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Titolo:
X-ray absorption near-edge structure (XANES) spectral changes of 2-deoxy-D-ribose by irradiation within the energy region around the oxygen K-shell absorption edge
Autore:
Akamatsu, K; Yokoya, A;
Indirizzi:
Japan Atom Energy Res Inst, SPring 8, Mikazuki, Hyogo 6795148, Japan JapanAtom Energy Res Inst Mikazuki Hyogo Japan 6795148 go 6795148, Japan
Titolo Testata:
JOURNAL OF SYNCHROTRON RADIATION
, volume: 8, anno: 2001,
parte:, 2
pagine: 1001 - 1002
SICI:
0909-0495(200103)8:<1001:XANS(S>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
STRAND SCISSION; ION-CHAMBER; PHOSPHORUS; DNA;
Keywords:
XANES; 2-deoxy-D-ribose; chemical change;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Akamatsu, K Japan Atom Energy Res Inst, SPring 8, 1-1-1 Kohto, Mikazuki, Hyogo 6795148, Japan Japan Atom Energy Res Inst 1-1-1 Kohto Mikazuki Hyogo Japan 6795148
Citazione:
K. Akamatsu e A. Yokoya, "X-ray absorption near-edge structure (XANES) spectral changes of 2-deoxy-D-ribose by irradiation within the energy region around the oxygen K-shell absorption edge", J SYNCHROTR, 8, 2001, pp. 1001-1002

Abstract

The physicochemical characteristics of 2-deoxy-D-ribose moieties in DNA strands are important to understand biological radiation stress. So, the X-ray absorption near edge structure (XANES) of 2-deoxy-D-ribose within the energy region around the oxygen K-shell absorption edge was measured. 2-deoxy-D-ribose was exposed to 3 energies of X-rays, i.e., 526.3 eV (below O 1s-->pi*), 537.8 eV (at the absorption peak of O 1s-->sigma*) and 552.6 eV (above O 1s-->sigma*) for given periods. Slight differences in spectral changes were seen in the each irradiation energy, suggesting in fact that the chemical state and following rearranged chemical structure of 2-deoxy-D-ribose may be different between the 3 irradiation energies.

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Documento generato il 01/10/20 alle ore 01:04:19