A non-enzymatic thermally reduced Cu nanoparticle based graphene-resorcinol benzaldehyde glucose sensor. (February 2015)

• Record Type: Journal Article
• Authors: Khalid, B.; Meng, Q. H.; Cao, B.
• Is Part Of: Materials research innovations. Volume 19:Number 2(2015)
• Page Start: 91
• Page End: 96
• Publication Date: 2015-02
• Subjects: Materials -- Research -- Periodicals; Matériaux -- Recherche -- Périodiques; 620.1105
• DOI: 10.1179/1433075X14Y.0000000219
• Languages: English
• ISSNs: 1432-8917

Abstract

<abstract> <title> <x content-type="archive" xml:space="preserve">Abstract</x> </title> <p>A non-enzymatic graphene based resorcinol–benzaldehyde glucose sensor decorated with copper nanoparticles (Cu NPs) was developed by a fast thermal reduction method. Cu NPs were synthesised by stirring various concentrations of [Cu(NH₃)₂] with graphene based resorcinol–benzaldehyde sheets. Subsequently physically adsorbed Cu²⁺ were thermally reduced under Ar gas. The electrochemical behaviour of Cu NPs based electrodes was investigated by cyclic voltammetry, which shows a very high oxidation of glucose in a neutral solution. All electrodes can be applied for the quantification of glucose with a linear range of 0·30–30·0 μM. The Cu NPs displayed a synergistic effect towards the oxidation of glucose with high stability and selectivity, showing higher oxidation current and negative shift in peak potential. Characterisations were done by X-ray diffraction, thermogravimetric analysis and transmission electron microscopy. Besides, synthesis method is very simple, convenient, and fast, which is promising for the development of non-enzymatic glucose sensors.</p> </abstract>