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Article: Study of the growth mechanisms of nanoporous Ag flowers for non-enzymatic glucose detection

TitleStudy of the growth mechanisms of nanoporous Ag flowers for non-enzymatic glucose detection
Authors
Keywordsapplications in non-enzymatic glucose detection
electrochemical method to fabricate nanoporous Ag flowers
high sensitivity and selectivity
low detection limit
proper model to study the growth mechanism
Issue Date2018
PublisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/journals/nano
Citation
Nanotechnology, 2018, v. 29 n. 50, p. article no. 505501 How to Cite?
AbstractHighly sensitive and selective non-enzymatic glucose detection was developed using nanoporous Ag flowers on a Ni substrate. The cyclic scanning electrodeposition (CSE) method was used to fabricate Ag flowers on a Ni substrate in an alkaline electrolyte. The nanoporous Ag flowers were then formed by repeated CSE in NaOH. The growth mechanisms of the nanoporous Ag flowers were systematically studied, and these mechanisms can be extended to the formation of other metal, bimetal or metal oxide. The synthesized three-dimensional nanoporous Ag flowers on the Ni substrate were used in the electro-oxidation of glucose, demonstrating a wide linear range (0.1 μM to 1 mM), fast response time (<2 s), low detection limit of 0.1 μM (S/N = 3) and a high sensitivity to detect glucose in the presence of uric acid (UA) and ascorbic acid (AA) at the level of their physiological concentrations. Apart from the nanoporous Ag flowers, the formation of a NiO thin layer on the Ni substrate during CSE also contributed to the high selectivity. This work indicates the potential for developing a fast, sensitive, selective and stable electrochemical sensor for diabetes diagnosis.
Persistent Identifierhttp://hdl.handle.net/10722/279454
ISSN
2019 Impact Factor: 3.551
2015 SCImago Journal Rankings: 1.196

 

DC FieldValueLanguage
dc.contributor.authorCHEN, J-
dc.contributor.authorLiu, C-
dc.contributor.authorHuang, YT-
dc.contributor.authorLee, H-
dc.contributor.authorFeng, SP-
dc.date.accessioned2019-11-01T07:17:40Z-
dc.date.available2019-11-01T07:17:40Z-
dc.date.issued2018-
dc.identifier.citationNanotechnology, 2018, v. 29 n. 50, p. article no. 505501-
dc.identifier.issn0957-4484-
dc.identifier.urihttp://hdl.handle.net/10722/279454-
dc.description.abstractHighly sensitive and selective non-enzymatic glucose detection was developed using nanoporous Ag flowers on a Ni substrate. The cyclic scanning electrodeposition (CSE) method was used to fabricate Ag flowers on a Ni substrate in an alkaline electrolyte. The nanoporous Ag flowers were then formed by repeated CSE in NaOH. The growth mechanisms of the nanoporous Ag flowers were systematically studied, and these mechanisms can be extended to the formation of other metal, bimetal or metal oxide. The synthesized three-dimensional nanoporous Ag flowers on the Ni substrate were used in the electro-oxidation of glucose, demonstrating a wide linear range (0.1 μM to 1 mM), fast response time (<2 s), low detection limit of 0.1 μM (S/N = 3) and a high sensitivity to detect glucose in the presence of uric acid (UA) and ascorbic acid (AA) at the level of their physiological concentrations. Apart from the nanoporous Ag flowers, the formation of a NiO thin layer on the Ni substrate during CSE also contributed to the high selectivity. This work indicates the potential for developing a fast, sensitive, selective and stable electrochemical sensor for diabetes diagnosis.-
dc.languageeng-
dc.publisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/journals/nano-
dc.relation.ispartofNanotechnology-
dc.rightsNanotechnology. Copyright © Institute of Physics Publishing.-
dc.rightsThis is an author-created, un-copyedited version of an article published in [insert name of journal]. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://dx.doi.org/[insert DOI].-
dc.subjectapplications in non-enzymatic glucose detection-
dc.subjectelectrochemical method to fabricate nanoporous Ag flowers-
dc.subjecthigh sensitivity and selectivity-
dc.subjectlow detection limit-
dc.subjectproper model to study the growth mechanism-
dc.titleStudy of the growth mechanisms of nanoporous Ag flowers for non-enzymatic glucose detection-
dc.typeArticle-
dc.identifier.emailLiu, C: willmole@hku.hk-
dc.identifier.emailHuang, YT: ythuang@connect.hku.hk-
dc.identifier.emailLee, H: hslee611@hku.hk-
dc.identifier.emailFeng, SP: hpfeng@hku.hk-
dc.identifier.authorityFeng, SP=rp01533-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1088/1361-6528/aae363-
dc.identifier.pmid30240367-
dc.identifier.scopuseid_2-s2.0-85055157459-
dc.identifier.hkuros308566-
dc.identifier.volume29-
dc.identifier.issue50-
dc.identifier.spagearticle no. 505501-
dc.identifier.epagearticle no. 505501-
dc.publisher.placeUnited Kingdom-

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