Investigation on NMR Relaxivity of Nano-Sized Cyano-Bridged Coordination Polymers (Articolo in rivista)

Type
Label
  • Investigation on NMR Relaxivity of Nano-Sized Cyano-Bridged Coordination Polymers (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/ic401710j (literal)
Alternative label
  • Perrier, Marine; Kenouche, Samir; Long, Jerome; Thangavel, Kalaivani; Larionova, Joulia; Goze-Bac, Christophe; Lascialfari, Alessandro; Mariani, Manuel; Baril, Nathalie; Guerin, Christian; Donnadieu, Bruno; Trifonov, Alexander; Guari, Yannick (2013)
    Investigation on NMR Relaxivity of Nano-Sized Cyano-Bridged Coordination Polymers
    in Inorganic chemistry
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Perrier, Marine; Kenouche, Samir; Long, Jerome; Thangavel, Kalaivani; Larionova, Joulia; Goze-Bac, Christophe; Lascialfari, Alessandro; Mariani, Manuel; Baril, Nathalie; Guerin, Christian; Donnadieu, Bruno; Trifonov, Alexander; Guari, Yannick (literal)
Pagina inizio
  • 13402 (literal)
Pagina fine
  • 13414 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 52 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 13 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 23 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • University of Montpellier II; University of Montpellier II; Univ Milan; Univ Milan; Consiglio Nazionale delle Ricerche (CNR)NANO; University of Bologna; Centre National de la Recherche Scientifique (CNRS); University of Montpellier II; Russian Academy of Sciences (literal)
Titolo
  • Investigation on NMR Relaxivity of Nano-Sized Cyano-Bridged Coordination Polymers (literal)
Abstract
  • We present the first comparative investigation of the Nuclear Magnetic Resonance (NMR) relaxivity of a series of nanosized cyano-bridged coordination networks stabilized in aqueous solution. These Ln(3+)/[Fe(CN)(6)](3-) (Ln = Gd, Tb, Y) and M2+/[Fe(CN)(6)](3-) (M = Ni, Cu, Fe) nanoparticles with sizes ranging from 1.4 to 5.5 nm are stabilized by polyethylene glycols (MW = 400 or 1000), polyethylene glycol fiinctionalized with amine groups (MW = 1500), or by N-acetyl-D-glucosamine. The evaluation of NMR relaxivity allowed estimation of the Magnetic Resonance Imaging (MRI) contrast efficiency of our systems. The results demonstrate that Gd3+/[Fe(CN)(6)](3-) nanoparticles have r(1p) and r(2p) relaxivities about four times higher than the values observed in the same conditions for the commercial Contrast Agents (CAs) ProHance or Omniscan, regardless of the stabilizing agent used, while nanoparticles of Prussian blue and its analogues M2+/[Fe(CN)(6)](3-) (M = Ni, Cu, Fe) present relatively modest values. The influence of the chemical composition of the nanoparticles, their crystal structure, spin values of lanthanide and transition metal ions, and stabilizing agent on the relaxivity values are investigated and discussed. (literal)
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