A mesoporous silver-doped TiO2-SnO2 nanocomposite on g-C3N4 nanosheets and decorated with a hierarchical core−shell metal-organic framework for simultaneous voltammetric determination of ascorbic acid, dopamine and uric acid
An electrochemical sensor is described for the simultaneous voltammetric determination of ascorbic acid (AA), dopamine (DA), and uric acid (UA). An indium-tin oxide (ITO) electrode was modified with a hierarchical core−shell metal-organic framework and Ag-doped mesoporous metal-oxide based hybrid na...
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| Veröffentlicht in: | Mikrochimica acta (1966) 2020, Vol.187 (1), p.82-82, Article 82 |
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| container_title | Mikrochimica acta (1966) |
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| creator | Krishnan, Srinivasan Tong, Liangyu Liu, Shanhu Xing, Ruimin |
| description | An electrochemical sensor is described for the simultaneous voltammetric determination of ascorbic acid (AA), dopamine (DA), and uric acid (UA). An indium-tin oxide (ITO) electrode was modified with a hierarchical core−shell metal-organic framework and Ag-doped mesoporous metal-oxide based hybrid nanocomposites on g-C
3
N
4
nanosheets. The morphology, structural and chemical composition of the hybrid nanocomposite was characterized using different analytical methods. The modified ITO showed superior electrocatalytic performance towards the oxidation of AA, DA and UA due to the enhanced surface area, synergistic effects and well-organized porous assembly. Figures of merit, include (a) linear responses from 0.1 to 200 μM, 2.5 to 100 μM and 2.5 to 625 μM; (b) detection limits (at S/
N
= 3) of 0.02, 0.01 and 0.06 μM, and (c) well separated oxidation peaks near −50, 186 and 390 mV (vs. Ag/AgCl) for simultaneous sensing AA, DA and UA, respectively. The sensor was evaluated by analysing spiked serum samples and gave data with precision, with recoveries of >98%.
Graphical abstract
Schematic Representation of a Mesoporous Silver-doped TiO
2
-SnO
2
Nanocomposite (h-ATS) on g-C
3
N
4
Nanosheets and Decorated with a Hierarchical Core−Shell Metal-Organic Framework (NC@GC) Based Electrochemical Sensor for Simultaneous Voltammetric Detection of Ascorbic acid, Dopamine and Uric acid |
| doi_str_mv | 10.1007/s00604-019-4045-x |
| format | Article |
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3
N
4
nanosheets. The morphology, structural and chemical composition of the hybrid nanocomposite was characterized using different analytical methods. The modified ITO showed superior electrocatalytic performance towards the oxidation of AA, DA and UA due to the enhanced surface area, synergistic effects and well-organized porous assembly. Figures of merit, include (a) linear responses from 0.1 to 200 μM, 2.5 to 100 μM and 2.5 to 625 μM; (b) detection limits (at S/
N
= 3) of 0.02, 0.01 and 0.06 μM, and (c) well separated oxidation peaks near −50, 186 and 390 mV (vs. Ag/AgCl) for simultaneous sensing AA, DA and UA, respectively. The sensor was evaluated by analysing spiked serum samples and gave data with precision, with recoveries of >98%.
Graphical abstract
Schematic Representation of a Mesoporous Silver-doped TiO
2
-SnO
2
Nanocomposite (h-ATS) on g-C
3
N
4
Nanosheets and Decorated with a Hierarchical Core−Shell Metal-Organic Framework (NC@GC) Based Electrochemical Sensor for Simultaneous Voltammetric Detection of Ascorbic acid, Dopamine and Uric acid</description><identifier>ISSN: 0026-3672</identifier><identifier>EISSN: 1436-5073</identifier><identifier>DOI: 10.1007/s00604-019-4045-x</identifier><language>eng</language><publisher>Vienna: Springer Vienna</publisher><subject>Analytical Chemistry ; Characterization and Evaluation of Materials ; Chemistry ; Chemistry and Materials Science ; Microengineering ; Nanochemistry ; Nanotechnology ; Original Paper</subject><ispartof>Mikrochimica acta (1966), 2020, Vol.187 (1), p.82-82, Article 82</ispartof><rights>Springer-Verlag GmbH Austria, part of Springer Nature 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c321t-ecae67721ec76874486835954ddec0cd3ffbcbc14d478388a658b153734047b23</citedby><cites>FETCH-LOGICAL-c321t-ecae67721ec76874486835954ddec0cd3ffbcbc14d478388a658b153734047b23</cites><orcidid>0000-0003-1382-7157</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00604-019-4045-x$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00604-019-4045-x$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27923,27924,41487,42556,51318</link.rule.ids></links><search><creatorcontrib>Krishnan, Srinivasan</creatorcontrib><creatorcontrib>Tong, Liangyu</creatorcontrib><creatorcontrib>Liu, Shanhu</creatorcontrib><creatorcontrib>Xing, Ruimin</creatorcontrib><title>A mesoporous silver-doped TiO2-SnO2 nanocomposite on g-C3N4 nanosheets and decorated with a hierarchical core−shell metal-organic framework for simultaneous voltammetric determination of ascorbic acid, dopamine and uric acid</title><title>Mikrochimica acta (1966)</title><addtitle>Microchim Acta</addtitle><description>An electrochemical sensor is described for the simultaneous voltammetric determination of ascorbic acid (AA), dopamine (DA), and uric acid (UA). An indium-tin oxide (ITO) electrode was modified with a hierarchical core−shell metal-organic framework and Ag-doped mesoporous metal-oxide based hybrid nanocomposites on g-C
3
N
4
nanosheets. The morphology, structural and chemical composition of the hybrid nanocomposite was characterized using different analytical methods. The modified ITO showed superior electrocatalytic performance towards the oxidation of AA, DA and UA due to the enhanced surface area, synergistic effects and well-organized porous assembly. Figures of merit, include (a) linear responses from 0.1 to 200 μM, 2.5 to 100 μM and 2.5 to 625 μM; (b) detection limits (at S/
N
= 3) of 0.02, 0.01 and 0.06 μM, and (c) well separated oxidation peaks near −50, 186 and 390 mV (vs. Ag/AgCl) for simultaneous sensing AA, DA and UA, respectively. The sensor was evaluated by analysing spiked serum samples and gave data with precision, with recoveries of >98%.
Graphical abstract
Schematic Representation of a Mesoporous Silver-doped TiO
2
-SnO
2
Nanocomposite (h-ATS) on g-C
3
N
4
Nanosheets and Decorated with a Hierarchical Core−Shell Metal-Organic Framework (NC@GC) Based Electrochemical Sensor for Simultaneous Voltammetric Detection of Ascorbic acid, Dopamine and Uric acid</description><subject>Analytical Chemistry</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Microengineering</subject><subject>Nanochemistry</subject><subject>Nanotechnology</subject><subject>Original Paper</subject><issn>0026-3672</issn><issn>1436-5073</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9UUty1DAUdFFQxRA4ADstWSDQz5azTE1BoCrFLAhrlSw_zyjYkpHkJNyANSfgLByFXCRv4qxZSfW6-6lbXVWvOXvHGdPvM2MNU5TxU6qYquntk2rDlWxozbR8Wm0YEw2VjRbPqxc5XzHGdSPUpro7IxPkOMcUl0yyH68h0T7O0JNLvxP0a9gJEmyILk5zzL4AiYHs6VZ-UQ_zfAAomdjQkx5cTLag9MaXA7Hk4CHZ5A7e2fHvHwTh36_fKBhHfLTYkca0t8E7MiQ7wU1M38kQE7qYlrHYAEdL1xGvE9IT8nookCYfbPHoIg7EZtzaIWKd798SNG4Rhgc7S3qcv6yeDXbM8OrxPKm-ffxwuf1EL3bnn7dnF9RJwQsFZ6HRWnBwumm1Um3Tyvq0Vj0GY66Xw9C5znHVK93KtrVN3Xa8llrij-tOyJPqzbp3TvHHArmYyWeHadcoRkgpG1a3TCGVr1SXYs4JBjMnP9n003BmjoWatVCDhZpjoeYWNWLVZOSGPSRzFZcUMNF_RPfhyasn</recordid><startdate>2020</startdate><enddate>2020</enddate><creator>Krishnan, Srinivasan</creator><creator>Tong, Liangyu</creator><creator>Liu, Shanhu</creator><creator>Xing, Ruimin</creator><general>Springer Vienna</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0003-1382-7157</orcidid></search><sort><creationdate>2020</creationdate><title>A mesoporous silver-doped TiO2-SnO2 nanocomposite on g-C3N4 nanosheets and decorated with a hierarchical core−shell metal-organic framework for simultaneous voltammetric determination of ascorbic acid, dopamine and uric acid</title><author>Krishnan, Srinivasan ; Tong, Liangyu ; Liu, Shanhu ; Xing, Ruimin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c321t-ecae67721ec76874486835954ddec0cd3ffbcbc14d478388a658b153734047b23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Analytical Chemistry</topic><topic>Characterization and Evaluation of Materials</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Microengineering</topic><topic>Nanochemistry</topic><topic>Nanotechnology</topic><topic>Original Paper</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Krishnan, Srinivasan</creatorcontrib><creatorcontrib>Tong, Liangyu</creatorcontrib><creatorcontrib>Liu, Shanhu</creatorcontrib><creatorcontrib>Xing, Ruimin</creatorcontrib><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Mikrochimica acta (1966)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Krishnan, Srinivasan</au><au>Tong, Liangyu</au><au>Liu, Shanhu</au><au>Xing, Ruimin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A mesoporous silver-doped TiO2-SnO2 nanocomposite on g-C3N4 nanosheets and decorated with a hierarchical core−shell metal-organic framework for simultaneous voltammetric determination of ascorbic acid, dopamine and uric acid</atitle><jtitle>Mikrochimica acta (1966)</jtitle><stitle>Microchim Acta</stitle><date>2020</date><risdate>2020</risdate><volume>187</volume><issue>1</issue><spage>82</spage><epage>82</epage><pages>82-82</pages><artnum>82</artnum><issn>0026-3672</issn><eissn>1436-5073</eissn><abstract>An electrochemical sensor is described for the simultaneous voltammetric determination of ascorbic acid (AA), dopamine (DA), and uric acid (UA). An indium-tin oxide (ITO) electrode was modified with a hierarchical core−shell metal-organic framework and Ag-doped mesoporous metal-oxide based hybrid nanocomposites on g-C
3
N
4
nanosheets. The morphology, structural and chemical composition of the hybrid nanocomposite was characterized using different analytical methods. The modified ITO showed superior electrocatalytic performance towards the oxidation of AA, DA and UA due to the enhanced surface area, synergistic effects and well-organized porous assembly. Figures of merit, include (a) linear responses from 0.1 to 200 μM, 2.5 to 100 μM and 2.5 to 625 μM; (b) detection limits (at S/
N
= 3) of 0.02, 0.01 and 0.06 μM, and (c) well separated oxidation peaks near −50, 186 and 390 mV (vs. Ag/AgCl) for simultaneous sensing AA, DA and UA, respectively. The sensor was evaluated by analysing spiked serum samples and gave data with precision, with recoveries of >98%.
Graphical abstract
Schematic Representation of a Mesoporous Silver-doped TiO
2
-SnO
2
Nanocomposite (h-ATS) on g-C
3
N
4
Nanosheets and Decorated with a Hierarchical Core−Shell Metal-Organic Framework (NC@GC) Based Electrochemical Sensor for Simultaneous Voltammetric Detection of Ascorbic acid, Dopamine and Uric acid</abstract><cop>Vienna</cop><pub>Springer Vienna</pub><doi>10.1007/s00604-019-4045-x</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0003-1382-7157</orcidid></addata></record> |
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| source | SpringerLink Journals - AutoHoldings |
| subjects | Analytical Chemistry Characterization and Evaluation of Materials Chemistry Chemistry and Materials Science Microengineering Nanochemistry Nanotechnology Original Paper |
| title | A mesoporous silver-doped TiO2-SnO2 nanocomposite on g-C3N4 nanosheets and decorated with a hierarchical core−shell metal-organic framework for simultaneous voltammetric determination of ascorbic acid, dopamine and uric acid |
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