| Zugriffsnummer | 20495 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Conductivity of single-stranded and double-stranded deoxyribose nucleic acid under ambient conditions: the dominance of water |
| Autor(in); Institution |
Kleine-Ostmann, Thomas; 2.2, Hochfrequenz und Felder, PTB-Braunschweig; TU Braunschweig, Institut für Hochfrequenztechnik, Braunschweig, GERMANY
Jördens, C.; TU Braunschweig, Institut für Hochfrequenztechnik, Braunschweig, GERMANY
Baaske, K.; TU Braunschweig, Institut für Hochfrequenztechnik, Braunschweig, GERMANY
Weimann, Thomas; 2.4, Quantenelektronik, PTB-Braunschweig
Hrabe de Angelis, M.; GSF National Research Center for Environment and Health, Institute of Experimental Genetics, Neuherberg, GERMANY
Koch, M.; TU Braunschweig, Institut für Hochfrequenztechnik, Braunschweig, GERMANY
|
| Quelle/Jahr | Applied Physics Letters: 88 (2006), 102102-1 - 102102-3 |
| ISSN | 0003-6951 |
| DOI | |
| Verlag | Melville, NY: American Institute of Physics |
| Klassifikationscode | PACS: 87.14.Gg ; PACS: 87.15.Rn |
| Zusammenfassung | We investigate the conductivity of single-stranded and double-stranded herring deoxyribose nucleic acid (DNA) in buffer solution spotted and dried on Au nanocontacts. We find an exponential increase of the conductivity with increasing humidity that is identical for single- and double-stranded DNA within the measurement accuracy. While the small conductivity of dry DNA is comparable to that of a large band-gap semiconductor, we attribute the increase at high humidity levels to water molecules accumulated at the phosphate backbone. For high humidities we observe s-shaped current-voltage characteristics that can be well explained by the dissociation of water attached to the DNA molecules. |
Zitierung
Kleine-Ostmann, T., Jördens, C., Baaske, K., Weimann, T., Hrabe de Angelis, M., & Koch, M. (2006). Conductivity of single-stranded and double-stranded deoxyribose nucleic acid under ambient conditions: the dominance of water. Applied Physics Letters, 88, 102102-1–102102-3. https://doi.org/10.1063/1.2182027