Counterion effects on the structure and dynamics of solid DNA

T. Weidlich, Stuart Lindsay, A. Rupprecht

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

We have measured the counterion species and concentration dependence of the low-frequency Raman spectrum, speed of sound, and the A-B transition in solid DNA. We find that both the frequency of the lowest Raman active mode, and the water content at the A-B phase transition depend strongly on ion size and concentration. Longitudinal elastic constants show only a small dependence. These results indicate that ion-mediated interhelical forces control several important properties of solid DNA.

Original languageEnglish (US)
Pages (from-to)1674-1677
Number of pages4
JournalPhysical Review Letters
Volume61
Issue number14
DOIs
StatePublished - 1988

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deoxyribonucleic acid
moisture content
ions
elastic properties
Raman spectra
low frequencies
acoustics

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Counterion effects on the structure and dynamics of solid DNA. / Weidlich, T.; Lindsay, Stuart; Rupprecht, A.

In: Physical Review Letters, Vol. 61, No. 14, 1988, p. 1674-1677.

Research output: Contribution to journalArticle

Weidlich, T. ; Lindsay, Stuart ; Rupprecht, A. / Counterion effects on the structure and dynamics of solid DNA. In: Physical Review Letters. 1988 ; Vol. 61, No. 14. pp. 1674-1677.
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