| A novel bio-electrochemical ascorbic acid sensor modified with Cu(4)(OH)(6)SO(4) nanorods. | |
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MedLine Citation:
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PMID: 20949190 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Cu(4)(OH)(6)SO(4) (brochantite) is an undesirable oxidation product of copper-bearing sulfides, and it is seldom considered to be biologically and electrochemically active. In this paper, we report that Cu(4)(OH)(6)SO(4) nanoparticles in fact possess an intrinsic electrocatalytic activity, which is explored as a biosensing material to oxidize l-ascorbic acid (AA). The Cu(4)(OH)(6)SO(4) nanorod modified biosensor exhibits excellent performance for the determination of l-ascorbic acid with a response time of less than 8 s, a linear range between 0.017 and 6 mM, and a sensitivity of 17.53 μA mM(-1). A high selectivity towards the oxidation of AA in the presence of dopamine (DA) and acetyl aminophenol (AP) is also observed at their maximum physiological concentrations. The good analytical performance and long-term stability, low cost and straightforward fabrication method made the Cu(4)(OH)(6)SO(4) nanomaterials promising for the development of effective electrochemical sensors for a wide range of potential applications in medicine, biotechnology and environmental chemistry. |
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Authors:
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Cao Xia; Wang Ning |
Publication Detail:
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Type: Journal Article Date: 2010-10-14 |
Journal Detail:
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Title: The Analyst Volume: 136 ISSN: 1364-5528 ISO Abbreviation: Analyst Publication Date: 2011 Jan |
Date Detail:
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Created Date: 2010-12-21 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0372652 Medline TA: Analyst Country: England |
Other Details:
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Languages: eng Pagination: 288-92 Citation Subset: IM |
Affiliation:
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School of Material Science and Engineering, Jiangsu University of Science and Technology, Jiangsu, 212003, China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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