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.
Original language | English |
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Pages (from-to) | 92-102 |
Number of pages | 11 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 4876 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2002 |
Externally published | Yes |
Event | Opto-Ireland 2002: Optics and Photonics Technologies and Applications - Galway, Ireland Duration: 5 Sept 2002 → 6 Sept 2002 |
Keywords
- DNA complexes
- Electron transfer
- Metal complexes
- Transient absorption
- Ultrafast
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering