First observation of luminescence from tris(2,2'-bipyridine)ruthenium(II) triggered by anodic oxidation of oligodeoxyribonucleotide.
Anodic oxidation of oligodeoxyribonucleotide in an alkaline aqueous medium containing tris(2,2'-bipyridine)ruthenium(II) (Ru(bpy)3(2+)) was shown to cause luminescence around +1.3 V (vs. Ag/AgCl) with a maximal intensity at approximately 600 nm, possibly originating from Ru(bpy)3(2+) in the d-pi* triplet state. A pivotal initial stage in the light production path was postulated to be the anodic oxidation of 2-deoxyribose residue. This reaction seems to be available for the determination of sub-micromol dm(-3) levels of oligodeoxyribonucleotide.
Karatani
Hajime
H
Department of Biomolecular Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Japan. karatani@kit.ac.jp
D015082:2,2'-Dipyridyl / Q000031:analogs & derivatives* / Q000737:chemistry; D056831:Coordination Complexes; D003855:Deoxyribose / Q000737:chemistry; D004563:Electrochemistry; D004566:Electrodes; D006878:Hydroxides / Q000737:chemistry; D008163:Luminescent Measurements / Q000379:methods*; D009838:Oligodeoxyribonucleotides / Q000032:analysis / Q000737:chemistry*; D010084:Oxidation-Reduction; D017680:Potassium Compounds / Q000737:chemistry; D013936:Thymidine / Q000737:chemistry; D013938:Thymidine Monophosphate / Q000737:chemistry; D013941:Thymine / Q000737:chemistry; D017975:Ruthenium Compounds
D015082:2,2'-Dipyridyl; D056831:Coordination Complexes; D003855:Deoxyribose; D006878:Hydroxides; D009838:Oligodeoxyribonucleotides; D017680:Potassium Compounds; D013936:Thymidine; D013938:Thymidine Monophosphate; D013941:Thymine; C547232:tris(2,2-bipyridine)-ruthenium(II); D017975:Ruthenium Compounds; C029943:potassium hydroxide