Diffraction in low-energy electron scattering from DNA: Bridging gas-phase and solid-state theory

被引:23
作者
Caron, Laurent [1 ,5 ]
Sanche, Leon [1 ]
Tonzani, Stefano [2 ]
Greene, Chris H. [3 ,4 ]
机构
[1] Univ Sherbrooke, Fac Med, Grp Rech Sci Radiat, Sherbrooke, PQ J1H 5N4, Canada
[2] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA
[3] Univ Colorado, Dept Phys, Boulder, CO 80309 USA
[4] Univ Colorado, JILA, Boulder, CO 80309 USA
[5] Univ Sherbrooke, Dept Phys & Regroupement Quebecois Mat Pointe, Sherbrooke, PQ J1H 5N4, Canada
基金
加拿大健康研究院;
关键词
D O I
10.1103/PhysRevA.78.042710
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Using high-quality gas phase electron scattering calculations and multiple scattering theory, we attempt to gain insights into the radiation damage to DNA induced by secondary low-energy electrons in the condensed phase, and to bridge the existing gap with the gas phase theory and experiments. The origin of different resonant features (arising from single molecules or diffraction) is discussed and the calculations are compared to existing experiments in thin films.
引用
收藏
页数:13
相关论文
共 81 条
[1]   Fragmentation of short single DNA strands by 1-30 eV electrons: dependence on base identity and sequence [J].
Abdoul-Carime, H ;
Sanche, L .
INTERNATIONAL JOURNAL OF RADIATION BIOLOGY, 2002, 78 (02) :89-99
[2]  
*ADV CHEM DEV INC, 2006, VAL OBST ACD CHEMSKE
[3]   Electron attachment energies of the DNA bases [J].
Aflatooni, K ;
Gallup, GA ;
Burrow, PD .
JOURNAL OF PHYSICAL CHEMISTRY A, 1998, 102 (31) :6205-6207
[5]  
[Anonymous], METHODS COMPUT PHYS
[6]   Multichannel Rydberg spectroscopy of complex atoms [J].
Aymar, M ;
Greene, CH ;
LucKoenig, E .
REVIEWS OF MODERN PHYSICS, 1996, 68 (04) :1015-1123
[7]   Mechanism for damage to DNA by low-energy electrons [J].
Barrios, R ;
Skurski, P ;
Simons, J .
JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (33) :7991-7994
[8]   ELECTRICAL-PROPERTIES OF NUCLEIC-ACID BASES [J].
BASCH, H ;
GARMER, DR ;
JASIEN, PG ;
KRAUSS, M ;
STEVENS, WJ .
CHEMICAL PHYSICS LETTERS, 1989, 163 (06) :514-522
[9]   Absolute and effective cross-sections for low-energy electron-scattering processes within condensed matter [J].
Bass, AD ;
Sanche, L .
RADIATION AND ENVIRONMENTAL BIOPHYSICS, 1998, 37 (04) :243-257
[10]   Damage to model DNA fragments from very low-energy (<1 eV) electrons [J].
Berdys, J ;
Anusiewicz, I ;
Skurski, P ;
Simons, J .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (20) :6441-6447