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Dependence of oxygen quenching of intercalated methylene blue triplet lifetime on DNA base-pair composition

✍ Scribed by Bruce Berkoff; Mike Hogan; Jane Legrange; Robert Austin


Publisher
Wiley (John Wiley & Sons)
Year
1986
Tongue
English
Weight
511 KB
Volume
25
Category
Article
ISSN
0006-3525

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✦ Synopsis


We utilize the dynamic quenching of the triplet state of methylene blue by molecular oxygen to observe changes in the rate at which oxygen can penetrate the helix as a function of base-pair composition. The results indicate that the interior of the oligonucleotide dAdT is more accessible than dGdC to small molecules such as dioxygen.