The rich topography of a self-assembled monolayer formed by a helical hexapeptide chemisorbed on a gold surface has been investigated by scanning tunneling microscopy under ultra high vacuum conditions (UHV–STM). STM experiments revealed a complex morphology of the peptide layer, showing nanometric-ordered domains lying on the gold surface (stripes) and a predominant phase at high local peptide concentration (holes). Diffusion of gold–peptide adsorbates on the gold surface, leading to coalescence of the hole structures at room temperature, was also detected.

Pace, G., Venanzi, M., Castrucci, P., Scarselli, M.a., DE CRESCENZI, M., Palleschi, A., et al. (2006). Static and dynamic features of a helical hexapeptide chemisorbed on a gold surface. MATERIALS SCIENCE AND ENGINEERING. C, BIOMIMETIC MATERIALS, SENSORS AND SYSTEMS, 26(5-7), 918-923 [10.1016/j.msec.2005.09.078].

Static and dynamic features of a helical hexapeptide chemisorbed on a gold surface

VENANZI, MARIANO;CASTRUCCI, PAOLA;SCARSELLI, MANUELA ANGELA;DE CRESCENZI, MAURIZIO;PALLESCHI, ANTONIO;STELLA, LORENZO;
2006-01-01

Abstract

The rich topography of a self-assembled monolayer formed by a helical hexapeptide chemisorbed on a gold surface has been investigated by scanning tunneling microscopy under ultra high vacuum conditions (UHV–STM). STM experiments revealed a complex morphology of the peptide layer, showing nanometric-ordered domains lying on the gold surface (stripes) and a predominant phase at high local peptide concentration (holes). Diffusion of gold–peptide adsorbates on the gold surface, leading to coalescence of the hole structures at room temperature, was also detected.
2006
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore CHIM/02 - CHIMICA FISICA
English
Chemisorption; Helical peptides; Scanning tunneling microscopy; Self-assembly; Surface structure and topography
Pace, G., Venanzi, M., Castrucci, P., Scarselli, M.a., DE CRESCENZI, M., Palleschi, A., et al. (2006). Static and dynamic features of a helical hexapeptide chemisorbed on a gold surface. MATERIALS SCIENCE AND ENGINEERING. C, BIOMIMETIC MATERIALS, SENSORS AND SYSTEMS, 26(5-7), 918-923 [10.1016/j.msec.2005.09.078].
Pace, G; Venanzi, M; Castrucci, P; Scarselli, Ma; DE CRESCENZI, M; Palleschi, A; Stella, L; Formaggio, F; Toniolo, C; Marletta, G
Articolo su rivista
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/134064
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