title: Interlocked DNA rings. II. Physicochemical studies.
mesh_terms: D002499:Centrifugation, Density Gradient; D055598:Chemical Phenomena; D002621:Chemistry; D004247:DNA; D004492:Edetic Acid; D006863:Hydrogen-Ion Concentration; D011119:Polynucleotides
chemical_list: D011119:Polynucleotides; D004247:DNA; D004492:Edetic Acid