Eur. Phys. J. AP
Volume 12, Number 2, November 2000
|Page(s)||99 - 103|
|Published online||15 November 2000|
A study of X-ray induced disorder in oligonucleotide single crystals
Department of Physics, Indian Institute of Science Bangalore 560 012, India
2 Tokyo University of Agriculture and Technology, Tokyo, 184-8588, Japan
3 Department of Studies in Physics, University of Mysore, Mysore 570 006, India
4 Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560 064, India
Revised: 19 November 1999
Revised: 6 March 2000
Accepted: 22 September 2000
Published online: 15 November 2000
On the basis of one-dimensional paracrystalline model, we have calculated the linear disorder when oligonucleotide single crystals of DNA are irradiated by X-rays. For this purpose, the noticeable broadening of the meridional reflection at 3.2 Å was used as a marker to quantify the disorder, induced in the linear array of base pairs as one travels along the helical axis of DNA molecule.
PACS: 61.80.-x – Physical radiation effects, radiation damage / 61.80.Az – Theory and models of radiation effects / 61.80.Cb – X-ray effects
© EDP Sciences, 2000
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