The Ag+–G interaction inhibits the electrocatalytic oxidation of guanine – A novel mechanism for Ag+ detection
The heavy metal ions–nucleobases interaction is an important research topic in environmental and biochemical analysis. The presence of the silver ion (Ag+) may influence the formation of oxidation intermediate and the electrocatalytic oxidation activity of guanine (G), since Ag+ can interact with gu...
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| Veröffentlicht in: | Talanta (Oxford) 2011-09, Vol.85 (3), p.1603-1608 |
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| creator | Liu, Xingxing Li, Wang Shen, Qinpeng Nie, Zhou Guo, Manli Han, Yitao Liu, Wei Yao, Shouzhuo |
| description | The heavy metal ions–nucleobases interaction is an important research topic in environmental and biochemical analysis. The presence of the silver ion (Ag+) may influence the formation of oxidation intermediate and the electrocatalytic oxidation activity of guanine (G), since Ag+ can interact with guanine at the binding sites which are involved in the electrocatalytic oxidation reaction of guanine. According to this principle, a new electrochemical sensor for indirectly detecting Ag+ based on the interaction of Ag+ with isolated guanine base using differential pulse voltammetry (DPV) was constructed. Among the heavy metal ions examined, only Ag+ showed the strongest inhibitory effect on the electrocatalytic oxidation of guanine at the multi-walled carbon nanotubes modified glassy carbon electrode (CNTs/GC). And the quantitative study of Ag+ based on Ag+–G sensing system gave a linear range from 100nM to 2.5μM with a detection limit of 30nM. In addition, this modified electrode had very good reproducibility and stability. The developed electrochemical method is an ideal tool for Ag+ detection with some merits including remarkable simplicity, low-cost, and no requirement for probe preparation. |
| doi_str_mv | 10.1016/j.talanta.2011.06.061 |
| format | Article |
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The presence of the silver ion (Ag+) may influence the formation of oxidation intermediate and the electrocatalytic oxidation activity of guanine (G), since Ag+ can interact with guanine at the binding sites which are involved in the electrocatalytic oxidation reaction of guanine. According to this principle, a new electrochemical sensor for indirectly detecting Ag+ based on the interaction of Ag+ with isolated guanine base using differential pulse voltammetry (DPV) was constructed. Among the heavy metal ions examined, only Ag+ showed the strongest inhibitory effect on the electrocatalytic oxidation of guanine at the multi-walled carbon nanotubes modified glassy carbon electrode (CNTs/GC). And the quantitative study of Ag+ based on Ag+–G sensing system gave a linear range from 100nM to 2.5μM with a detection limit of 30nM. In addition, this modified electrode had very good reproducibility and stability. The developed electrochemical method is an ideal tool for Ag+ detection with some merits including remarkable simplicity, low-cost, and no requirement for probe preparation.</description><identifier>ISSN: 0039-9140</identifier><identifier>EISSN: 1873-3573</identifier><identifier>DOI: 10.1016/j.talanta.2011.06.061</identifier><identifier>PMID: 21807228</identifier><identifier>CODEN: TLNTA2</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Algorithms ; Analytical chemistry ; Applied sciences ; Biosensing Techniques - economics ; Biosensing Techniques - instrumentation ; Biosensing Techniques - methods ; Carbon nanotubes ; Catalysis ; Chemistry ; Chromatographic methods and physical methods associated with chromatography ; Electrocatalytic oxidation ; Electrochemical methods ; Electrochemical Techniques - economics ; Electrochemical Techniques - instrumentation ; Electrochemical Techniques - methods ; Electrodes ; Environmental Monitoring - methods ; Exact sciences and technology ; Fresh Water - analysis ; Fresh Water - chemistry ; Gas chromatographic methods ; General, instrumentation ; Glass ; Global environmental pollution ; Guanine ; Guanine - analysis ; Guanine - chemistry ; Humans ; Inhibition ; Kinetics ; Nanotubes, Carbon - chemistry ; Oxidation-Reduction ; Pollution ; Reproducibility of Results ; Silver - analysis ; Silver - chemistry ; Silver ion ; Water Pollutants, Chemical - analysis ; Water Wells - analysis ; Water Wells - chemistry</subject><ispartof>Talanta (Oxford), 2011-09, Vol.85 (3), p.1603-1608</ispartof><rights>2011 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><rights>Copyright © 2011 Elsevier B.V. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c460t-bfb53c1d3053ef737f95b5d38a85688aba0ca62e3cfb6f9fd8922f5f865726e93</citedby><cites>FETCH-LOGICAL-c460t-bfb53c1d3053ef737f95b5d38a85688aba0ca62e3cfb6f9fd8922f5f865726e93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.talanta.2011.06.061$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3548,27923,27924,45994</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24420486$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21807228$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Liu, Xingxing</creatorcontrib><creatorcontrib>Li, Wang</creatorcontrib><creatorcontrib>Shen, Qinpeng</creatorcontrib><creatorcontrib>Nie, Zhou</creatorcontrib><creatorcontrib>Guo, Manli</creatorcontrib><creatorcontrib>Han, Yitao</creatorcontrib><creatorcontrib>Liu, Wei</creatorcontrib><creatorcontrib>Yao, Shouzhuo</creatorcontrib><title>The Ag+–G interaction inhibits the electrocatalytic oxidation of guanine – A novel mechanism for Ag+ detection</title><title>Talanta (Oxford)</title><addtitle>Talanta</addtitle><description>The heavy metal ions–nucleobases interaction is an important research topic in environmental and biochemical analysis. The presence of the silver ion (Ag+) may influence the formation of oxidation intermediate and the electrocatalytic oxidation activity of guanine (G), since Ag+ can interact with guanine at the binding sites which are involved in the electrocatalytic oxidation reaction of guanine. According to this principle, a new electrochemical sensor for indirectly detecting Ag+ based on the interaction of Ag+ with isolated guanine base using differential pulse voltammetry (DPV) was constructed. Among the heavy metal ions examined, only Ag+ showed the strongest inhibitory effect on the electrocatalytic oxidation of guanine at the multi-walled carbon nanotubes modified glassy carbon electrode (CNTs/GC). And the quantitative study of Ag+ based on Ag+–G sensing system gave a linear range from 100nM to 2.5μM with a detection limit of 30nM. In addition, this modified electrode had very good reproducibility and stability. The developed electrochemical method is an ideal tool for Ag+ detection with some merits including remarkable simplicity, low-cost, and no requirement for probe preparation.</description><subject>Algorithms</subject><subject>Analytical chemistry</subject><subject>Applied sciences</subject><subject>Biosensing Techniques - economics</subject><subject>Biosensing Techniques - instrumentation</subject><subject>Biosensing Techniques - methods</subject><subject>Carbon nanotubes</subject><subject>Catalysis</subject><subject>Chemistry</subject><subject>Chromatographic methods and physical methods associated with chromatography</subject><subject>Electrocatalytic oxidation</subject><subject>Electrochemical methods</subject><subject>Electrochemical Techniques - economics</subject><subject>Electrochemical Techniques - instrumentation</subject><subject>Electrochemical Techniques - methods</subject><subject>Electrodes</subject><subject>Environmental Monitoring - methods</subject><subject>Exact sciences and technology</subject><subject>Fresh Water - analysis</subject><subject>Fresh Water - chemistry</subject><subject>Gas chromatographic methods</subject><subject>General, instrumentation</subject><subject>Glass</subject><subject>Global environmental pollution</subject><subject>Guanine</subject><subject>Guanine - analysis</subject><subject>Guanine - chemistry</subject><subject>Humans</subject><subject>Inhibition</subject><subject>Kinetics</subject><subject>Nanotubes, Carbon - chemistry</subject><subject>Oxidation-Reduction</subject><subject>Pollution</subject><subject>Reproducibility of Results</subject><subject>Silver - analysis</subject><subject>Silver - chemistry</subject><subject>Silver ion</subject><subject>Water Pollutants, Chemical - analysis</subject><subject>Water Wells - analysis</subject><subject>Water Wells - chemistry</subject><issn>0039-9140</issn><issn>1873-3573</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkMGKFDEURYMoTjv6CUo24kKqfUkqqdRKmkFHYcDNuA6p1Mt0mqrKmKQHZ-c_-Id-ienpVpfCg4Rw3r3hEPKSwZoBU-9262InuxS75sDYGlQd9oismO5EI2QnHpMVgOibnrVwRp7lvAMALkA8JWecaeg41yuSrrdINzdvf_34eUnDUjBZV0Jc6n0bhlAyLRXACV1J0dnaeV-Co_F7GO0DFz292dslLEhrBt3QJd7hRGd02_qaZ-pjOhTQEQs-RD8nT7ydMr44nefk68cP1xefmqsvl58vNleNaxWUZvCDFI6NAqRA34nO93KQo9BWS6W1HSw4qzgK5wflez_qnnMvvVay4wp7cU7eHHNvU_y2x1zMHLLDqVrDuM9Ga1aFtFpUUh5Jl2LOCb25TWG26d4wMAfbZmdOts3BtgFVh9W9V6eG_TDj-Hfrj94KvD4BNjs7-WQXF_I_rm05tFpV7v2Rw-rjLmAy2QVcHI4hVWlmjOE_X_kNkEmi2g</recordid><startdate>20110915</startdate><enddate>20110915</enddate><creator>Liu, Xingxing</creator><creator>Li, Wang</creator><creator>Shen, Qinpeng</creator><creator>Nie, Zhou</creator><creator>Guo, Manli</creator><creator>Han, Yitao</creator><creator>Liu, Wei</creator><creator>Yao, Shouzhuo</creator><general>Elsevier B.V</general><general>Elsevier</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>7X8</scope></search><sort><creationdate>20110915</creationdate><title>The Ag+–G interaction inhibits the electrocatalytic oxidation of guanine – A novel mechanism for Ag+ detection</title><author>Liu, Xingxing ; Li, Wang ; Shen, Qinpeng ; Nie, Zhou ; Guo, Manli ; Han, Yitao ; Liu, Wei ; Yao, Shouzhuo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c460t-bfb53c1d3053ef737f95b5d38a85688aba0ca62e3cfb6f9fd8922f5f865726e93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Algorithms</topic><topic>Analytical chemistry</topic><topic>Applied sciences</topic><topic>Biosensing Techniques - economics</topic><topic>Biosensing Techniques - instrumentation</topic><topic>Biosensing Techniques - methods</topic><topic>Carbon nanotubes</topic><topic>Catalysis</topic><topic>Chemistry</topic><topic>Chromatographic methods and physical methods associated with chromatography</topic><topic>Electrocatalytic oxidation</topic><topic>Electrochemical methods</topic><topic>Electrochemical Techniques - economics</topic><topic>Electrochemical Techniques - instrumentation</topic><topic>Electrochemical Techniques - methods</topic><topic>Electrodes</topic><topic>Environmental Monitoring - methods</topic><topic>Exact sciences and technology</topic><topic>Fresh Water - analysis</topic><topic>Fresh Water - chemistry</topic><topic>Gas chromatographic methods</topic><topic>General, instrumentation</topic><topic>Glass</topic><topic>Global environmental pollution</topic><topic>Guanine</topic><topic>Guanine - analysis</topic><topic>Guanine - chemistry</topic><topic>Humans</topic><topic>Inhibition</topic><topic>Kinetics</topic><topic>Nanotubes, Carbon - chemistry</topic><topic>Oxidation-Reduction</topic><topic>Pollution</topic><topic>Reproducibility of Results</topic><topic>Silver - analysis</topic><topic>Silver - chemistry</topic><topic>Silver ion</topic><topic>Water Pollutants, Chemical - analysis</topic><topic>Water Wells - analysis</topic><topic>Water Wells - chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liu, Xingxing</creatorcontrib><creatorcontrib>Li, Wang</creatorcontrib><creatorcontrib>Shen, Qinpeng</creatorcontrib><creatorcontrib>Nie, Zhou</creatorcontrib><creatorcontrib>Guo, Manli</creatorcontrib><creatorcontrib>Han, Yitao</creatorcontrib><creatorcontrib>Liu, Wei</creatorcontrib><creatorcontrib>Yao, Shouzhuo</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>MEDLINE - Academic</collection><jtitle>Talanta (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liu, Xingxing</au><au>Li, Wang</au><au>Shen, Qinpeng</au><au>Nie, Zhou</au><au>Guo, Manli</au><au>Han, Yitao</au><au>Liu, Wei</au><au>Yao, Shouzhuo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The Ag+–G interaction inhibits the electrocatalytic oxidation of guanine – A novel mechanism for Ag+ detection</atitle><jtitle>Talanta (Oxford)</jtitle><addtitle>Talanta</addtitle><date>2011-09-15</date><risdate>2011</risdate><volume>85</volume><issue>3</issue><spage>1603</spage><epage>1608</epage><pages>1603-1608</pages><issn>0039-9140</issn><eissn>1873-3573</eissn><coden>TLNTA2</coden><abstract>The heavy metal ions–nucleobases interaction is an important research topic in environmental and biochemical analysis. The presence of the silver ion (Ag+) may influence the formation of oxidation intermediate and the electrocatalytic oxidation activity of guanine (G), since Ag+ can interact with guanine at the binding sites which are involved in the electrocatalytic oxidation reaction of guanine. According to this principle, a new electrochemical sensor for indirectly detecting Ag+ based on the interaction of Ag+ with isolated guanine base using differential pulse voltammetry (DPV) was constructed. Among the heavy metal ions examined, only Ag+ showed the strongest inhibitory effect on the electrocatalytic oxidation of guanine at the multi-walled carbon nanotubes modified glassy carbon electrode (CNTs/GC). And the quantitative study of Ag+ based on Ag+–G sensing system gave a linear range from 100nM to 2.5μM with a detection limit of 30nM. In addition, this modified electrode had very good reproducibility and stability. The developed electrochemical method is an ideal tool for Ag+ detection with some merits including remarkable simplicity, low-cost, and no requirement for probe preparation.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><pmid>21807228</pmid><doi>10.1016/j.talanta.2011.06.061</doi><tpages>6</tpages></addata></record> |
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| subjects | Algorithms Analytical chemistry Applied sciences Biosensing Techniques - economics Biosensing Techniques - instrumentation Biosensing Techniques - methods Carbon nanotubes Catalysis Chemistry Chromatographic methods and physical methods associated with chromatography Electrocatalytic oxidation Electrochemical methods Electrochemical Techniques - economics Electrochemical Techniques - instrumentation Electrochemical Techniques - methods Electrodes Environmental Monitoring - methods Exact sciences and technology Fresh Water - analysis Fresh Water - chemistry Gas chromatographic methods General, instrumentation Glass Global environmental pollution Guanine Guanine - analysis Guanine - chemistry Humans Inhibition Kinetics Nanotubes, Carbon - chemistry Oxidation-Reduction Pollution Reproducibility of Results Silver - analysis Silver - chemistry Silver ion Water Pollutants, Chemical - analysis Water Wells - analysis Water Wells - chemistry |
| title | The Ag+–G interaction inhibits the electrocatalytic oxidation of guanine – A novel mechanism for Ag+ detection |
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