Effects of interaction of photosensitizer with DNA and stacked G bases on photosensitized one-electron oxidation of DNA

Article Abstract:

Three naphthalimide (NI) derivatives as the photosensitizer for the G-selective oxidation are synthesized and the mechanism of the photosynthesized one-electron oxidation of DNA by the NI derivatives is examined. The findings indicate that the charge- separation efficiency increased for the sequence of the sequential G's because of the oxidation potential of G lowered y stacking effect of the G's.

Biological Product (except Diagnostic) Manufacturing, Drugs, Deoxyribonucleic Acid, Influence, DNA, Photosensitizing compounds, Photosensitizing agents

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Ab initio modeling of the spatial electronic, and vibrational structure of Schiff base models for visual photoreceptors

Article Abstract:

The relation between the spatial ground-state structure and the electronic and vibrational spectroscopic properties of neutral and protonated 11-cis-retinal Schiff base models within the density functional theory framework are accessed. For the protonated models the calculations revealed a polaronic conjugation defect in the ground state in the Schiff base region.

Observations, Electric properties, Photoreceptors, Schiff bases, Structure

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