Issue 19, 2017

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

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

Supplementary files

Article information

Article type
Paper
Submitted
25 Mar 2017
Accepted
10 Apr 2017
First published
11 Apr 2017

Anal. Methods, 2017,9, 2845-2852

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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