Gold nanoclusters protected by conformationally constrained peptides (Articolo in rivista)

Type

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

Label

• Gold nanoclusters protected by conformationally constrained peptides (Articolo in rivista) (literal)

Anno

• 2006-01-01T00:00:00+01:00 (literal)

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

• 10.1021/ja0560581 (literal)

Alternative label

• L. Fabris; S. Antonello; L. Armelao; R.L. Donkers; F. Polo; C. Toniolo; F. Maran (2006)
  Gold nanoclusters protected by conformationally constrained peptides
  in Journal of the American Chemical Society (Print)
  (literal)

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

• L. Fabris; S. Antonello; L. Armelao; R.L. Donkers; F. Polo; C. Toniolo; F. Maran (literal)

Pagina inizio

• 326 (literal)

Pagina fine

• 336 (literal)

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

• http://pubs.acs.org/doi/abs/10.1021/ja0560581 (literal)

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

• 128 (literal)

Rivista

• Journal of the American Chemical Society (Rivista)

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

• 1 (literal)

Note

• ISI Web of Science (WOS) (literal)
• Scopu (literal)

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

• 1,2,4,5,6,7 : Department of Chemistry and ICB-CNR, University of Padova, Via Marzolo 1, 35131 Padova, Italy 3 : Department of Chemistry and ISTM-CNR, University of Padova, Via Marzolo, 1, 35131 Padova, Italy (literal)

Titolo

• Gold nanoclusters protected by conformationally constrained peptides (literal)

Abstract

• The preparation and properties of a series of gold nanoclusters protected by thiolated peptides based on the alpha-aminoisobutyric acid (Aib) unit are described. The peptides were devised to form 0-3 C=(OH)-H-...-N intramolecular hydrogen bonds, as required by their 3(10)-helical structure. The monolayer-protected clusters (MPCs) were prepared, using a modified version of the two-phase Brust-Schiffrin preparation, and fully characterized with H-1 NMR spectrometry, IR and UV-vis absorption spectroscopies, transmission electron microscopy (TEM), thermogravimetric analysis (TGA), and X-ray photoelectron spectroscopy (XPS). The MPCs were obtained with core diameters in the range of 1.1 - 2.3 nm, depending on the reaction conditions. Structured peptides formed smaller clusters. The smallest MPC obtained is in agreement with the average formula Au(38)Pep(18). The results showed that the chemical integrity of the peptide is maintained upon monolayer formation and that the average number of peptide ligands per gold cluster is typically 75 - 85% the value calculated for alkanethiolate MPCs of similar sizes. The IR and NMR spectra indicated that in the monolayer the peptides are involved in both intra- and interligand C=(OH)-H-...-N hydrogen bonds. (literal)

Prodotto di

• Progettazione molecolare di nanosistemi organizzati (PM.P05.007.001) (Modulo)
• Istituto di scienze e tecnologie molecolari (ISTM) (Istituto)
• Peptidi antimicrobici e antivirali (PM.P01.013.001) (Modulo)
• Istituto di chimica biomolecolare (ICB) (Istituto)

Autore CNR

• CLAUDIO TONIOLO (Persona)
• LIDIA ARMELAO (Unità di personale interno)

Insieme di parole chiave

• Parole chiave di "Gold nanoclusters protected by conformationally constrained peptides" (Insieme di parole chiave)

Incoming links:

Prodotto

• Istituto di scienze e tecnologie molecolari (ISTM) (Istituto)
• Istituto di chimica biomolecolare (ICB) (Istituto)
• Peptidi antimicrobici e antivirali (PM.P01.013.001) (Modulo)
• Progettazione molecolare di nanosistemi organizzati (PM.P05.007.001) (Modulo)

Autore CNR di

• LIDIA ARMELAO (Unità di personale interno)
• CLAUDIO TONIOLO (Persona)

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

• Journal of the American Chemical Society (Rivista)

Insieme di parole chiave di

• Parole chiave di "Gold nanoclusters protected by conformationally constrained peptides" (Insieme di parole chiave)