Liquid-like Ordering of Negatively Charged Poly(amidoamine) (PAMAM) Dendrimers in Solution (Articolo in rivista)

Type

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

Label

• Liquid-like Ordering of Negatively Charged Poly(amidoamine) (PAMAM) Dendrimers in Solution (Articolo in rivista) (literal)

Anno

• 2009-01-01T00:00:00+01:00 (literal)

Alternative label

• Lombardo Domenico (2009)
  Liquid-like Ordering of Negatively Charged Poly(amidoamine) (PAMAM) Dendrimers in Solution
  in Langmuir
  (literal)

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

• Lombardo Domenico (literal)

Pagina inizio

• 3271 (literal)

Pagina fine

• 3275 (literal)

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

• 25 (literal)

Rivista

• Langmuir (Rivista)

Note

• ISI Web of Science (WOS) (literal)

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

• CNR-IPCF Sezione Messina (literal)

Titolo

• Liquid-like Ordering of Negatively Charged Poly(amidoamine) (PAMAM) Dendrimers in Solution (literal)

Abstract

• A structural investigation in water solution of the sodium carboxylate-terminated (generation G3.5) Tomalia-type poly(amidoamine) dendrimers has been performed by means of the small angle X-ray scattering (SAXS) technique. A long-range intermolecular interaction, revealed by the presence of sharp peaks in SAXS spectra, gives evidence of a considerable structural order in the system, even at low concentration of the dispersed phase. The experimental interdendrimer structure factor S(q) was analyzed in the framework of the Ornstein-Zernike integral equation by using the hypernetted chain approximation (HNCA) as closure relation. The effective interdendrimer interaction, modeled as a screened Coulombic plus hard-sphere repulsion potential, allows the estimation of the dendrimers' effective surface charge Zeff. The present analysis strongly supports the findings that the effective intra- and interdendrimer charge interactions, as well as the dendrimer solution environment conditions, are crucial parameters for themodulation of the degree of structural organization in solution, suitable for a number of potential applications. (literal)

Prodotto di

• Sistemi macromolecolari, polimeri e fluidi complessi (MD.P01.014.001) (Modulo)
• Institute for chemical and physical processes (IPCF) (Istituto)

Autore CNR

• DOMENICO LOMBARDO (Persona)

Incoming links:

Prodotto

• Institute for chemical and physical processes (IPCF) (Istituto)
• Sistemi macromolecolari, polimeri e fluidi complessi (MD.P01.014.001) (Modulo)

Autore CNR di

• DOMENICO LOMBARDO (Persona)

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

• Langmuir (Rivista)