An indium tin oxide electrode modified with gold nanorods for use in potential-controlled surface plasmon resonance studies
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 whic...
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Veröffentlicht in: | Mikrochimica acta (1966) 2013-08, Vol.180 (11-12), p.1013-1020 |
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container_title | Mikrochimica acta (1966) |
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creator | Heider, Emily C. Trieu, Khang Diaz, Victor M. Chumbimuni-Torres, Karin Y. Campiglia, Andres D. Duranceau, Steven J. |
description | 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 µm) 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.
Immobilization of gold nanorods on optically transparent ITO electrodes provides tunable surface plasmon resonance detection coupled with electrochemical potential control. These novel sensors are applied to the detection and quantification of mercury with a combined SPR-electrochemical technique |
doi_str_mv | 10.1007/s00604-013-1017-4 |
format | Article |
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Immobilization of gold nanorods on optically transparent ITO electrodes provides tunable surface plasmon resonance detection coupled with electrochemical potential control. These novel sensors are applied to the detection and quantification of mercury with a combined SPR-electrochemical technique</description><subject>Analytical Chemistry</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Electric properties</subject><subject>Electrodes</subject><subject>Gold</subject><subject>Indium</subject><subject>Indium tin oxide</subject><subject>Microengineering</subject><subject>Nanochemistry</subject><subject>Nanocomposites</subject><subject>Nanomaterials</subject><subject>Nanorods</subject><subject>Nanostructure</subject><subject>Nanotechnology</subject><subject>Original Paper</subject><subject>Plasmons</subject><issn>0026-3672</issn><issn>1436-5073</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNp9kU2P1SAUhhujidfRH-COuHLT8fBR2i5vJn4lk7jRNUF6uMOEwhVo1PjnPU1dGxacHJ7nBHi77jWHWw4wvqsAGlQPXPYc-NirJ92JK6n7AUb5tDsBCN1LPYrn3YtaH4EYLdSp-3NOLKQlbCtrIbH8KyzIMKJrJVO15iX4gAv7GdoDu-S4sGRTprPKfC5sq0g6u-aGqQUbe5cTmTGSUrfirUN2jbauObGCNZNMndq2JWB92T3zNlZ89W-_6b59eP_17lN__-Xj57vzfe_kNLZ-BD6DVIpLO2i7zFoj-hmssMp67f0kBBVeSKEnZ-dpFssIEufvCnYc5E335pibawumutDQPdBFE73ScD4oPgwEvT2ga8k_NqzNrKE6jNEmzFs1XI98ADlOM6G3B3qxEU1IPrdiHa0F10Bz0Qfqn3de81koEvghuJJrLejNtYTVlt-Gg9njM0d8huIze3xmd8ThVGLTBYt5zFtJ9E__kf4CV2qeDQ</recordid><startdate>20130801</startdate><enddate>20130801</enddate><creator>Heider, Emily C.</creator><creator>Trieu, Khang</creator><creator>Diaz, Victor M.</creator><creator>Chumbimuni-Torres, Karin Y.</creator><creator>Campiglia, Andres D.</creator><creator>Duranceau, Steven J.</creator><general>Springer Vienna</general><general>Springer</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>20130801</creationdate><title>An indium tin oxide electrode modified with gold nanorods for use in potential-controlled surface plasmon resonance studies</title><author>Heider, Emily C. ; Trieu, Khang ; Diaz, Victor M. ; Chumbimuni-Torres, Karin Y. ; Campiglia, Andres D. ; Duranceau, Steven J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c387t-7019034413a56ad966eef90a2a4af6ff8224aff23268ca9892d703e9b406ad903</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Analytical Chemistry</topic><topic>Characterization and Evaluation of Materials</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Electric properties</topic><topic>Electrodes</topic><topic>Gold</topic><topic>Indium</topic><topic>Indium tin oxide</topic><topic>Microengineering</topic><topic>Nanochemistry</topic><topic>Nanocomposites</topic><topic>Nanomaterials</topic><topic>Nanorods</topic><topic>Nanostructure</topic><topic>Nanotechnology</topic><topic>Original Paper</topic><topic>Plasmons</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Heider, Emily C.</creatorcontrib><creatorcontrib>Trieu, Khang</creatorcontrib><creatorcontrib>Diaz, Victor M.</creatorcontrib><creatorcontrib>Chumbimuni-Torres, Karin Y.</creatorcontrib><creatorcontrib>Campiglia, Andres D.</creatorcontrib><creatorcontrib>Duranceau, Steven J.</creatorcontrib><creatorcontrib>Subsurface Biogeochemical Research (SBR)</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>Mikrochimica acta (1966)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Heider, Emily C.</au><au>Trieu, Khang</au><au>Diaz, Victor M.</au><au>Chumbimuni-Torres, Karin Y.</au><au>Campiglia, Andres D.</au><au>Duranceau, Steven J.</au><aucorp>Subsurface Biogeochemical Research (SBR)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>An indium tin oxide electrode modified with gold nanorods for use in potential-controlled surface plasmon resonance studies</atitle><jtitle>Mikrochimica acta (1966)</jtitle><stitle>Microchim Acta</stitle><date>2013-08-01</date><risdate>2013</risdate><volume>180</volume><issue>11-12</issue><spage>1013</spage><epage>1020</epage><pages>1013-1020</pages><issn>0026-3672</issn><eissn>1436-5073</eissn><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 µm) 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.
Immobilization of gold nanorods on optically transparent ITO electrodes provides tunable surface plasmon resonance detection coupled with electrochemical potential control. These novel sensors are applied to the detection and quantification of mercury with a combined SPR-electrochemical technique</abstract><cop>Vienna</cop><pub>Springer Vienna</pub><doi>10.1007/s00604-013-1017-4</doi><tpages>8</tpages></addata></record> |
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subjects | Analytical Chemistry Characterization and Evaluation of Materials Chemistry Chemistry and Materials Science Electric properties Electrodes Gold Indium Indium tin oxide Microengineering Nanochemistry Nanocomposites Nanomaterials Nanorods Nanostructure Nanotechnology Original Paper Plasmons |
title | An indium tin oxide electrode modified with gold nanorods for use in potential-controlled surface plasmon resonance studies |
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