Triplet-Triplet Energy Transfer in DNA: A Process that Occurs on the Nanosecond Timescale
Triplet-triplet electronic energy transfer in polyA-polyT DNA sequences was studied by using semiempirical quantum-chemical methods coupled to classical molecular-dynamics simulations. Triplet excited states in DNA were found to be almost completely localized on single nucleobases; the characteristi...
| Autores: | , |
|---|---|
| Formato: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2011 |
| País: | España |
| Recursos: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repositorio: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:2445/175477 |
| Acesso em linha: | https://hdl.handle.net/2445/175477 |
| Access Level: | acceso abierto |
| Palavra-chave: | Transferència d'energia ADN Càlculs numèrics Energy transfer DNA Numerical calculations |
| Resumo: | Triplet-triplet electronic energy transfer in polyA-polyT DNA sequences was studied by using semiempirical quantum-chemical methods coupled to classical molecular-dynamics simulations. Triplet excited states in DNA were found to be almost completely localized on single nucleobases; the characteristic time for their migration along the A-A and T-T stacks (see picture) was found to be 0.8 and 6.4 ns. |
|---|