Author/Authors :
Iucci، نويسنده , , G. and Battocchio، نويسنده , , C. and Dettin، نويسنده , , M. and Gambaretto، نويسنده , , R. and Di Bello، نويسنده , , C. and Borgatti، نويسنده , , F. and Carravetta، نويسنده , , V. and Monti، نويسنده , , S. and Polzonetti، نويسنده , , G.، نويسنده ,
Abstract :
We present a spectroscopic study of the structure of two peptides deposited on Au and TiO2:
A, (EAK16-RGD) bringing the adhesive RGD sequence linked to EAK16;
B, having RGD linked to a “scrambled” sequence of the EAK16 peptide.
usly 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.
ctra show a β-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.
