title: Role of the spacer of cationic gemini amphiphiles in the condensation of DNA.
abstract: The condensation of calf thymus DNA into the cholesteric-like psi-phase was observed by circular dichroism in liposome suspensions formulated with specific cationic gemini surfactants. The stereochemistry of the gemini spacer, the presence of specific functional groups, and the covalent link between the headgroups are fundamental issues in the condensation of DNA. Transmission electron microscopy images showed a multilamellar morphology, which corresponds with condensation.
authors.forename: Cecilia
authors.initials: C
authors.lastname: Bombelli
authors.forename: Stefano
authors.initials: S
authors.lastname: Borocci
authors.forename: Marco
authors.initials: M
authors.lastname: Diociaiuti
authors.forename: Francesca
authors.initials: F
authors.lastname: Faggioli
authors.forename: Luciano
authors.initials: L
authors.lastname: Galantini
authors.forename: Paola
authors.initials: P
authors.lastname: Luciani
authors.forename: Giovanna
authors.initials: G
authors.lastname: Mancini
authors.forename: Maria Grazia
authors.initials: MG
authors.lastname: Sacco
mesh_terms: D000818:Animals; D002412:Cations; D002417:Cattle; D002942:Circular Dichroism; D004247:DNA / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D013237:Stereoisomerism
chemical_list: D002412:Cations; D004247:DNA