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Proceedings Paper

Ultrafast transient absorption studies of ruthenium and rhenium dipyridophenazine complexes bound to DNA and polynucleotides
Author(s): Caitriona M. Creely; John M. Kelly; M. M. Feeney; S. Hudson; J. C. Penedo; Werner J. Blau; B. Elias; Andree Kirsch-De Mesmaeker; P. Matousek; M. Towrie; A. W. Parker; J. S. Dyer; Mikhael W. George; C. G. Coates; John J. McGarvey
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Paper 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.

Paper Details

Date Published: 27 August 2003
PDF: 11 pages
Proc. SPIE 4876, Opto-Ireland 2002: Optics and Photonics Technologies and Applications, (27 August 2003); doi: 10.1117/12.463625
Show Author Affiliations
Caitriona M. Creely, Trinity College Dublin (Ireland)
John M. Kelly, Trinity College Dublin (Ireland)
M. M. Feeney, Trinity College Dublin (Ireland)
S. Hudson, Trinity College Dublin (Ireland)
J. C. Penedo, Trinity College Dublin (Ireland)
Werner J. Blau, Trinity College Dublin (Ireland)
B. Elias, Univ. Libre de Bruxelles (Belgium)
Andree Kirsch-De Mesmaeker, Univ. Libre de Bruxelles (Belgium)
P. Matousek, Rutherford Appleton Lab. (United Kingdom)
M. Towrie, Rutherford Appleton Lab. (United Kingdom)
A. W. Parker, Rutherford Appleton Lab. (United Kingdom)
J. S. Dyer, Univ. of Nottingham (United Kingdom)
Mikhael W. George, Univ. of Nottingham (United Kingdom)
C. G. Coates, Queen's Univ. of Belfast (United Kingdom)
John J. McGarvey, Queen's Univ. of Belfast (United Kingdom)

Published in SPIE Proceedings Vol. 4876:
Opto-Ireland 2002: Optics and Photonics Technologies and Applications
Vincent Toal; Norman Douglas McMillan; Gerard M. O'Connor; Eon O'Mongain; Austin F. Duke; John F. Donegan; James A. McLaughlin; Brian D. MacCraith; Werner J. Blau, Editor(s)

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