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Surface Plasmon Resonance Detection of Metal Ions: Layer-by-Layer Assembly of Polyelectrolytes Sensing Layers on a Multichannel Chip

Palumbo, Marco, Nagel, Jurgen and Petty, Michael C (2005) Surface Plasmon Resonance Detection of Metal Ions: Layer-by-Layer Assembly of Polyelectrolytes Sensing Layers on a Multichannel Chip IEEE Sensors Journal, 5 (6). pp. 1159-1164. ISSN 1530-437X

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Abstract

A single-chip multichannel surface plasmon resonance sensor (SPR) has been used to detect metal ions in aqueous solutions. The equipment was designed around a commercial light-emitting diode and a CCD camera and incorporated no moving parts. The sensing materials were based on molecular architectures of polyelectrolyte films, deposited by the layer-by-layer self-assembly technique. Two bilayer architectures, poly(ethyleneimine) (PEI)/poly(ethylene-alt-maleic acid) and PEI/poly(styrenesulfonate), were shown to produce different responses to solutions containing copper, nickel, and iron. The SPR equipment was able to measure concentrations of these metals down to levels of at least 2x10-5 M.

Item Type: Article
Additional Information: In IEEE Sensors Journal, 5, 1159- 1164. © 2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Uncontrolled Keywords: layer-by-layer (LbL), self assembly, metal-ion sensing, polyelectrolytes films, surface plasmon resonance (SPR
Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Nano-Electronics Centre
Depositing User: Mr Adam Field
Date Deposited: 27 May 2010 14:39
Last Modified: 23 Sep 2013 18:31
URI: http://epubs.surrey.ac.uk/id/eprint/1233

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