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The Synthesis of Functional Cobalt Oxide Nanostructures, and their Sensitive Glucose Sensing Application
Chinese Academic Science, Peoples R China; University of Sindh, Pakistan.
University of Sindh, Pakistan.
University of Sindh, Pakistan.
Chinese Academic Science, Peoples R China.
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2017 (English)In: Electroanalysis, ISSN 1040-0397, E-ISSN 1521-4109, Vol. 29, no 1, 213-222 p.Article in journal (Refereed) Published
Abstract [en]

In this study, a novel approach is adapted for the synthesis of new nanostructures of cobalt oxide (Co3O4) by low temperature aqueous chemical growth method in the presence of water soluble amino acids such as L-arginine, L-aspartic acid, L-isoleucine, L-leucine, Lserine and L-threonine. The synthesized nanostructures were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and high resolution transmission electron microscopy (HRTEM). The nanostructures exhibit well defined morphology and are of high purity. To explore the potential application of the prepared nanostructures of cobalt oxide, the non-enzymatic glucose sensor is developed by modifying the glassy carbon electrode. Serine assisted cobalt oxide nanostructures showed excellent sensitivity of 4169.00 mu A/mMcm(2), wide linear range of 0.01 mM to 20 mM and detection limit was estimated as 0.001 mM (S/N= 3). The analytical parameters for the serine assisted cobalt oxide nanostructures based glucose sensor were evaluated and it was found that the sensor is highly selective, reproducible, repeatable, reversible, and stable. Finally, the practical application of the serine assisted cobalt oxide nanostructures based glucose sensor was examined by measuring the glucose concentrations from real human blood samples.

Place, publisher, year, edition, pages
WILEY-V C H VERLAG GMBH , 2017. Vol. 29, no 1, 213-222 p.
Keyword [en]
Cobalt oxide nanostructures; L-serine amino acid; cyclic voltammetry; amperometric technique; non-enzymatic glucose sensor
National Category
Analytical Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-136078DOI: 10.1002/elan.201600286ISI: 000394995900029OAI: oai:DiVA.org:liu-136078DiVA: diva2:1084755
Conference
16th International Conference on Electroanalysis (ESEAC)
Note

Funding Agencies|National Natural Science Foundation of China [21550110195, 21550110196, 21275139]; Chinese Academy of Sciences Presidents International Fellowship Initiative [2015PM010]; Jilin Provincial Strategic Economic Infrastructure Adjustment fund [2014Y077]

Available from: 2017-03-27 Created: 2017-03-27 Last updated: 2017-03-27

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CiteExportLink to record
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