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Energetic control and kinetics of hole migration in DNA

Article Abstract:

A new study investigates two distinct mechanisms for the energetic control and kinetics of hole migration in DNA. The superexchange mechanism and the charge hopping mechanism are examined.

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Electronic coupling for charge transfer and transport in DNA

Article Abstract:

Electronic matrix elements for hole transfer between adjacent nucleobases in DNA are calculated. The calculated intrastrand hole transfer matrix elements between adjacent thymines, v+(T, T)=0.16 eV, is seen to be in line with the results of the experiments.

Thymine, Electron transport

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Kinetics of multistep hole transfer in DNA by monitoring the transient absorption of the pyrene radical cation

Article Abstract:

The kinetics of hole transfer in DNA is studied by monitoring the transient absorption of the pyrene (Py) radical cation (Py(super .+)) during the pulse radiolysis of the oligodeoxynucleotides (ODNs) conjugated with Py. The results indicated that the hole transfer in DNA occurred on a microsecond time scale and was dependent upon the DNA sequences and intervening nucleobases between Gs.

Electric properties, Transients (Dynamics)

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