Matches in SemOpenAlex for { <https://semopenalex.org/work/W169664260> ?p ?o ?g. }
- W169664260 endingPage "575" @default.
- W169664260 startingPage "531" @default.
- W169664260 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.
- W169664260 created "2016-06-24" @default.
- W169664260 creator A5011257685 @default.
- W169664260 date "2008-01-01" @default.
- W169664260 modified "2023-09-23" @default.
- W169664260 title "Low Energy Electron Damage To DNA" @default.
- W169664260 cites W1483967120 @default.
- W169664260 cites W1564454403 @default.
- W169664260 cites W1957942196 @default.
- W169664260 cites W1963853336 @default.
- W169664260 cites W1968884052 @default.
- W169664260 cites W1970206589 @default.
- W169664260 cites W1971757383 @default.
- W169664260 cites W1972091231 @default.
- W169664260 cites W1973046375 @default.
- W169664260 cites W1973870004 @default.
- W169664260 cites W1980608495 @default.
- W169664260 cites W1981577228 @default.
- W169664260 cites W1982257339 @default.
- W169664260 cites W1984709338 @default.
- W169664260 cites W1988847233 @default.
- W169664260 cites W1990831516 @default.
- W169664260 cites W1992411715 @default.
- W169664260 cites W1996057540 @default.
- W169664260 cites W1996264144 @default.
- W169664260 cites W1997724133 @default.
- W169664260 cites W2000626345 @default.
- W169664260 cites W2006775823 @default.
- W169664260 cites W2007797552 @default.
- W169664260 cites W2008862452 @default.
- W169664260 cites W2010573706 @default.
- W169664260 cites W2010792750 @default.
- W169664260 cites W2011384823 @default.
- W169664260 cites W2011447815 @default.
- W169664260 cites W2015143074 @default.
- W169664260 cites W2015460353 @default.
- W169664260 cites W2016743851 @default.
- W169664260 cites W2018035094 @default.
- W169664260 cites W2021584170 @default.
- W169664260 cites W2021712730 @default.
- W169664260 cites W2022050794 @default.
- W169664260 cites W2023528074 @default.
- W169664260 cites W2023648767 @default.
- W169664260 cites W2024266124 @default.
- W169664260 cites W2024420950 @default.
- W169664260 cites W2024643878 @default.
- W169664260 cites W2027826252 @default.
- W169664260 cites W2028211893 @default.
- W169664260 cites W2030527978 @default.
- W169664260 cites W2031638785 @default.
- W169664260 cites W2032261370 @default.
- W169664260 cites W2036910689 @default.
- W169664260 cites W2038058650 @default.
- W169664260 cites W2039175574 @default.
- W169664260 cites W2039820565 @default.
- W169664260 cites W2043222112 @default.
- W169664260 cites W2044648937 @default.
- W169664260 cites W2045687689 @default.
- W169664260 cites W2048799730 @default.
- W169664260 cites W2049134479 @default.
- W169664260 cites W2050216692 @default.
- W169664260 cites W2054017627 @default.
- W169664260 cites W2055115132 @default.
- W169664260 cites W2059110564 @default.
- W169664260 cites W2059837433 @default.
- W169664260 cites W2061885535 @default.
- W169664260 cites W2062370238 @default.
- W169664260 cites W2063020900 @default.
- W169664260 cites W2064826971 @default.
- W169664260 cites W2066318500 @default.
- W169664260 cites W2067560183 @default.
- W169664260 cites W2071461819 @default.
- W169664260 cites W2079289918 @default.
- W169664260 cites W2082795601 @default.
- W169664260 cites W2086498142 @default.
- W169664260 cites W2092125070 @default.
- W169664260 cites W2092608672 @default.
- W169664260 cites W2093792410 @default.
- W169664260 cites W2094251891 @default.
- W169664260 cites W2094882359 @default.
- W169664260 cites W2095278317 @default.
- W169664260 cites W2096764075 @default.
- W169664260 cites W2101608919 @default.
- W169664260 cites W2101825510 @default.
- W169664260 cites W2108274015 @default.
- W169664260 cites W2118959032 @default.
- W169664260 cites W2122018949 @default.
- W169664260 cites W2142599967 @default.
- W169664260 cites W2142708686 @default.
- W169664260 cites W2149400111 @default.
- W169664260 cites W2152835519 @default.
- W169664260 cites W2167580335 @default.
- W169664260 cites W2172402518 @default.
- W169664260 cites W2178048599 @default.
- W169664260 cites W2179407576 @default.
- W169664260 cites W2188591775 @default.
- W169664260 cites W2243532029 @default.
- W169664260 cites W2316059253 @default.