Matches in SemOpenAlex for { <https://semopenalex.org/work/W3150534021> ?p ?o ?g. }
Showing items 1 to 87 of
87
with 100 items per page.
- W3150534021 abstract "The results of experiments, which measured the damage induced by the impact of low energy electrons (LEE) on DNA under ultra-high vacuum conditions, are reviewed with emphasis on transient anion formation. The experiments are briefly described and several examples are presented from results on the yields of fragments produced as a function of the incident energy (0.1-30 eV) of the electrons. By comparing the results from experiments with different forms of the DNA molecule (i.e., from short single stranded DNA having four bases to plasmids involving ∼ 3� 000 base pairs) and theory, it is possible to determine fundamental mechanisms that are involved in the dissociation of basic DNA components, base release and the production of single, double-strand breaks and cross- links. Below 15 eV, electron resonances (i.e., the formation of transient anions) play a dominant role in the fragmentation of any bonds within DNA. These transient anions modify or fragment DNA by decaying into dissociative electronically excited states or by dissociating into a stable anion and a neutral radical. The fragments can initiate further reactions within DNA and thus cause more complex chemical damage. The incident electron wave can first diffract within the molecule before temporary localization on a basic DNA unit, but when transient anion decay by electron emission occurs, the departing electron wave can also be strongly enhanced by constructive interference within the DNA molecule. The experiments with oligonucleotides reported in this article show that the amount of damage generated by 3-15 eV electrons is dependent on base identity, base sequence and electron energy. Capture of a LEE by a DNA subunit may also be followed by electron transfer to another. Such transfers are affected by base stacking and sequence. Furthermore, the damage is strongly dependent on the topology and environment of DNA and the type of counter ion on the phosphate group. In particular, condensing H2O on a DNA induces the formation of a new type of transient anion whose parent is a H2O-DNA complex. Finally, under identical conditions, LEE were found to be three times more effective than X rays to produce strand breaks" @default.
- W3150534021 created "2021-04-13" @default.
- W3150534021 creator A5069480402 @default.
- W3150534021 date "2008-01-01" @default.
- W3150534021 modified "2023-09-27" @default.
- W3150534021 title "LOW ENERGY ELECTRON DAMAGE TO DNA" @default.
- W3150534021 cites W1545581608 @default.
- W3150534021 cites W1547657566 @default.
- W3150534021 cites W1564454403 @default.
- W3150534021 cites W1595331174 @default.
- W3150534021 cites W1983706066 @default.
- W3150534021 cites W2411543007 @default.
- W3150534021 cites W248096562 @default.
- W3150534021 cites W623756331 @default.
- W3150534021 hasPublicationYear "2008" @default.
- W3150534021 type Work @default.
- W3150534021 sameAs 3150534021 @default.
- W3150534021 citedByCount "0" @default.
- W3150534021 crossrefType "journal-article" @default.
- W3150534021 hasAuthorship W3150534021A5069480402 @default.
- W3150534021 hasConcept C102931765 @default.
- W3150534021 hasConcept C111919701 @default.
- W3150534021 hasConcept C121332964 @default.
- W3150534021 hasConcept C129312508 @default.
- W3150534021 hasConcept C145148216 @default.
- W3150534021 hasConcept C147120987 @default.
- W3150534021 hasConcept C147789679 @default.
- W3150534021 hasConcept C159467904 @default.
- W3150534021 hasConcept C178790620 @default.
- W3150534021 hasConcept C181500209 @default.
- W3150534021 hasConcept C184779094 @default.
- W3150534021 hasConcept C185581394 @default.
- W3150534021 hasConcept C185592680 @default.
- W3150534021 hasConcept C191015642 @default.
- W3150534021 hasConcept C32909587 @default.
- W3150534021 hasConcept C41008148 @default.
- W3150534021 hasConcept C41999313 @default.
- W3150534021 hasConcept C552990157 @default.
- W3150534021 hasConcept C55493867 @default.
- W3150534021 hasConcept C62520636 @default.
- W3150534021 hasConceptScore W3150534021C102931765 @default.
- W3150534021 hasConceptScore W3150534021C111919701 @default.
- W3150534021 hasConceptScore W3150534021C121332964 @default.
- W3150534021 hasConceptScore W3150534021C129312508 @default.
- W3150534021 hasConceptScore W3150534021C145148216 @default.
- W3150534021 hasConceptScore W3150534021C147120987 @default.
- W3150534021 hasConceptScore W3150534021C147789679 @default.
- W3150534021 hasConceptScore W3150534021C159467904 @default.
- W3150534021 hasConceptScore W3150534021C178790620 @default.
- W3150534021 hasConceptScore W3150534021C181500209 @default.
- W3150534021 hasConceptScore W3150534021C184779094 @default.
- W3150534021 hasConceptScore W3150534021C185581394 @default.
- W3150534021 hasConceptScore W3150534021C185592680 @default.
- W3150534021 hasConceptScore W3150534021C191015642 @default.
- W3150534021 hasConceptScore W3150534021C32909587 @default.
- W3150534021 hasConceptScore W3150534021C41008148 @default.
- W3150534021 hasConceptScore W3150534021C41999313 @default.
- W3150534021 hasConceptScore W3150534021C552990157 @default.
- W3150534021 hasConceptScore W3150534021C55493867 @default.
- W3150534021 hasConceptScore W3150534021C62520636 @default.
- W3150534021 hasLocation W31505340211 @default.
- W3150534021 hasOpenAccess W3150534021 @default.
- W3150534021 hasPrimaryLocation W31505340211 @default.
- W3150534021 hasRelatedWork W10230926 @default.
- W3150534021 hasRelatedWork W1617704023 @default.
- W3150534021 hasRelatedWork W169664260 @default.
- W3150534021 hasRelatedWork W1770579599 @default.
- W3150534021 hasRelatedWork W1995106711 @default.
- W3150534021 hasRelatedWork W2013519979 @default.
- W3150534021 hasRelatedWork W2017275641 @default.
- W3150534021 hasRelatedWork W2024073183 @default.
- W3150534021 hasRelatedWork W2031638785 @default.
- W3150534021 hasRelatedWork W2036777770 @default.
- W3150534021 hasRelatedWork W2051629191 @default.
- W3150534021 hasRelatedWork W2056416153 @default.
- W3150534021 hasRelatedWork W2064952197 @default.
- W3150534021 hasRelatedWork W2071943890 @default.
- W3150534021 hasRelatedWork W2106477565 @default.
- W3150534021 hasRelatedWork W2143877275 @default.
- W3150534021 hasRelatedWork W2332399553 @default.
- W3150534021 hasRelatedWork W2913083158 @default.
- W3150534021 hasRelatedWork W293555578 @default.
- W3150534021 hasRelatedWork W2996603463 @default.
- W3150534021 isParatext "false" @default.
- W3150534021 isRetracted "false" @default.
- W3150534021 magId "3150534021" @default.
- W3150534021 workType "article" @default.