Issue 6, 2010

Surface micropatterning technique for surface-enhanced Raman scattering analysis

Abstract

A facile and powerful method to form micropatterns, based on nanosphere lithography and layer-by-layer self-assembly, is described in this paper. A monolayer of hexagon close-packed polystyrene (PS) spheres (av 600 nm) was employed as the template. A positively charged polyelectrolyte of poly(diallydimethylammonium) chloride was used as adhesive to absorb oppositely charged spherical Au (av 17 nm) and spherical Ag (av 12 nm), respectively. Both the PS and substrates were coated by colloidal nanoparticles. After removal of the PS template, a micropatterning surface was obtained. Scanning electron microscopy and atomic force microscopy were used to characterize the morphologies. These resulting patterns can be used as good surface-enhanced Raman scattering (SERS) substrates. The enhancement factor is calculated to be 104 ∼ 105. This is a simple and facile technique for surface modification of metal micropatterns with SERS analytical application.

Graphical abstract: Surface micropatterning technique for surface-enhanced Raman scattering analysis

Supplementary files

Article information

Article type
Paper
Submitted
28 Jan 2010
Accepted
12 Mar 2010
First published
09 Apr 2010

Anal. Methods, 2010,2, 684-687

Surface micropatterning technique for surface-enhanced Raman scattering analysis

W. Ruan, Z. Lu, T. Zhou, B. Zhao and L. Niu, Anal. Methods, 2010, 2, 684 DOI: 10.1039/C0AY00068J

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