Hydration dynamics of oriented DNA films investigated by time-domain terahertz spectroscopy
| Publikationstyp: | Zeitschriftenartikel |
| URI (zitierfähiger Link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-45057 |
| Autor/innen: | Kistner, Caroline; André, Alexander; Fischer, Theo; Thoma, Arne; Janke, Christof; Bartels, Albrecht; Gisler, Thomas; Maret, Georg; Dekorsy, Thomas |
| Erscheinungsjahr: | 2007 |
| Erschienen in: | Applied Physics Letters ; 90 (2007). - 233902 |
| DOI (zitierfähiger Link): | https://dx.doi.org/10.1063/1.2743401 |
| Zusammenfassung: |
The B to A conformational transition of highly oriented DNA films due to a hydration change is observed with time-domain terahertz spectroscopy. Wet-spun films of calf thymus and salmon DNA are investigated for different film thicknesses and for different polarizations of the terahertz radiation relative to the DNA orientation. A clear polarization dependence is observed. Asynchronous optical sampling allows recording of terahertz absorption and background spectra in a few 10 s, permitting the tracking of the dehydration dynamics on a time scale of minutes. The observation of a phase transition is corroborated by Raman spectroscopy.
|
| Fachgebiet (DDC): | 530 Physik |
| Link zur Lizenz: | Nutzungsbedingungen |
| Universitätsbibliographie: | Ja |
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KISTNER, Caroline, Alexander ANDRÉ, Theo FISCHER, Arne THOMA, Christof JANKE, Albrecht BARTELS, Thomas GISLER, Georg MARET, Thomas DEKORSY, 2007. Hydration dynamics of oriented DNA films investigated by time-domain terahertz spectroscopy. In: Applied Physics Letters. 90, 233902. Available under: doi: 10.1063/1.2743401
@article{Kistner2007Hydra-4673, title={Hydration dynamics of oriented DNA films investigated by time-domain terahertz spectroscopy}, year={2007}, doi={10.1063/1.2743401}, volume={90}, journal={Applied Physics Letters}, author={Kistner, Caroline and André, Alexander and Fischer, Theo and Thoma, Arne and Janke, Christof and Bartels, Albrecht and Gisler, Thomas and Maret, Georg and Dekorsy, Thomas}, note={Article Number: 233902} }
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