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Photoinduced electron injection into DNA by N-cyclopropyl-1-aminonaphthalene

Paper ID Volume ID Publish Year Pages File Format Full-Text
28807 44093 2011 7 PDF Available
Title
Photoinduced electron injection into DNA by N-cyclopropyl-1-aminonaphthalene
Abstract

DNA containing either N-cyclopropyl-1-aminonaphthalene (cAN) or N-methyl-1-aminonaphthalene (mAN) as a photoinduced electron donor have been developed to investigate the electron injection and charge recombination processes in DNA duplex. Oxidation potentials of the photo-excited aminonaphthalenes (ANs) were estimated to be approximately −3.0 V vs. SCE, which are high enough to induce one-electron reduction of DNA bases. Photoinduced excess electron transfer in the AN-tethered DNA duplexes has been examined using gel electrophoresis, but the apparent electron-transfer efficiencies were almost the same for both of the cAN- and the mAN-tethered DNA. The marginal effect of cyclopropyl substitution on the efficiency of charge separation suggests that charge recombination in the contact radical ion pair is faster and more efficient than cyclopropane-ring opening.

Keywords
Photoinduced electron transfer; Aminonaphthalenes; Charge recombination; Radical ions; 5-Bromouracil; DNA
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Photoinduced electron injection into DNA by N-cyclopropyl-1-aminonaphthalene
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 219, Issue 1, 5 March 2011, Pages 115–121
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us