One-dimensional optoelectronic nanostructures derived from the aqueous self-assembly of pi-conjugated oligopeptides

J Am Chem Soc. 2008 Oct 22;130(42):13840-1. doi: 10.1021/ja805491d. Epub 2008 Sep 25.

Abstract

The aqueous self-assembly of oligopeptide-flanked pi-conjugated molecules into discrete one-dimensional nanostructures is described. Unique to these molecules is the fact that the pi-conjugated unit has been directly embedded within the peptide backbone by way of a synthetic amino acid with pi-functionality that is compatible with standard Fmoc-based peptide synthesis. The peptide-based molecular design enforces intimate pi-pi communication within the aggregate after charge-screening and self-assembly, making these nanostructures attractive for optical or electronic applications in biological environments. The synthesis and assembly are reported along with spectroscopic and morphological characterization of the new nanomaterials.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Electronics
  • Microscopy, Atomic Force
  • Models, Molecular
  • Molecular Conformation
  • Nanostructures / chemistry*
  • Nanostructures / ultrastructure
  • Oligopeptides / chemistry*
  • Particle Size
  • Photochemistry
  • Protein Structure, Secondary
  • Water / chemistry

Substances

  • Oligopeptides
  • Water