Preparation of electro-reduced graphene oxide supported walnut shape nickel nanostructures, and their application to selective detection of dopamine
A selective and sensitive method is reported for the detection of dopamine (DA) by using electro-reduced graphene oxide (er-GO) supported walnut shape nickel nanocomposite (er-GO-Ni) modified glassy carbon electrode. The surface morphological characterizations reveal that the Ni nanoparticles were h...
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| Veröffentlicht in: | Mikrochimica acta (1966) 2016-05, Vol.183 (5), p.1759-1768 |
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| container_title | Mikrochimica acta (1966) |
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| creator | Kumar, M. Kaleesh Prataap, R. K. Vishnu Mohan, S. Jha, Shailendra K. |
| description | A selective and sensitive method is reported for the detection of dopamine (DA) by using electro-reduced graphene oxide (er-GO) supported walnut shape nickel nanocomposite (er-GO-Ni) modified glassy carbon electrode. The surface morphological characterizations reveal that the Ni nanoparticles were homogeneously distributed on the er-GO nanosheets. Subsequently the electrochemical study shows an excellent selectivity, reproducibility, low detection limit (10 ± 0.03 nM), high sensitivity (23.3 nA·μM
−1
), and reasonably wide linear range (0.05–50 μM) for the detection of DA at +0.1 V vs SCE. The selectivity for DA over ascorbic acid and uric acid is attributed to the charge-based discrimination of the modified electrode. An excellent correspondence of calculated and reported rate constant for the DA oxidation is also obtained by hydrodynamic experiments using a rotating disk electrode.
Graphical abstract
Selective detection of dopamine is demonstrated and assumed to be due to (i) a Nafion film coating, (ii) repulsive electrostatic interaction with the negative charge on residual oxygen functionality of electro-reduced graphene oxide (er-GO), and (iii) the presence of oxide or hydroxide Ni species during deposition of sample. |
| doi_str_mv | 10.1007/s00604-016-1806-7 |
| format | Article |
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−1
), and reasonably wide linear range (0.05–50 μM) for the detection of DA at +0.1 V vs SCE. The selectivity for DA over ascorbic acid and uric acid is attributed to the charge-based discrimination of the modified electrode. An excellent correspondence of calculated and reported rate constant for the DA oxidation is also obtained by hydrodynamic experiments using a rotating disk electrode.
Graphical abstract
Selective detection of dopamine is demonstrated and assumed to be due to (i) a Nafion film coating, (ii) repulsive electrostatic interaction with the negative charge on residual oxygen functionality of electro-reduced graphene oxide (er-GO), and (iii) the presence of oxide or hydroxide Ni species during deposition of sample.</description><identifier>ISSN: 0026-3672</identifier><identifier>EISSN: 1436-5073</identifier><identifier>DOI: 10.1007/s00604-016-1806-7</identifier><language>eng</language><publisher>Vienna: Springer Vienna</publisher><subject>Analytical Chemistry ; Ascorbic acid ; Characterization and Evaluation of Materials ; Chemistry ; Chemistry and Materials Science ; Dopamine ; Electric properties ; Electrodes ; Glassy carbon ; Graphene ; Graphite ; Microengineering ; Nanochemistry ; Nanocomposites ; Nanoparticles ; Nanotechnology ; Nickel ; Organic acids ; Original Paper ; Oxidation ; Phenols ; Reproducibility ; Rotating disks ; Selectivity ; Uric acid</subject><ispartof>Mikrochimica acta (1966), 2016-05, Vol.183 (5), p.1759-1768</ispartof><rights>Springer-Verlag Wien 2016</rights><rights>COPYRIGHT 2016 Springer</rights><rights>Microchimica Acta is a copyright of Springer, (2016). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c383t-2976b9b131f420a088ea3b7db9b1441e54b9fbacfbadbfa9672af0ce1442cbe23</citedby><cites>FETCH-LOGICAL-c383t-2976b9b131f420a088ea3b7db9b1441e54b9fbacfbadbfa9672af0ce1442cbe23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00604-016-1806-7$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00604-016-1806-7$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Kumar, M. Kaleesh</creatorcontrib><creatorcontrib>Prataap, R. K. Vishnu</creatorcontrib><creatorcontrib>Mohan, S.</creatorcontrib><creatorcontrib>Jha, Shailendra K.</creatorcontrib><title>Preparation of electro-reduced graphene oxide supported walnut shape nickel nanostructures, and their application to selective detection of dopamine</title><title>Mikrochimica acta (1966)</title><addtitle>Microchim Acta</addtitle><description>A selective and sensitive method is reported for the detection of dopamine (DA) by using electro-reduced graphene oxide (er-GO) supported walnut shape nickel nanocomposite (er-GO-Ni) modified glassy carbon electrode. The surface morphological characterizations reveal that the Ni nanoparticles were homogeneously distributed on the er-GO nanosheets. Subsequently the electrochemical study shows an excellent selectivity, reproducibility, low detection limit (10 ± 0.03 nM), high sensitivity (23.3 nA·μM
−1
), and reasonably wide linear range (0.05–50 μM) for the detection of DA at +0.1 V vs SCE. The selectivity for DA over ascorbic acid and uric acid is attributed to the charge-based discrimination of the modified electrode. An excellent correspondence of calculated and reported rate constant for the DA oxidation is also obtained by hydrodynamic experiments using a rotating disk electrode.
Graphical abstract
Selective detection of dopamine is demonstrated and assumed to be due to (i) a Nafion film coating, (ii) repulsive electrostatic interaction with the negative charge on residual oxygen functionality of electro-reduced graphene oxide (er-GO), and (iii) the presence of oxide or hydroxide Ni species during deposition of sample.</description><subject>Analytical Chemistry</subject><subject>Ascorbic acid</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Dopamine</subject><subject>Electric properties</subject><subject>Electrodes</subject><subject>Glassy carbon</subject><subject>Graphene</subject><subject>Graphite</subject><subject>Microengineering</subject><subject>Nanochemistry</subject><subject>Nanocomposites</subject><subject>Nanoparticles</subject><subject>Nanotechnology</subject><subject>Nickel</subject><subject>Organic acids</subject><subject>Original Paper</subject><subject>Oxidation</subject><subject>Phenols</subject><subject>Reproducibility</subject><subject>Rotating disks</subject><subject>Selectivity</subject><subject>Uric acid</subject><issn>0026-3672</issn><issn>1436-5073</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp1kc2OFSEQhYnRxOvoA7gjcWuP0D_QvZxMdDSZRBe6JtVQ3MvYFxBof97DB5a2jdFEQwik6jsc4BDylLNLzph8kRkTrG8YFw0fmWjkPXLgfSeagcnuPjkw1oqmE7J9SB7lfMcYl6LtD-T7u4QREhQXPA2W4oK6pNAkNKtGQ48J4gk90vDVGaR5jTGkUhtfYPFrofkEEal3-iMu1IMPuaRVlzVhfk7BG1pO6BKFGBend5cSaP5p4z4jNVi23W5uQoSz8_iYPLCwZHzya70gH169fH_9url9e_Pm-uq20d3YlaadpJinmXfc9i0DNo4I3SzNVut7jkM_T3YGXaeZLUz19WCZxtps9Yxtd0Ge7efGFD6tmIu6C2vy1VLxSYyDELz-4W_qCAsq520oCfTZZa2uJB_YBg2VuvwHVYfBs9PBo3W1_peA7wKdQs4JrYrJnSF9U5ypLVO1Z6pqpmrLVMmqaXdNrqw_Yvrjwv8V_QA94adA</recordid><startdate>20160501</startdate><enddate>20160501</enddate><creator>Kumar, M. 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Kaleesh</au><au>Prataap, R. K. Vishnu</au><au>Mohan, S.</au><au>Jha, Shailendra K.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Preparation of electro-reduced graphene oxide supported walnut shape nickel nanostructures, and their application to selective detection of dopamine</atitle><jtitle>Mikrochimica acta (1966)</jtitle><stitle>Microchim Acta</stitle><date>2016-05-01</date><risdate>2016</risdate><volume>183</volume><issue>5</issue><spage>1759</spage><epage>1768</epage><pages>1759-1768</pages><issn>0026-3672</issn><eissn>1436-5073</eissn><abstract>A selective and sensitive method is reported for the detection of dopamine (DA) by using electro-reduced graphene oxide (er-GO) supported walnut shape nickel nanocomposite (er-GO-Ni) modified glassy carbon electrode. The surface morphological characterizations reveal that the Ni nanoparticles were homogeneously distributed on the er-GO nanosheets. Subsequently the electrochemical study shows an excellent selectivity, reproducibility, low detection limit (10 ± 0.03 nM), high sensitivity (23.3 nA·μM
−1
), and reasonably wide linear range (0.05–50 μM) for the detection of DA at +0.1 V vs SCE. The selectivity for DA over ascorbic acid and uric acid is attributed to the charge-based discrimination of the modified electrode. An excellent correspondence of calculated and reported rate constant for the DA oxidation is also obtained by hydrodynamic experiments using a rotating disk electrode.
Graphical abstract
Selective detection of dopamine is demonstrated and assumed to be due to (i) a Nafion film coating, (ii) repulsive electrostatic interaction with the negative charge on residual oxygen functionality of electro-reduced graphene oxide (er-GO), and (iii) the presence of oxide or hydroxide Ni species during deposition of sample.</abstract><cop>Vienna</cop><pub>Springer Vienna</pub><doi>10.1007/s00604-016-1806-7</doi><tpages>10</tpages></addata></record> |
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| subjects | Analytical Chemistry Ascorbic acid Characterization and Evaluation of Materials Chemistry Chemistry and Materials Science Dopamine Electric properties Electrodes Glassy carbon Graphene Graphite Microengineering Nanochemistry Nanocomposites Nanoparticles Nanotechnology Nickel Organic acids Original Paper Oxidation Phenols Reproducibility Rotating disks Selectivity Uric acid |
| title | Preparation of electro-reduced graphene oxide supported walnut shape nickel nanostructures, and their application to selective detection of dopamine |
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