Relaxational dynamics in dry and humid DNA

H. Grimm, A. P. Sokolov, A. J. Dianoux

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The influence of hydration on the self-correlation of DNA-hydrogens has been measured by using inelastic neutron scattering. The range of GHz to THz could be covered by combining back-scattering and time-of-flight data for long incident wavelength. The direct spectral response of water is masked by using D2O. Similar to other hydrated biopolymers, a steep increase of the susceptibility at low frequencies indicates a dynamic transition at T ≊ 200 K. The difference for dry and humid DNA shows that the water molecules cause this transition.

Original languageEnglish
Pages (from-to)S1248-S1250
JournalApplied Physics A: Materials Science and Processing
Volume74
Issue numberSUPPL.II
DOIs
StatePublished - Dec 2002
Externally publishedYes

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