TY - JOUR
T1 - Counterion effects on the structure and dynamics of solid DNA
AU - Weidlich, T.
AU - Lindsay, Stuart
AU - Rupprecht, A.
PY - 1988
Y1 - 1988
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevLett.61.1674
DO - 10.1103/PhysRevLett.61.1674
M3 - Article
AN - SCOPUS:0001626751
SN - 0031-9007
VL - 61
SP - 1674
EP - 1677
JO - Physical Review Letters
JF - Physical Review Letters
IS - 14
ER -