Selective Detection Method Derived from a Controlled Diffusion Process at Metal-Modified Diamond Electrodes
A novel, selective methodology is derived based on the difference between the diffusion processes at microelectrodes (i.e., hemispherical diffusion) and the macroelectrode (i.e., linear diffusion) in a metal-implanted boron-doped diamond electrode (metal-BDDs). As an example, the selective detection...
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Veröffentlicht in: | Analytical chemistry (Washington) 2006-11, Vol.78 (22), p.7857-7860 |
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creator | Watanabe, Takeshi Ivandini, Tribidasari A Makide, Yoshihiro Fujishima, Akira Einaga, Yasuaki |
description | A novel, selective methodology is derived based on the difference between the diffusion processes at microelectrodes (i.e., hemispherical diffusion) and the macroelectrode (i.e., linear diffusion) in a metal-implanted boron-doped diamond electrode (metal-BDDs). As an example, the selective detection of glucose in a solution containing interference species such as ascorbic acid and uric acid is demonstrated. The electrochemical properties of BDD, which are low background current, extremely high stability, and (especially) inactivity toward glucose, play an important role in realizing these differences in the diffusion characteristics. The present methodology can be applied not only to selective glucose detection by the metal-BDD system but also to other selective detection systems. |
doi_str_mv | 10.1021/ac060860j |
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As an example, the selective detection of glucose in a solution containing interference species such as ascorbic acid and uric acid is demonstrated. The electrochemical properties of BDD, which are low background current, extremely high stability, and (especially) inactivity toward glucose, play an important role in realizing these differences in the diffusion characteristics. 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The present methodology can be applied not only to selective glucose detection by the metal-BDD system but also to other selective detection systems.</description><subject>Analytical chemistry</subject><subject>Ascorbic Acid - chemistry</subject><subject>Biosensing Techniques</subject><subject>Chemistry</subject><subject>Diamond - chemistry</subject><subject>Diamonds</subject><subject>Diffusion</subject><subject>Electrochemical methods</subject><subject>Electrochemistry</subject><subject>Electrodes</subject><subject>Exact sciences and technology</subject><subject>Glucose</subject><subject>Glucose - analysis</subject><subject>Metals - chemistry</subject><subject>Sensitivity and Specificity</subject><subject>Surface Properties</subject><subject>Time Factors</subject><subject>Uric Acid - chemistry</subject><issn>0003-2700</issn><issn>1520-6882</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpl0EFv0zAUB3ALgVgZHPgCKEICaYeM9-zEdo6oGwNpFZNaOHCxXOdZpEviYScIvj3JWq0SO9l6_vkv-8_Ya4RzBI4frAMJWsLuCVtgySGXWvOnbAEAIucK4IS9SGkHgAgon7MTVAglaliw2zW15IbmN2UXNMy70GcrGn6GehrEaV5nPoYus9ky9EMMbTtNLhrvxzTTmxgcpZTZYb5l23wV6sY398Z2oa-zyzk_hprSS_bM2zbRq8N6yr59utwsP-fXX6--LD9e57ZQxZCXWFVU8NJtlS9Qb72wXiAW9dZqUcsKlHSVrSpJlXZeEQlpOSfShaBKaiFO2ft97l0Mv0ZKg-ma5KhtbU9hTEbqqSSh1QTf_gd3YYz99DbDUWnF8R6d7ZGLIaVI3tzFprPxr0Ewc_3mof7JvjkEjtuO6qM89D2Bdwdgk7Otj7Z3TTo6LRAULyeX712TBvrzcG7jrZFKqNJsbtZmI-R3XP1YmvUx17p0_MTjB_4D5RunGA</recordid><startdate>20061115</startdate><enddate>20061115</enddate><creator>Watanabe, Takeshi</creator><creator>Ivandini, Tribidasari A</creator><creator>Makide, Yoshihiro</creator><creator>Fujishima, Akira</creator><creator>Einaga, Yasuaki</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>7QF</scope><scope>7QO</scope><scope>7QQ</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7TA</scope><scope>7TB</scope><scope>7TM</scope><scope>7U5</scope><scope>7U7</scope><scope>7U9</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>H94</scope><scope>JG9</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>P64</scope><scope>7X8</scope></search><sort><creationdate>20061115</creationdate><title>Selective Detection Method Derived from a Controlled Diffusion Process at Metal-Modified Diamond Electrodes</title><author>Watanabe, Takeshi ; 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Chem</addtitle><date>2006-11-15</date><risdate>2006</risdate><volume>78</volume><issue>22</issue><spage>7857</spage><epage>7860</epage><pages>7857-7860</pages><issn>0003-2700</issn><eissn>1520-6882</eissn><coden>ANCHAM</coden><abstract>A novel, selective methodology is derived based on the difference between the diffusion processes at microelectrodes (i.e., hemispherical diffusion) and the macroelectrode (i.e., linear diffusion) in a metal-implanted boron-doped diamond electrode (metal-BDDs). As an example, the selective detection of glucose in a solution containing interference species such as ascorbic acid and uric acid is demonstrated. The electrochemical properties of BDD, which are low background current, extremely high stability, and (especially) inactivity toward glucose, play an important role in realizing these differences in the diffusion characteristics. The present methodology can be applied not only to selective glucose detection by the metal-BDD system but also to other selective detection systems.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>17105180</pmid><doi>10.1021/ac060860j</doi><tpages>4</tpages></addata></record> |
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subjects | Analytical chemistry Ascorbic Acid - chemistry Biosensing Techniques Chemistry Diamond - chemistry Diamonds Diffusion Electrochemical methods Electrochemistry Electrodes Exact sciences and technology Glucose Glucose - analysis Metals - chemistry Sensitivity and Specificity Surface Properties Time Factors Uric Acid - chemistry |
title | Selective Detection Method Derived from a Controlled Diffusion Process at Metal-Modified Diamond Electrodes |
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