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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 (Engelska)Ingår i: MATERIALS EXPRESS, ISSN 2158-5849, Vol. 5, nr 5, s. 437-444Artikel i tidskrift (Refereegranskat) 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.

Ort, förlag, år, upplaga, sidor
AMER SCIENTIFIC PUBLISHERS , 2015. Vol. 5, nr 5, s. 437-444
Nyckelord [en]
Cobalt Oxide Nanostructures; Glycine; Nanoflakes; Cyclic Voltammetry
Nationell ämneskategori
Elektroteknik och elektronik
Identifikatorer
URN: urn:nbn:se:liu:diva-120638DOI: 10.1166/mex.2015.1252ISI: 000358270500007OAI: oai:DiVA.org:liu-120638DiVA, id: diva2:847602
Anmärkning

Funding Agencies|Higher Education Commission, Islamabad, Pakistan

Tillgänglig från: 2015-08-20 Skapad: 2015-08-20 Senast uppdaterad: 2015-08-20

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Willander, Magnus

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