The electron conductivity and photocurrent generation properties of a self-assembled monolayer (SAM) formed by a helical hexapeptide chemisorbed on an interdigitated gold microelectrode have been investigated by cyclic voltammetry and photo-electrochemical experiments. Cyclic voltammetry measurements show that the peptide forms a densely packed self-assembled monolayer on the gold surface. Peculiar photocurrent/voltage responses have been obtained for the modified electrode, indicating that a photoinduced electron transfer from excited tryptophan to gold significantly contributes to the conductive properties of the peptide SAM. (c) 2006 Elsevier B.V All rights reserved.

Self-assembled peptide monolayers on interdigitated gold microelectrodes

MARLETTA, Giovanni
2007-01-01

Abstract

The electron conductivity and photocurrent generation properties of a self-assembled monolayer (SAM) formed by a helical hexapeptide chemisorbed on an interdigitated gold microelectrode have been investigated by cyclic voltammetry and photo-electrochemical experiments. Cyclic voltammetry measurements show that the peptide forms a densely packed self-assembled monolayer on the gold surface. Peculiar photocurrent/voltage responses have been obtained for the modified electrode, indicating that a photoinduced electron transfer from excited tryptophan to gold significantly contributes to the conductive properties of the peptide SAM. (c) 2006 Elsevier B.V All rights reserved.
2007
Peptide SAM; Electrical properties; Conductivity
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11769/59212
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