A high-performance nonenzymatic glucose sensor made of CuO–SWCNT nanocomposites

Dung, Nguyen Quoc; Patil, Dewyani; Jung, Hyuck; Kim, Dojin

doi:10.1016/j.bios.2012.10.044

Cited by 132 publications

(26 citation statements)

References 35 publications

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“…It is clear that the sensitivity of our present electrode is largely improved and the integrative performance (sensitivity, detection limit and liner range) is also satisfactory. Although the detection limit of the 3D porous ZnO–CuO HNCs electrode (20 min) isn't the lowest one comparing to the electrodes as listed in Table 2 , such as CuO SWCNTs and CuO NFs based electrodes 9 37 , some particular advantages of the as prepared electrode in this work should be mentioned. First, from the view of practical application, the planar electrode based on FTO glass can easily integrate with the peripheral circuit and effectively reduce the volume of the circuit compared with the electrodes modified on the glassy carbon electrode.…”

Section: Resultsmentioning

confidence: 86%

“…As a p-type semiconductor with high chemical activity and nontoxic nature, CuO has been a widely investigated material for using as an enzymeless glucose biosensor due to its outstanding redox behavior 6 7 8 9 . With advance of the related research, 1D CuO based hierarchically nanostructure are considered to be promising enzymeless amperometric candidate to effectively detect glucose with higher selectivity and sensitivity 10 11 , because of their high surface to volume ratios and special physicochemical properties.…”

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confidence: 99%

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Ultrasensitive non-enzymatic glucose sensor based on three-dimensional network of ZnO-CuO hierarchical nanocomposites by electrospinning

Zhou

Song

et al. 2014

Sci Rep

164

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Three-dimensional (3D) porous ZnO–CuO hierarchical nanocomposites (HNCs) nonenzymatic glucose electrodes with different thicknesses were fabricated by coelectrospinning and compared with 3D mixed ZnO/CuO nanowires (NWs) and pure CuO NWs electrodes. The structural characterization revealed that the ZnO–CuO HNCs were composed of the ZnO and CuO mixed NWs trunk (~200 nm), whose outer surface was attached with small CuO nanoparticles (NPs). Moreover, a good synergetic effect between CuO and ZnO was confirmed. The nonenzymatic biosensing properties of as prepared 3D porous electrodes based on fluorine doped tin oxide (FTO) were studied and the results indicated that the sensing properties of 3D porous ZnO–CuO HNCs electrodes were significantly improved and depended strongly on the thickness of the HNCs. At an applied potential of + 0.7 V, the optimum ZnO–CuO HNCs electrode presented a high sensitivity of 3066.4 μAmM−1cm−2, the linear range up to 1.6 mM, and low practical detection limit of 0.21 μM. It also showed outstanding long term stability, good reproducibility, excellent selectivity and accurate measurement in real serum sample. The formation of special hierarchical heterojunction and the well-constructed 3D structure were the main reasons for the enhanced nonenzymatic biosensing behavior.

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Section: Resultsmentioning

confidence: 86%

mentioning

confidence: 99%

Ultrasensitive non-enzymatic glucose sensor based on three-dimensional network of ZnO-CuO hierarchical nanocomposites by electrospinning

Zhou

Song

et al. 2014

Sci Rep

164

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“… Electrocatalyst Linear range (mM) Detection Limit (mM) Sensitivity (μA mM −1 cm −2 ) pH Ref. CuO nanosheets 0.5–10 1 × 10 −4 520 13 47 CuO nanospheres 0–2.56 1 × 10 −3 405 13 48 CuO nanoflowers 0–5 1.71 × 10 −3 2657 13 49 Carnation-like CuO Hierarchical Nanostructures 0–5.5 98 × 10 −6 3150 13.2 50 Flower-like CuO hierarchical nanostructures 4.5 × 10 −2 –1.3 × 10 −1 6.87 × 10 −3 1710 13 51 CuO nanorods 0–5 220 × 10 −6 1834 14 52 Sandwich-structured CuO 0–3.2 1 × 10 −3 5343 13 53 Cu/Cu2O/CuO ternary composite hollow spheres 0–0.1 0.39 × 10 −3 8726 13 54 CeO2@CuO core shell nanostructure 1–8.9 0.019 × 10 −3 3319 13 55 Nanocomposites of CuO and single-wall carbon nanotubes 5 × 10 −5 –1.8 50 × 10 −6 1610 13 56 CuO nanoparticles 0.21 × 10 −3 –12 0.21 × 10 −3 …”

Section: Resultsmentioning

confidence: 99%

MOMSense: Metal-Oxide-Metal Elementary Glucose Sensor

Abunahla

Mohammad

Alazzam

et al. 2019

Sci Rep

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In this paper, we present a novel Pt/CuO/Pt metal-oxide-metal (MOM) glucose sensor. The devices are fabricated using a simple, low-cost standard photolithography process. The unique planar structure of the device provides a large electrochemically active surface area, which acts as a nonenzymatic reservoir for glucose oxidation. The sensor has a linear sensing range between 2.2 mM and 10 mM of glucose concentration, which covers the blood glucose levels for an adult human. The distinguishing property of this sensor is its ability to measure glucose at neutral pH conditions (i.e. pH = 7). Furthermore, the dilution step commonly needed for CuO-based nonenzymatic electrochemical sensors to achieve an alkaline medium, which is essential to perform redox reactions in the absence of glucose oxidase, is eliminated, resulting in a lower-cost and more compact device.

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“…The analytical performance of the developed sensor was compared with other nonenzymatic electrochemical glucose sensors reported [27][28][29][30][31][32][33][34][35][36][37][38][39]. Features such as linearity, sensitivity, applied potential and detection limit of the sensors are tabulated (Table 1).…”

Section: Interference Studymentioning

confidence: 99%

Highly sensitive and wide-range nonenzymatic disposable glucose sensor based on a screen printed carbon electrode modified with reduced graphene oxide and Pd-CuO nanoparticles

et al. 2015

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A nanocomposite consisting of reduced graphene oxide decorated with palladium-copper oxide nanoparticles (Pd-CuO/rGO) was synthesized by single-step chemical reduction. The morphology and crystal structure of the nanocomposite were characterized by field-emission scanning electron microscopy, high resolution transmission electron microscopy and X-ray diffraction analysis. A 3-electrode system was fabricated by screen printing technology and the PdCuO/rGO nanocomposite was dropcast on the carbon working electrode. The catalytic activity towards glucose in 0.2 M NaOH solutions was analyzed by linear sweep voltammetry and amperometry. The steady state current obtained at a constant potential of +0.6 V (vs. Ag/AgCl) showed the modified electrode to possess a wide analytical range (6 μM to 22 mM), a rather low limit of detection (30 nM), excellent sensitivity (3355 μA mM −1 cm −2 ) and good selectivity over commonly interfering species and other sugars including fructose, sucrose and lactose. The sensor was successfully employed to the determination of glucose in blood serum.

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A high-performance nonenzymatic glucose sensor made of CuO–SWCNT nanocomposites

Cited by 132 publications

References 35 publications

Ultrasensitive non-enzymatic glucose sensor based on three-dimensional network of ZnO-CuO hierarchical nanocomposites by electrospinning

Ultrasensitive non-enzymatic glucose sensor based on three-dimensional network of ZnO-CuO hierarchical nanocomposites by electrospinning

MOMSense: Metal-Oxide-Metal Elementary Glucose Sensor

Highly sensitive and wide-range nonenzymatic disposable glucose sensor based on a screen printed carbon electrode modified with reduced graphene oxide and Pd-CuO nanoparticles

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