Issue 5, 2007
From the journal:

New Journal of Chemistry

Synthesis and characterization of peptide nanostructures chemisorbed on gold†

Joëlle Martin Boutin,a   Julie Richer,a   Mélanie Tremblay,a   Véronique Bissonettea  and  Normand Voyer*a  

* Corresponding authors

a Centre de recherche sur la fonction, la structure, et l’ingénierie des protéines, Département de chimie, Faculté des Sciences et de Génie, Université Laval, Québec, Canada

Abstract

We report the synthesis and the use of a peptide nanostructure for the preparation of modified gold nanoparticles and gold surfaces. A helical peptide bearing six crown ether side chains, known to form an artificial ion channel, was modified at its termini with biotin and a disulfide group. Using this peptide nanostructure, we were able to prepare gold nanoparticles and self-assembled monolayers on gold surfaces. FTIR and IRRAS experiments demonstrated that the peptide nanostructures retained their helical conformation when chemisorbed on a gold surface and that they are oriented with tilt angles around 55° from the surface normal. AFM studies confirmed that the peptide nanostructures formed well defined and regular surfaces with clusters having average heights of 5–6 nm, in close agreement with the size of the nanostructure.

Graphical abstract: Synthesis and characterization of peptide nanostructures chemisorbed on gold

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Article information

DOI
https://doi.org/10.1039/B617877D
Article type
Paper
Submitted
07 Dec 2006
Accepted
05 Feb 2007
First published
07 Mar 2007

New J. Chem., 2007,31, 741-747

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Synthesis and characterization of peptide nanostructures chemisorbed on gold

J. Martin Boutin, J. Richer, M. Tremblay, V. Bissonette and N. Voyer, New J. Chem., 2007, 31, 741 DOI: 10.1039/B617877D

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