On the mechanism of dielectric relaxation in aqueous DNA solutions.
The complex dielectric response of calf thymus DNA in aqueous saline solutions has been measured from 1 MHz to 1 GHz. The results are presented in terms of the relaxation of the incremental contributions to the permittivity and conductivity from the condensed counterions surrounding the DNA molecules. Measurements of the low-frequency conductivity of the samples also lends support to the condensed counterion interpretation.
Saif
B
B
Vitreous State Laboratory, Catholic University of America, Washington, DC 20064.
Mohr
R K
RK
Montrose
C J
CJ
Litovitz
T A
TA
D000818:Animals; D002417:Cattle; D004247:DNA / Q000737:chemistry*; D004553:Electric Conductivity; D008956:Models, Chemical; D012492:Salts; D012996:Solutions / Q000737:chemistry; D013950:Thymus Gland / Q000737:chemistry; D014867:Water / Q000737:chemistry
D012492:Salts; D012996:Solutions; D014867:Water; D004247:DNA