title: On the mechanism of dielectric relaxation in aqueous DNA solutions.
abstract: 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.
authors.affiliation: Vitreous State Laboratory, Catholic University of America, Washington, DC 20064.
authors.forename: B
authors.initials: B
authors.lastname: Saif
authors.forename: R K
authors.initials: RK
authors.lastname: Mohr
authors.forename: C J
authors.initials: CJ
authors.lastname: Montrose
authors.forename: T A
authors.initials: TA
authors.lastname: Litovitz
mesh_terms: 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
chemical_list: D012492:Salts; D012996:Solutions; D014867:Water; D004247:DNA