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- W4283267144 abstract "In this work, we report a novel strategy to construct highly efficient molecular diodes using oxidatively damaged DNA molecules. Being exposed to several endogenous and exogenous events, DNA suffers from constant oxidative damage, leading to the oxidation of guanine to 8-oxoguanine (8oxoG). Here, we study the charge migration properties of native and oxidatively damaged DNA using a multiscale multiconfigurational methodology comprising molecular dynamics, density functional theory, and kinetic Monte Carlo simulations. We perform a comprehensive study to understand the effect of different concentrations and locations of 8oxoG in a dsDNA sequence on its charge-transport properties and find tunable rectifier properties having potential applications in molecular electronics such as molecular switches and molecular rectifiers. We also discover the negative differential resistance properties of the fully oxidized Drew-Dickerson sequence. The presence of 8oxoG guanine leads to the trapping of charge, thus operating as a charge sink, which reveals how oxidized guanine saves the rest of the genome from further oxidative damage." @default.
- W4283267144 created "2022-06-23" @default.
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- W4283267144 date "2022-06-21" @default.
- W4283267144 modified "2023-09-27" @default.
- W4283267144 title "Molecular Rectifiers with a Very High Rectification Ratio Enabled by Oxidative Damage in Double-Stranded DNA" @default.
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- W4283267144 doi "https://doi.org/10.1021/acs.jpcb.2c01371" @default.
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