Drastic enhancement of excess electron-transfer efficiency through DNA by inserting consecutive 5-phenylethynyl-2'-deoxyuridines as a modulator.
5-(Phenylethynyl)-2'-deoxyuridine ((Ph)U) was consecutively incorporated into oligodeoxynucleotides as an electron transport modulator for regulating DNA-mediated excess electron transfer (EET). Upon photoexcitation of the ethynylpyrene chromophore, extremely high EET efficiencies through DNA containing consecutive (Ph)Us were observed using 5-bromouracil as a distal electron trap.
NEWCAT Institute, School of Engineering, Nihon University, Koriyama, Fukushima 963-8642, Japan. makikot@ao.ce.nihon-u.ac.jp
Makiko
M
Tanaka
Kazuhiro
K
Oguma
Yoshio
Y
Saito
Isao
I
Saito
D001483:Base Sequence; D004247:DNA / Q000737:chemistry* / Q000235:genetics; D003857:Deoxyuridine / Q000737:chemistry*; D004579:Electron Transport
D004247:DNA; D003857:Deoxyuridine