Ultrafast transient absorption studies of ruthenium and rhenium dipyridophenazine complexes bound to DNA and polynucleotides
(2003) Opto-Ireland 2002: Optics and Photonics Technologies and Applications — Location: Galway, Ireland (5.September.2002)
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- Authors
- Abstract
- We report on ultrafast pump and probe studies of biological systems, in the form of polynucleotide and calf thymus DNA complexes. Molecules for study are bound to the polynucleotides and probed in the visible region to observe changes in the absorption over time. Various dipyridophenazine metal complexes are studied alone and complexed with DNA or synthetic polynucleotides to investigate changes occurring in their excited states upon interacting with nucleobases. Transient absorption measurements are performed pumping at 400nm and probing from 450-700nm with pulse duration of 400fs.
- Affiliations
University of Dublin, Trinity College (Ireland) Physics University of Dublin, Trinity College (Ireland) Chemistry Université Libre de Bruxelles (ULB) Chimie Organique et Photochimie Rutherford Appleton Laboratory (Didcot - U.K.) Central Laser Facility University of Nottingham (U.K.) Chemistry Queens University Belfast (Northern Ireland) Chemistry
Citations
Creely, C. M., Kelly, J. M., Feeney, M. M., Hudson, S., Penedo, J. C., Blau, W. J., Elias, B., Kirsch-De Mesmaeker, A., Matousek, P., Towrie, M., Parker, A. W., Dyer, J. S., George, M. W., Coates, C. G., & Mc Garvey, J. J. (2003). Ultrafast transient absorption studies of ruthenium and rhenium dipyridophenazine complexes bound to DNA and polynucleotides. SPIE - the International Society for Optical Engineering. Proceedings, 4876, 92-102. https://doi.org/10.1117/12.463625 (Original work published 2003)