Synthesis of CuO nanostructures and their application for nonenzymatic glucose sensing

Wang, Xue; Hu, Chenguo; Liu, Hong; Du, Guojun; He, Xiaoshan; Xi, Yunfei

doi:10.1016/j.snb.2009.09.067

Cited by 404 publications

(190 citation statements)

References 27 publications

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“…In addition, the particle size of CuO decreased with decreasing concentration of the K 2 CO 3 The results will also offer many benefits for production of copper/copper oxide nanoparticles in easily and quickly. The prepared CuO nanoflowers can be used to construct the electrode of lithium ion battery, and Cu nanoparticles is an attractive material for conductive paste.…”

Section: Discussionmentioning

confidence: 87%

“…For instance, CuO, is an important p-type transition-metal-oxide semiconductor with a narrow bandgap of 1.2 eV, and it has been widely used as a heterogeneous catalyst, gas sensor, electrode materials for lithiumiron battery, 1,2 and field emission emitter. Moreover, many recent efforts have been directed toward the fabrication of nanocrystalline CuO to enhance its performance [3][4][5][6] and develop new functions. 7,8 Metallic nanoparticles of copper attract attention not only in the scientific field but also in industry because of their application in electronic devices such as printed circuit boards [9][10][11] and multilayer ceramic capacitors.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of copper/copper oxide nanoparticles by solution plasma

Saito

Hosokai

Tsubota

et al. 2011

Journal of Applied Physics

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This paper describes the synthesis of copper/copper oxide nanoparticles via a solution plasma, in which the effect of the electrolyte and electrolysis time on the morphology of the products was mainly examined. In the experiments, a copper wire as a cathode was immersed in an electrolysis solution of a K 2 CO 3 with the concentration from 0.001 to 0.50 M or a citrate buffer (pH ¼ 4.8), and was melted by the local-concentration of current. The results demonstrated that by using the K 2 CO 3 solution, we obtained CuO nanoflowers with many sharp nanorods, the size of which decreased with decreasing the concentration of the solution. Spherical particles of copper with/ without pores formed when the citrate buffer was used. The pores in the copper nanoparticles appeared when the applied voltage changed from 105 V to 130 V, due to the dissolution of Cu 2 O.

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Section: Discussionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Synthesis of copper/copper oxide nanoparticles by solution plasma

Saito

Hosokai

Tsubota

et al. 2011

Journal of Applied Physics

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“…This material has also high potential in several nanodevices applications that include sensors, high critical temperature supper conductors, lithium ion batteries, field emission emitters and catalysts [46][47][48][49][50]. CuO NSs have shown many attractive properties such as; they can easily be grown on various substrates, prepared as different morphologies, low cost, and they are non-toxic.…”

Section: Metal Oxide Semiconductor Nanostructuresmentioning

confidence: 99%

Synthesising Metal Oxide Materials and Their Composite Nanostructures for Sensing and Optoelectronic Device Applications

Khun¹

2015

Linköping Studies in Science and Technology. Dissertations

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Research on nanomaterials has been revolutionized in the last few years because of the attractive properties they have in comparison to the bulk phase of similar materials. These properties are physical, chemical, catalytic and optical. Among these nanomaterials, the metal oxide nanostructures have become of particular interest to scientists for the development of different optical, biochemical and biomedical nanodevices. In the present research work using the advantageous features of nanotechnology, high performance nanodevices for optoelectronics with a wide band gap compound nanostructure and highly sensitive sensor devices have been demonstrated. The nanotechnology is used to fabricate sensitive and precise nanodevices based on nanomaterials for the application of sensing.Among metal oxide nanostructures, ZnO, CuO and NiO are attractive materials because of their unique properties; their high surface area to volume ratio, their energy band gap of 3.37 eV, 1.2 eV and 3.7 eV, respectively, biocompatibility, high electron mobility, fast electron transfer rate and they are environmental-friendly in many applications. When used in sensor devices, nanomaterials have indicated high selectivity for possible use to detect the various analytes even in small volumes. Metal oxide nanostructures have shown to be good for optoelectronic nanodevices because of their electrical characteristics, high optical absorption and low-processing temperature.In this thesis, the synthesis of different morphologies of metal oxide semiconductor nanostructures and their composite using the hydrothermal method are demonstrated for various applications. This thesis is divided into three parts:In the first part of this research work, the fabrication of well-aligned ZnO nanorods using different concentrations of composite seed layer of inorganic and organic materials when using the hydrothermal growth method is presented. The effect of the composite seed layer on the i Abstract alignment, density and optical properties of the grown ZnO nanorods is investigated (paper I).Utilizing the advantage of ZnO nanostructure, a comparative study of ZnO nanorods and thin films for chemical and biosensing application was carried out. The ZnO nanorods and thin films were functionalized with strontium ionophore membrane, immobilized the galactose oxidase and lactate oxidase for determining the strontium ions, D-galactose and L-lactic acid, respectively (paper II).In the second part, the effects of different urea concentrations on the morphology of CuO nanostructures is studied as described in paper III. Moreover, CuO nanoflowers were functionalized with cadmium ion ionophore for the detection of Cd ions, while CuO nanosheets were grown by the low temperature growth method and were used for the development of a nonenzymatic glucose sensor, respectively (Paper IV).In the last part of this thesis, composite nanostructures of CuO/ZnO and NiO/ZnO were applied to develop dopamine sensor and fast sensitive UV photodetector, respectively. A nanohybrid of C...

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“…The nano-interface possesses high surface area-to-volume ratio, fast and direct electron transfer, desirable electrical and mechanical properties, as well as the capability of adsorbing biomolecules (Dong and Chen 2002;Asefa et al 2009). A majority of non-enzymatic sensors have employed metallic nanoparticles such as platinum (Yuan et al 2005;Cao et al 2007), gold (Ma et al 2009), nickel (Salimi et al 2004;Sue et al 2008), copper (Sattayasamitsathit et al 2009;Chen et al 2012), bimetallic systems such as Pt-Pb and metal oxides such as CuO (Reitz et al 2008;Wang et al 2010), ZnO (Lei et al 2010), TiO 2 (Lo et al 2008) alone or in combination with carbon nanostructures such as single-walled (Su et al 2010) and multi-walled carbon nanotubes , graphene (Zhu et al 2010), etc. The use of carbon nanotubes along with metallic nanoparticles have been found to enhance the electron transfer, while the catalysis is performed by the metallic centres.…”

Section: Introductionmentioning

confidence: 99%

Enzyme-free monitoring of glucose utilization in stimulated macrophages using carbon nanotube-decorated electrochemical sensor

et al. 2017

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Carbon nanotubes (CNTs) have been extensively explored for a diverse range of applications due to their unique electrical and mechanical properties. CNT-incorporated electrochemical sensors have exhibited enhanced sensitivity towards the analyte molecule due to the excellent electron transfer properties of CNTs. In addition, CNTs possess a large surface area-to-volume ratio that favours the adhesion of analyte molecules as well as enhances the electroactive area. Most of the electrochemical sensors have employed CNTs as a nano-interface to promote electron transfer and as an immobilization matrix for enzymes. The present work explores the potential of CNTs to serve as a catalytic interface for the enzymeless quantification of glucose. The figure of merits for the enzymeless sensor was comparable to the performance of several enzyme-based sensors reported in literature. The developed sensor was successfully employed to determine the glucose utilization of unstimulated and stimulated macrophages. The significant difference in the glucose utilization levels in activated macrophages and quiescent cells observed in the present investigation opens up the possibilities of new avenues for effective medical diagnosis of inflammatory disorders.

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Synthesis of CuO nanostructures and their application for nonenzymatic glucose sensing

Cited by 404 publications

References 27 publications

Synthesis of copper/copper oxide nanoparticles by solution plasma

Synthesis of copper/copper oxide nanoparticles by solution plasma

Synthesising Metal Oxide Materials and Their Composite Nanostructures for Sensing and Optoelectronic Device Applications

Enzyme-free monitoring of glucose utilization in stimulated macrophages using carbon nanotube-decorated electrochemical sensor

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