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Glycine-assisted preparation of Co3O4 nanoflakes with enhanced performance for non-enzymatic glucose sensing
University of Bristol, England; University of Sindh, Pakistan.
University of Sindh, Pakistan.
Univ Sindh, Natl Ctr Excellence Analyt Chem, Jamshoro 76080, Pakistan.
Mehran University of Engn and Technology, Pakistan.
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2015 (English)In: MATERIALS EXPRESS, ISSN 2158-5849, Vol. 5, no 5, 437-444 p.Article in journal (Refereed) Published
Abstract [en]

In this study a simple, inexpensive and efficient route is proposed to synthesise attractive cobalt oxide (Co3O4) nanostructures using glycine as an effective growth controller and regulator. The as-synthesised Co3O4 nanostructures were observed to possess unique nanoflake shape morphological features with highly dense distribution. The formation of Co3O4 nanoflakes (Co3O4 NFKs) was elaborately explored using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and Scanning electron microscopy (SEM) respectively. The unique Co3O4 nanoflakes were known to possess excellent electro-catalytic potential for the oxidation of glucose in alkaline medium. This potential property allowed successful development of highly sensitive (1180 mu A mM(-1) cm(-2)), selective and stable non-enzymatic glucose sensor. In addition, the developed sensor had a wide working range (0.1-5.0 mM), low limit of detection (0.7 mu M), and excellent reproducibility, besides the capability of analysing real blood glucose samples.

Place, publisher, year, edition, pages
AMER SCIENTIFIC PUBLISHERS , 2015. Vol. 5, no 5, 437-444 p.
Keyword [en]
Cobalt Oxide Nanostructures; Glycine; Nanoflakes; Cyclic Voltammetry
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-120638DOI: 10.1166/mex.2015.1252ISI: 000358270500007OAI: oai:DiVA.org:liu-120638DiVA: diva2:847602
Note

Funding Agencies|Higher Education Commission, Islamabad, Pakistan

Available from: 2015-08-20 Created: 2015-08-20 Last updated: 2015-08-20

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Willander, Magnus
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