Selective detection of extracellular glutamate in brain tissue using microelectrode arrays coated with over-oxidized polypyrrole
We describe the selective measurement of extracellular glutamate concentration in rodent brain using ceramic-based platinum microelectrode arrays (MEAs) coated with electropolymerized, over-oxidized polypyrrole (OPP) as a permselective barrier to interference from dopamine and ascorbate. OPP-coated...
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| Veröffentlicht in: | Analyst (London) 2007-11, Vol.132 (11), p.1107-1111 |
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| container_title | Analyst (London) |
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| creator | WALKER, Eric JIANJUN WANG HAMDI, Naser MONBOUQUETTE, Harold G MAIDMENT, Nigel T |
| description | We describe the selective measurement of extracellular glutamate concentration in rodent brain using ceramic-based platinum microelectrode arrays (MEAs) coated with electropolymerized, over-oxidized polypyrrole (OPP) as a permselective barrier to interference from dopamine and ascorbate. OPP-coated MEAs displayed similar sensitivity (97 +/- 9 nA microM(-1) cm(-2)) and response time (ca. 1 s) to glutamate as previously described Nafion-coated MEAs but, unlike Nafion-coated MEAs, were unresponsive to 5 microM dopamine. Such OPP-coated MEAs afforded selective detection of evoked glutamate release in the dopamine-rich striatum of the mouse brain. |
| doi_str_mv | 10.1039/b706880h |
| format | Article |
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Such OPP-coated MEAs afforded selective detection of evoked glutamate release in the dopamine-rich striatum of the mouse brain.</description><subject>Analytical chemistry</subject><subject>Animals</subject><subject>Brain Chemistry</subject><subject>Chemistry</subject><subject>Electrochemistry - methods</subject><subject>Exact sciences and technology</subject><subject>Extracellular Space - chemistry</subject><subject>Glutamates - analysis</subject><subject>Humans</subject><subject>Microelectrodes</subject><subject>Polymers</subject><subject>Pyrroles</subject><issn>0003-2654</issn><issn>1364-5528</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkUtv1DAUhS0EokNB4hcgb6jYpNixnThLVJWHVKkLYB3d2NetkRMPttN2uupPx0MHdcnmvvTdIx0dQt5ydsqZGD5OPeu0ZtfPyIaLTjZKtfo52TDGRNN2Sh6RVzn_qitnir0kR7wflOJSbsjDdwxoir9BarHsp7jQ6CjelQQGQ1gDJHoV1gIzFKR-oVOCWovPeUW6Zr9c0dmbFP8KpWiRQkqwy9TE-mHprS_XNN5gauKdt_6-nrYx7La7lGLA1-SFg5DxzaEfk5-fz3-cfW0uLr98O_t00RjRtaUREpRubTWHaECwAaU22BmB2ho3We4sM87ZfmrtxGASgiGAEL1x0vYGxTE5edTdpvh7xVzG2ee9QVgwrnnstORa9ey_oOC6b7VSFfzwCFbvOSd04zb5GdJu5GzcxzL-i6Wi7w6a6zSjfQIPOVTg_QGAbCC4BIvx-YkbpBj23B86oJnF</recordid><startdate>200711</startdate><enddate>200711</enddate><creator>WALKER, Eric</creator><creator>JIANJUN WANG</creator><creator>HAMDI, Naser</creator><creator>MONBOUQUETTE, Harold G</creator><creator>MAIDMENT, Nigel T</creator><general>Royal Society of Chemistry</general><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>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><scope>7X8</scope></search><sort><creationdate>200711</creationdate><title>Selective detection of extracellular glutamate in brain tissue using microelectrode arrays coated with over-oxidized polypyrrole</title><author>WALKER, Eric ; JIANJUN WANG ; HAMDI, Naser ; MONBOUQUETTE, Harold G ; MAIDMENT, Nigel T</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c362t-34a582d364eeca309e48ce6c3e8dcfbd1fd0cffd7b2db0ab330eaa337cf4d7ce3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Analytical chemistry</topic><topic>Animals</topic><topic>Brain Chemistry</topic><topic>Chemistry</topic><topic>Electrochemistry - methods</topic><topic>Exact sciences and technology</topic><topic>Extracellular Space - chemistry</topic><topic>Glutamates - analysis</topic><topic>Humans</topic><topic>Microelectrodes</topic><topic>Polymers</topic><topic>Pyrroles</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>WALKER, Eric</creatorcontrib><creatorcontrib>JIANJUN WANG</creatorcontrib><creatorcontrib>HAMDI, Naser</creatorcontrib><creatorcontrib>MONBOUQUETTE, Harold G</creatorcontrib><creatorcontrib>MAIDMENT, Nigel T</creatorcontrib><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>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>MEDLINE - Academic</collection><jtitle>Analyst (London)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>WALKER, Eric</au><au>JIANJUN WANG</au><au>HAMDI, Naser</au><au>MONBOUQUETTE, Harold G</au><au>MAIDMENT, Nigel T</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Selective detection of extracellular glutamate in brain tissue using microelectrode arrays coated with over-oxidized polypyrrole</atitle><jtitle>Analyst (London)</jtitle><addtitle>Analyst</addtitle><date>2007-11</date><risdate>2007</risdate><volume>132</volume><issue>11</issue><spage>1107</spage><epage>1111</epage><pages>1107-1111</pages><issn>0003-2654</issn><eissn>1364-5528</eissn><coden>ANALAO</coden><abstract>We describe the selective measurement of extracellular glutamate concentration in rodent brain using ceramic-based platinum microelectrode arrays (MEAs) coated with electropolymerized, over-oxidized polypyrrole (OPP) as a permselective barrier to interference from dopamine and ascorbate. 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| ispartof | Analyst (London), 2007-11, Vol.132 (11), p.1107-1111 |
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| language | eng |
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| source | MEDLINE; Royal Society of Chemistry Journals Archive (1841-2007); Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Analytical chemistry Animals Brain Chemistry Chemistry Electrochemistry - methods Exact sciences and technology Extracellular Space - chemistry Glutamates - analysis Humans Microelectrodes Polymers Pyrroles |
| title | Selective detection of extracellular glutamate in brain tissue using microelectrode arrays coated with over-oxidized polypyrrole |
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