Calorimetric and dynamic light-scattering investigation of cationic surfactant-DNA complexes (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Calorimetric and dynamic light-scattering investigation of cationic surfactant-DNA complexes (Articolo in rivista) (literal)

Anno

• 2006-01-01T00:00:00+01:00 (literal)

Alternative label

• Marchetti, S; Onori, G; Cametti, C (2006)
  Calorimetric and dynamic light-scattering investigation of cationic surfactant-DNA complexes
  
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Marchetti, S; Onori, G; Cametti, C (literal)

Pagina inizio

• 24761 (literal)

Pagina fine

• 24765 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 110 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy; INFM, CRS SOFT, Unit Roma 1, CEMIN, Rome, Italy; Univ Perugia, Dipartimento Fis, I-06100 Perugia, Italy; Univ Florence, Dipartimento Fis, I-50019 Florence, Italy (literal)

Titolo

• Calorimetric and dynamic light-scattering investigation of cationic surfactant-DNA complexes (literal)

Abstract

• By means of combined calorimetric and dynamic light-scattering measurements, we have investigated the conformational behavior of DNA chains after thermal melting in the presence of a cationic surfactant at different concentrations, up to a surfactant-to-phosphate group molar ratio close to unity. Both the specific heat capacity, C P ex, and the hydrodynamic radius R of the DNA chains provide support for the existence of two structural arrangements with different thermal stabilities, coexisting in the bulk solution. Although a component remains an elongated unfolded DNA chain originated in the thermal denaturation, the second component, consisting of DNA-surfactant complexes, assumes a compact structure with an average size of about 80 nm, whose thermal denaturation occurs at temperatures higher than 100 degrees C. (literal)

Prodotto di

• Materia soffice: Self Assembly, Clustering, Arresto Strutturale (MD.P02.015.001) (Modulo)

Autore CNR

• GIUSEPPE ONORI (Persona)

Insieme di parole chiave

• Parole chiave di "Calorimetric and dynamic light-scattering investigation of cationic surfactant-DNA complexes" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• GIUSEPPE ONORI (Persona)

Prodotto

• Materia soffice: Self Assembly, Clustering, Arresto Strutturale (MD.P02.015.001) (Modulo)

Insieme di parole chiave di

• Parole chiave di "Calorimetric and dynamic light-scattering investigation of cationic surfactant-DNA complexes" (Insieme di parole chiave)