Probing Photoelectrochemical Processes in Au−CdS Nanoparticle Arrays by Surface Plasmon Resonance: Application for the Detection of Acetylcholine Esterase Inhibitors
The photoelectrochemical charging of Au-nanoparticles (NP) in a Au-nanoparticle/CdS-nanoparticle array assembled on a Au-coated glass surface is followed by means of surface plasmon resonance (SPR) spectroscopy upon continuous irradiation of the sample. The charging of the Au-NPs results in the enha...
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| Veröffentlicht in: | Journal of the American Chemical Society 2003-12, Vol.125 (51), p.16006-16014 |
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| container_issue | 51 |
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| container_title | Journal of the American Chemical Society |
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| creator | Zayats, Maya Kharitonov, Andrei B Pogorelova, Svetlana P Lioubashevski, Oleg Katz, Eugenii Willner, Itamar |
| description | The photoelectrochemical charging of Au-nanoparticles (NP) in a Au-nanoparticle/CdS-nanoparticle array assembled on a Au-coated glass surface is followed by means of surface plasmon resonance (SPR) spectroscopy upon continuous irradiation of the sample. The charging of the Au-NPs results in the enhanced coupling between the localized surface plasmon of the Au-NP and the surface plasmon of the bulk surface, leading to a shift in the plasmon angle. The charging effect of the Au-NPs is supported by concomitant electrochemical experiments in the dark. Analysis of the results indicates that ca. 4.2 electrons are associated with each Au-nanoparticle under steady-state irradiation. The photoelectrochemical charging effect of the Au-NPs in the Au−CdS NP array is employed to develop a SPR sensor for acetylcholine esterase inhibitors. |
| doi_str_mv | 10.1021/ja0379215 |
| format | Article |
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The charging of the Au-NPs results in the enhanced coupling between the localized surface plasmon of the Au-NP and the surface plasmon of the bulk surface, leading to a shift in the plasmon angle. The charging effect of the Au-NPs is supported by concomitant electrochemical experiments in the dark. Analysis of the results indicates that ca. 4.2 electrons are associated with each Au-nanoparticle under steady-state irradiation. 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Am. Chem. Soc</addtitle><description>The photoelectrochemical charging of Au-nanoparticles (NP) in a Au-nanoparticle/CdS-nanoparticle array assembled on a Au-coated glass surface is followed by means of surface plasmon resonance (SPR) spectroscopy upon continuous irradiation of the sample. The charging of the Au-NPs results in the enhanced coupling between the localized surface plasmon of the Au-NP and the surface plasmon of the bulk surface, leading to a shift in the plasmon angle. The charging effect of the Au-NPs is supported by concomitant electrochemical experiments in the dark. Analysis of the results indicates that ca. 4.2 electrons are associated with each Au-nanoparticle under steady-state irradiation. The photoelectrochemical charging effect of the Au-NPs in the Au−CdS NP array is employed to develop a SPR sensor for acetylcholine esterase inhibitors.</description><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>Biosensors</subject><subject>Biotechnology</subject><subject>Cadmium Compounds - chemistry</subject><subject>Cholinesterase Inhibitors - analysis</subject><subject>Electrochemistry - methods</subject><subject>Electrophorus</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Gold - chemistry</subject><subject>Methods. Procedures. Technologies</subject><subject>Nanotechnology</subject><subject>Particle Size</subject><subject>Photochemistry - methods</subject><subject>Sulfides - chemistry</subject><subject>Surface Plasmon Resonance</subject><subject>Various methods and equipments</subject><issn>0002-7863</issn><issn>1520-5126</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNptkcFu1DAURS0EokNhwQ8gb6jEImA7cZywi2ZaKBSImLK2HOeF8ZDEwXYkZscStnwGn9UvwdWMOhtW1vM9uu_pXoSeUvKSEkZfbRVJRckov4cWlDOScMry-2hBCGGJKPL0BD3yfhvHjBX0ITqhWS5EWbIF-ls725jxK643NljoQQdn9QYGo1WPo6jBe_DYjLiab379WbZr_FGNdlIuGN0DrpxTO4-bHV7PrlMacN0rP9gRfwZvRzVqeH3z8zeupqmPnsFEpbMOhw3gFYS47_bHdrjSEHa93tjejIDPfQCnPODLcWMaE6zzj9GDTvUenhzeU_Tl4vx6-Ta5-vTmclldJSrLeEhaAcAo4SnNIRWpylMoeNMSzrKWMaZ4SShkoDOqM1FwwRghRdnwIiOt4J1KT9HZ3ndy9vsMPsjBeA19r0aws5cippdnTETwxR7UznrvoJOTM4NyO0mJvC1G3hUT2WcH07kZoD2ShyYi8PwAKB-j71xMzvgjx9MieqWRS_aciQn9uNOV-yZzkQour-u1fCfKDxf1-5VcHX2V9nJrZzfG7P5z4D8PkbPw</recordid><startdate>20031224</startdate><enddate>20031224</enddate><creator>Zayats, Maya</creator><creator>Kharitonov, Andrei B</creator><creator>Pogorelova, Svetlana P</creator><creator>Lioubashevski, Oleg</creator><creator>Katz, Eugenii</creator><creator>Willner, Itamar</creator><general>American Chemical Society</general><scope>BSCLL</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20031224</creationdate><title>Probing Photoelectrochemical Processes in Au−CdS Nanoparticle Arrays by Surface Plasmon Resonance: Application for the Detection of Acetylcholine Esterase Inhibitors</title><author>Zayats, Maya ; Kharitonov, Andrei B ; Pogorelova, Svetlana P ; Lioubashevski, Oleg ; Katz, Eugenii ; Willner, Itamar</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a445t-d7ee2105316e373a63e85bd0524d222a5901e4ec41c47857220089b5840d75fa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Animals</topic><topic>Biological and medical sciences</topic><topic>Biosensors</topic><topic>Biotechnology</topic><topic>Cadmium Compounds - chemistry</topic><topic>Cholinesterase Inhibitors - analysis</topic><topic>Electrochemistry - methods</topic><topic>Electrophorus</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Gold - chemistry</topic><topic>Methods. Procedures. Technologies</topic><topic>Nanotechnology</topic><topic>Particle Size</topic><topic>Photochemistry - methods</topic><topic>Sulfides - chemistry</topic><topic>Surface Plasmon Resonance</topic><topic>Various methods and equipments</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zayats, Maya</creatorcontrib><creatorcontrib>Kharitonov, Andrei B</creatorcontrib><creatorcontrib>Pogorelova, Svetlana P</creatorcontrib><creatorcontrib>Lioubashevski, Oleg</creatorcontrib><creatorcontrib>Katz, Eugenii</creatorcontrib><creatorcontrib>Willner, Itamar</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of the American Chemical Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zayats, Maya</au><au>Kharitonov, Andrei B</au><au>Pogorelova, Svetlana P</au><au>Lioubashevski, Oleg</au><au>Katz, Eugenii</au><au>Willner, Itamar</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Probing Photoelectrochemical Processes in Au−CdS Nanoparticle Arrays by Surface Plasmon Resonance: Application for the Detection of Acetylcholine Esterase Inhibitors</atitle><jtitle>Journal of the American Chemical Society</jtitle><addtitle>J. Am. Chem. Soc</addtitle><date>2003-12-24</date><risdate>2003</risdate><volume>125</volume><issue>51</issue><spage>16006</spage><epage>16014</epage><pages>16006-16014</pages><issn>0002-7863</issn><eissn>1520-5126</eissn><coden>JACSAT</coden><abstract>The photoelectrochemical charging of Au-nanoparticles (NP) in a Au-nanoparticle/CdS-nanoparticle array assembled on a Au-coated glass surface is followed by means of surface plasmon resonance (SPR) spectroscopy upon continuous irradiation of the sample. The charging of the Au-NPs results in the enhanced coupling between the localized surface plasmon of the Au-NP and the surface plasmon of the bulk surface, leading to a shift in the plasmon angle. The charging effect of the Au-NPs is supported by concomitant electrochemical experiments in the dark. Analysis of the results indicates that ca. 4.2 electrons are associated with each Au-nanoparticle under steady-state irradiation. The photoelectrochemical charging effect of the Au-NPs in the Au−CdS NP array is employed to develop a SPR sensor for acetylcholine esterase inhibitors.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>14677992</pmid><doi>10.1021/ja0379215</doi><tpages>9</tpages></addata></record> |
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| subjects | Animals Biological and medical sciences Biosensors Biotechnology Cadmium Compounds - chemistry Cholinesterase Inhibitors - analysis Electrochemistry - methods Electrophorus Fundamental and applied biological sciences. Psychology Gold - chemistry Methods. Procedures. Technologies Nanotechnology Particle Size Photochemistry - methods Sulfides - chemistry Surface Plasmon Resonance Various methods and equipments |
| title | Probing Photoelectrochemical Processes in Au−CdS Nanoparticle Arrays by Surface Plasmon Resonance: Application for the Detection of Acetylcholine Esterase Inhibitors |
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