One-Step Synthesis and Functionalization of Hydroxyl-Decorated Magnetite Nanoparticles (Articolo in rivista)

Type

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

Label

• One-Step Synthesis and Functionalization of Hydroxyl-Decorated Magnetite Nanoparticles (Articolo in rivista) (literal)

Anno

• 2008-01-01T00:00:00+01:00 (literal)

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

• 10.1016/j.jcis.2008.03.008 (literal)

Alternative label

• Mondini, S.; Cenedese, S.; Marinoni, G.; Molteni, G.; Santo, N.; Ponti, A. (2008)
  One-Step Synthesis and Functionalization of Hydroxyl-Decorated Magnetite Nanoparticles
  in Journal of colloid and interface science (Print)
  (literal)

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

• Mondini, S.; Cenedese, S.; Marinoni, G.; Molteni, G.; Santo, N.; Ponti, A. (literal)

Pagina inizio

• 173 (literal)

Pagina fine

• 179 (literal)

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

• 322 (literal)

Rivista

• Journal of colloid and interface science (Rivista)

Note

• ISI Web of Science (WOS) (literal)

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

• a Istituto di Scienze e Tecnologie Molecolari, Consiglio Nazionale delle Ricerche, via Golgi 19, 20133 Milano, Italy b Dipartimento di Chimica Strutturale e Stereochimica Inorganica, Università degli Studi di Milano, via Venezian 21, 20133 Milano, Italy c Dipartimento di Chimica Organica e Industriale, Università degli Studi di Milano, via Venezian 21, 20133 Milano, Italy d Centro Interdipartimentale Microscopia Avanzata, Università degli Studi di Milano, via Celoria 26, 20133 Milano, Italy e Dipartimento di Chimica Fisica ed Elettrochimica, Università degli Studi di Milano, via Golgi 19, 20133 Milano, Italy (literal)

Titolo

• One-Step Synthesis and Functionalization of Hydroxyl-Decorated Magnetite Nanoparticles (literal)

Abstract

• Magnetite nanoparticles covered by a layer of w-hydroxycarboxylic acid were synthesized in on estep by high-temperature decomposition of iron(III) w-hydroxycarboxylates in tri- and tetra-ethylene glycol. The nanoparticles were characterized by TEM, XRD, IR, XPS and NMR techniques in order to show that they comprise a crystalline magnetite core and actually bear on the outer surface terminal hydroxy groups. The latter ones are convenient \"handles\" for further functionalization as opposed to the chemically-inert aliphatic chains which cover conventionally synthesized nanoparticles. This was shown by several examples in which the hydroxy groups on the nanoparticle surface were easily transformed in other functional groups or reacted with other molecules. For instance, the hydroxyl-decorated nanoparticles were made water soluble by esterification with a PEGylated acetic acid. The reactive behavior of the surfactant monolayer was monitored by degrading the nanoparticles with aqueous acid and isolating the surfactant for NMR characterization. In general, the reactivity of the terminal hydroxyl groups on the nanoparticle surface parallels that observed in the free surfactants. The reported hydroxyl-decorated magnetite nanoparticles can be thus considered as pro-functional nanoparticles, i.e., a convenient starting material to functionalized magnetic nanoparticles. (literal)

Prodotto di

• Sistemi funzionali a nanoparticelle magnetiche (PM.P04.009.001) (Modulo)
• Institute of molecular science and technologies (ISTM) (Istituto)

Autore CNR

• ALESSANDRO PONTI (Persona)

Incoming links:

Prodotto

• Institute of molecular science and technologies (ISTM) (Istituto)
• Sistemi funzionali a nanoparticelle magnetiche (PM.P04.009.001) (Modulo)

Autore CNR di

• ALESSANDRO PONTI (Persona)

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

• Journal of colloid and interface science (Rivista)