Title
An indium tin oxide electrode modified with gold nanorods for use in potential-controlled surface plasmon resonance studies
Abbreviated Journal Title
Microchim. Acta
Keywords
Gold nanorod immobilization; Potential-controlled SPR; Nanorod; electrochemical sensor; Mercury detection; NANOPARTICLE-MODIFIED ELECTRODES; ENHANCED RAMAN-SCATTERING; MODIFIED; ITO ELECTRODE; SENSOR; FABRICATION; Chemistry, Analytical
Abstract
The modification of electrodes with gold nanoparticles results in an increased electrode surface area, enhanced mass transport, and improved catalytic properties. We have extended this approach to indium tin oxide (ITO) electrodes to obtain optically transparent gold nanorod-modified electrodes which display enhanced electrochemical capabilities and have the additional advantage of showing a tunable surface plasmon resonance. The procedures for attaining high surface coverage (15 gold nanorods per square A mu m) of such electrodes were optimized, and the potential-dependent surface plasmon resonance was studied under controlled electrical potential. In an exemplary sensor application, we demonstrate the detection of mercury via potential-dependent formation of an Au-Hg amalgam.
Journal Title
Microchimica Acta
Volume
180
Issue/Number
11-12
Publication Date
1-1-2013
Document Type
Article
Language
English
First Page
1013
Last Page
1020
WOS Identifier
ISSN
0026-3672
Recommended Citation
"An indium tin oxide electrode modified with gold nanorods for use in potential-controlled surface plasmon resonance studies" (2013). Faculty Bibliography 2010s. 4097.
https://stars.library.ucf.edu/facultybib2010/4097
Comments
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