Issue 21, 2013

Transparent, conductive, and SERS-active Au nanofiber films assembled on an amphiphilic peptide template

Abstract

The use of biological materials as templates for functional molecular assemblies is an active research field at the interface between chemistry, biology, and materials science. We demonstrate the formation of gold nanofiber films on β-sheet peptide domains assembled at the air/water interface. The gold deposition scheme employed a recently discovered chemical process involving spontaneous crystallization and reduction of water-soluble Au(SCN)41− upon anchoring to surface-displayed amine moieties. Here we show that an interlinked network of crystalline Au nanofibers is readily formed upon incubation of the Au(III) thiocyanate complex with the peptide monolayers. Intriguingly, the resultant films were optically transparent, enabled electrical conductivity, and displayed pronounced surface enhanced Raman spectroscopy (SERS) activity, making the approach a promising avenue for construction of nano-structured films exhibiting practical applications.

Graphical abstract: Transparent, conductive, and SERS-active Au nanofiber films assembled on an amphiphilic peptide template

Supplementary files

Article information

Article type
Paper
Submitted
30 Jun 2013
Accepted
23 Aug 2013
First published
27 Aug 2013

Nanoscale, 2013,5, 10487-10493

Transparent, conductive, and SERS-active Au nanofiber films assembled on an amphiphilic peptide template

T. P. Vinod, S. Zarzhitsky, A. Morag, L. Zeiri, Y. Levi-Kalisman, H. Rapaport and R. Jelinek, Nanoscale, 2013, 5, 10487 DOI: 10.1039/C3NR03348A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements