoelectron source, as sub-monolayer, monolayer, or multilayer films and within clusters or water solutions. Each type of experiment is briefly described, and the observed DNA damages are reported, along with the proposed mechanisms. Defining the role of LEEs within the sequence of events leading to radiobiological lesions contributes to our understanding of the action of radiation on living organisms, over a wide range of initial radiation energies. Applications of the interaction of LEEs with DNA to radiotherapy are briefly summarized.

Sign in / Sign up

Export Citation Format

Share Document