The University of Southampton
University of Southampton Institutional Repository

Integrated optical surface plasmon resonance for electrochemically addressed layers

Integrated optical surface plasmon resonance for electrochemically addressed layers
Integrated optical surface plasmon resonance for electrochemically addressed layers
This thesis reports on the development of the first integrated optical surface plasmon resonance sensor that combines an optical and electrochemical interrogating technique in sensing electrochemically addressed layers over a gold film. This device brings together the advantages of the analytical technique of surface plasmon resonance and of cyclic voltammetry on a single chip that exhibits portability, miniaturisation capability and compatibility with optical fibre. The integrated optical chip allows the potential introduction of a large number of sensing pads on a single chip thus allowing the acquisition of precise information about a test compound while simultaneously monitoring different test compounds in the same sensing area. The integrated optical surface plasmon resonance (IOSPR) devices fabricated were applied in the study of the oxidation of gold and the removal of the oxide layer in real time. The optical response to the oxidation process was similar to those reported in the literature using ellipsometry and or reflectance spectroscopy. Here the IOSPR device performed better, giving transmittance changes of 60% in response to the formation of an oxide film. The introduction of a monolayer of copper onto the gold surface of the device via the underpotential deposition process was monitored for the first time using the surface plasmon technique. Here the response and performance of the device was compared with other reported studies in the literature, which combined an optical and electrochemical technique for similar analysis. The IOSPR device performed better with 10% change in transmittance in comparison to a change of 1% reported for reflectance measurements. Comparisons were also made with those predicted by a numerical waveguide model. The feasibility of potential applications in biological analysis was demonstrated by applying the device in analysing the adsorption and desorption of thiol and phospholipid layers onto the sensing surface of the device.
Abanulo, J.C.
a0169b5a-9faa-4f7f-bee1-674381bc4672
Abanulo, J.C.
a0169b5a-9faa-4f7f-bee1-674381bc4672
Wilkinson, James
73483cf3-d9f2-4688-9b09-1c84257884ca
Bartlett, Philip
d99446db-a59d-4f89-96eb-f64b5d8bb075

Abanulo, J.C. (2002) Integrated optical surface plasmon resonance for electrochemically addressed layers. University of Southampton, Faculty of Engineering and Applied Science, Optoelectronic Research Centre, Doctoral Thesis, 133pp.

Record type: Thesis (Doctoral)

Abstract

This thesis reports on the development of the first integrated optical surface plasmon resonance sensor that combines an optical and electrochemical interrogating technique in sensing electrochemically addressed layers over a gold film. This device brings together the advantages of the analytical technique of surface plasmon resonance and of cyclic voltammetry on a single chip that exhibits portability, miniaturisation capability and compatibility with optical fibre. The integrated optical chip allows the potential introduction of a large number of sensing pads on a single chip thus allowing the acquisition of precise information about a test compound while simultaneously monitoring different test compounds in the same sensing area. The integrated optical surface plasmon resonance (IOSPR) devices fabricated were applied in the study of the oxidation of gold and the removal of the oxide layer in real time. The optical response to the oxidation process was similar to those reported in the literature using ellipsometry and or reflectance spectroscopy. Here the IOSPR device performed better, giving transmittance changes of 60% in response to the formation of an oxide film. The introduction of a monolayer of copper onto the gold surface of the device via the underpotential deposition process was monitored for the first time using the surface plasmon technique. Here the response and performance of the device was compared with other reported studies in the literature, which combined an optical and electrochemical technique for similar analysis. The IOSPR device performed better with 10% change in transmittance in comparison to a change of 1% reported for reflectance measurements. Comparisons were also made with those predicted by a numerical waveguide model. The feasibility of potential applications in biological analysis was demonstrated by applying the device in analysing the adsorption and desorption of thiol and phospholipid layers onto the sensing surface of the device.

Text
Abanulo_2002_thesis_2779.pdf - Author's Original
Available under License University of Southampton Thesis Licence.
Download (1MB)

More information

Published date: 2002
Organisations: University of Southampton

Identifiers

Local EPrints ID: 42383
URI: http://eprints.soton.ac.uk/id/eprint/42383
PURE UUID: c08445a8-1de4-436a-a690-563f4ef59a62
ORCID for James Wilkinson: ORCID iD orcid.org/0000-0003-4712-1697
ORCID for Philip Bartlett: ORCID iD orcid.org/0000-0002-7300-6900

Catalogue record

Date deposited: 13 Dec 2006
Last modified: 16 Mar 2024 02:43

Export record

Contributors

Author: J.C. Abanulo
Thesis advisor: James Wilkinson ORCID iD
Thesis advisor: Philip Bartlett ORCID iD

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×