A Simple, Stable and Picomole Level Lead Sensor Fabricated on DNA-based Carbon Hybridized TiO2 Nanotube Arrays
An electrochemical lead sensor is developed on DNA-based vertically aligned conductive carbon hybridized TiO2 nanotube arrays (DNA/C-TiO2 NTs). The designed DNA/C-TiO2 NTs sensor is superior in determination of lead with high sensitivity, selectivity and repeatability, as well as wide pH adaptabilit...
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| Veröffentlicht in: | Environmental science & technology 2010-06, Vol.44 (11), p.4241-4246 |
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| container_issue | 11 |
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| container_title | Environmental science & technology |
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| creator | Liu, Meichuan Zhao, Guohua Tang, Yiting Yu, Zhimin Lei, Yanzhu Li, Mingfang Zhang, Yanan Li, Dongming |
| description | An electrochemical lead sensor is developed on DNA-based vertically aligned conductive carbon hybridized TiO2 nanotube arrays (DNA/C-TiO2 NTs). The designed DNA/C-TiO2 NTs sensor is superior in determination of lead with high sensitivity, selectivity and repeatability, as well as wide pH adaptability, fast electro-accumulation capacity for lead and easy regeneration. Such remarkable characteristics for lead sensing are attributed to the immobilization of abundant target biomolecules, DNA, and the enhanced bioelectrochemical activity. The controllable carbon hybridization of the TiO2 NTs increases the conductivity of the electrode, while retaining the tubular structure, biocompatibility, and hydrophilicity. The results show that the lead sensor possesses a wide linear calibration ranging from 0.01 to 160 nM with the detection limitation at a picomole level (3.3 pM). The application of the present sensor is realized for determination of Pb2+ in real water samples. |
| doi_str_mv | 10.1021/es1003507 |
| format | Article |
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The designed DNA/C-TiO2 NTs sensor is superior in determination of lead with high sensitivity, selectivity and repeatability, as well as wide pH adaptability, fast electro-accumulation capacity for lead and easy regeneration. Such remarkable characteristics for lead sensing are attributed to the immobilization of abundant target biomolecules, DNA, and the enhanced bioelectrochemical activity. The controllable carbon hybridization of the TiO2 NTs increases the conductivity of the electrode, while retaining the tubular structure, biocompatibility, and hydrophilicity. The results show that the lead sensor possesses a wide linear calibration ranging from 0.01 to 160 nM with the detection limitation at a picomole level (3.3 pM). The application of the present sensor is realized for determination of Pb2+ in real water samples.</description><identifier>ISSN: 0013-936X</identifier><identifier>EISSN: 1520-5851</identifier><identifier>DOI: 10.1021/es1003507</identifier><identifier>CODEN: ESTHAG</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>Applied sciences ; Environmental Measurements Methods ; Exact sciences and technology ; Pollution</subject><ispartof>Environmental science & technology, 2010-06, Vol.44 (11), p.4241-4246</ispartof><rights>Copyright © 2010 American Chemical Society</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/es1003507$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/es1003507$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,780,784,27076,27924,27925,56738,56788</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=22852460$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Liu, Meichuan</creatorcontrib><creatorcontrib>Zhao, Guohua</creatorcontrib><creatorcontrib>Tang, Yiting</creatorcontrib><creatorcontrib>Yu, Zhimin</creatorcontrib><creatorcontrib>Lei, Yanzhu</creatorcontrib><creatorcontrib>Li, Mingfang</creatorcontrib><creatorcontrib>Zhang, Yanan</creatorcontrib><creatorcontrib>Li, Dongming</creatorcontrib><title>A Simple, Stable and Picomole Level Lead Sensor Fabricated on DNA-based Carbon Hybridized TiO2 Nanotube Arrays</title><title>Environmental science & technology</title><addtitle>Environ. 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Sci. Technol</addtitle><date>2010-06-01</date><risdate>2010</risdate><volume>44</volume><issue>11</issue><spage>4241</spage><epage>4246</epage><pages>4241-4246</pages><issn>0013-936X</issn><eissn>1520-5851</eissn><coden>ESTHAG</coden><abstract>An electrochemical lead sensor is developed on DNA-based vertically aligned conductive carbon hybridized TiO2 nanotube arrays (DNA/C-TiO2 NTs). The designed DNA/C-TiO2 NTs sensor is superior in determination of lead with high sensitivity, selectivity and repeatability, as well as wide pH adaptability, fast electro-accumulation capacity for lead and easy regeneration. Such remarkable characteristics for lead sensing are attributed to the immobilization of abundant target biomolecules, DNA, and the enhanced bioelectrochemical activity. The controllable carbon hybridization of the TiO2 NTs increases the conductivity of the electrode, while retaining the tubular structure, biocompatibility, and hydrophilicity. The results show that the lead sensor possesses a wide linear calibration ranging from 0.01 to 160 nM with the detection limitation at a picomole level (3.3 pM). The application of the present sensor is realized for determination of Pb2+ in real water samples.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><doi>10.1021/es1003507</doi><tpages>6</tpages></addata></record> |
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| ispartof | Environmental science & technology, 2010-06, Vol.44 (11), p.4241-4246 |
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| source | American Chemical Society Journals |
| subjects | Applied sciences Environmental Measurements Methods Exact sciences and technology Pollution |
| title | A Simple, Stable and Picomole Level Lead Sensor Fabricated on DNA-based Carbon Hybridized TiO2 Nanotube Arrays |
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