Spin-Correlated Radical Pairs in Synthetic Hairpin DNA

Key species: Radical pairs generated by photo‐induced electron transfer in synthesized DNA are characterized by time‐resolved electron paramagnetic resonance (EPR) spectroscopy. Assuming the B‐form for DNA, the observed polarization patterns are reproduced taking into account the spin‐correlated rad...

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Bibliographic Details
Published in:Chemphyschem 2007-03, Vol.8 (4), p.507-509
Main Authors: Nakajima, Satoru, Akiyama, Kimio, Kawai, Kiyohiko, Takada, Tadao, Ikoma, Tadaaki, Majima, Tetsuro, Tero-Kubota, Shozo
Format: Article
Language:English
Subjects:
Analytical, structural and metabolic biochemistry
Base Pairing
Base Sequence
Biological and medical sciences
DNA
DNA - chemistry
Dna, deoxyribonucleoproteins
Electron Spin Resonance Spectroscopy
electron transfer
EPR spectroscopy
Free Radicals - chemistry
Fundamental and applied biological sciences. Psychology
Imides
Molecular Sequence Data
Naphthalenes
Nucleic Acid Conformation
Nucleic acids
nucleobases
Phenanthrolines - chemistry
radical ions
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Summary:Key species: Radical pairs generated by photo‐induced electron transfer in synthesized DNA are characterized by time‐resolved electron paramagnetic resonance (EPR) spectroscopy. Assuming the B‐form for DNA, the observed polarization patterns are reproduced taking into account the spin‐correlated radical pair mechanism of the electron spin polarization (see figure) and the charge recombination dynamics.
ISSN:1439-4235
1439-7641
DOI:10.1002/cphc.200600621