Peptides adsorption on TiO2 and Au: Molecular organization investigated by NEXAFS, XPS and IR (Articolo in rivista)

Type
Label
  • Peptides adsorption on TiO2 and Au: Molecular organization investigated by NEXAFS, XPS and IR (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Iucci, G; Battocchio, C; Dettin, M; Gambaretto, R; Di Bello, C; Borgatti, F; Carravetta, V; Monti, S; Polzonetti, G (2007)
    Peptides adsorption on TiO2 and Au: Molecular organization investigated by NEXAFS, XPS and IR
    in Surface science
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Iucci, G; Battocchio, C; Dettin, M; Gambaretto, R; Di Bello, C; Borgatti, F; Carravetta, V; Monti, S; Polzonetti, G (literal)
Pagina inizio
  • 3843 (literal)
Pagina fine
  • 3849 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 601 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Roma Tre, Dept Phys, I-00146 Rome, Italy; Univ Padua, Dept Chem Proc Engn, I-35131 Padua, Italy; CNR, TASC, I-34012 Trieste, Italy; CNR, IPCF, I-56124 Pisa, Italy (literal)
Titolo
  • Peptides adsorption on TiO2 and Au: Molecular organization investigated by NEXAFS, XPS and IR (literal)
Abstract
  • We present a spectroscopic study of the structure of two peptides deposited on Au and TiO2: PeptA, (EAK16-RGD) bringing the adhesive RGD sequence linked to EAK16; PeptB, having RGD linked to a \"scrambled\" sequence of the EAK16 peptide. Previously reported NEXAFS investigations on thin films of the self-assembling peptide EAK16 deposited on Au and TiO2, revealed molecular order and orientation for both substrates. IR spectra show a beta-sheet conformation for PeptA and a random structure for PeptB. Angular-dependent NEXAFS measurements reveal an ordered structure with preferential molecular orientation only for PeptA. XPS analysis indicates that PeptA is adsorbed on TiO2 in a larger amount than PeptB. (literal)
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