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Issue 19, 2017
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Templated electrodeposition of vertically aligned copper oxide nanowire arrays on 3D Ni foam substrates for determination of glucosamine in pharmaceutical caplet samples

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Abstract

A copper oxide nanowire network electrode has been fabricated through an electrodeposition procedure using mesoporous silica film as the template on Ni foam. The metal oxide nanostructures on Ni foam as a three dimensional electrode provide a very high surface area to the electrode built on a low cost material. These electrode features were considered with X-ray diffraction (XRD), electrochemical impedance spectroscopy (EIS) and field emission scanning electron microscopy (FE-SEM). The electrochemical properties of the electrodes have also been studied. The prepared electrode was applied as a glucosamine sensor. The presented sensor possesses a high electrochemically active surface area and demonstrates high current density for glucosamine electro-oxidation. The presented sensor has a wide dynamic range of four orders of magnitude to glucosamine in two linear ranges from 1.45 μM to 0.32 mM and 0.32 mM to 36.4 mM, with a high sensitivity of 9.23 mA mM−1 cm−2 in the first range and 1.85 mA mM−1 cm−2 in the second range and a low practical detection limit of 0.32 μM. It also showed outstanding long-term stability, good reproducibility and accurate measurement in the pharmaceutical sample.

Graphical abstract: Templated electrodeposition of vertically aligned copper oxide nanowire arrays on 3D Ni foam substrates for determination of glucosamine in pharmaceutical caplet samples

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Publication details

The article was received on 25 Mar 2017, accepted on 10 Apr 2017 and first published on 11 Apr 2017


Article type: Paper
DOI: 10.1039/C7AY00799J
Citation: Anal. Methods, 2017,9, 2845-2852
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    Templated electrodeposition of vertically aligned copper oxide nanowire arrays on 3D Ni foam substrates for determination of glucosamine in pharmaceutical caplet samples

    M. A. Kamyabi and N. Hajari, Anal. Methods, 2017, 9, 2845
    DOI: 10.1039/C7AY00799J

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