High-Precision Nonenzymatic Electrochemical Glucose Sensing Based on CNTs/CuO Nanocomposite

Geetha, Mithra; Maurya, Muni Raj; Al‐Maadeed, Somaya; Muthalif, Asan Abdul; Sadasivuni, Kishor Kumar

doi:10.1007/s11664-022-09727-z

Cited by 15 publications

(6 citation statements)

References 64 publications

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“…26-1076 also confirms the peaks of CNTs. The structural analysis agreed with the findings of Geetha et al 32 The S 10 ZC 2 and S 15 ZC 2 -decorated fabrics also revealed two peaks at 31.9 and 34.7°, which were perceived as the (100) and (002) planes, respectively, according to JCPDS no. 36-1451.…”

Section: Analysis Of Functional Groupssupporting

confidence: 89%

Dielectric Barrier Discharge Plasma Processing and Sr-Doped ZnO/CNT Photocatalyst Decoration of Cotton Fabrics for Self-Cleaning Application

Alsaiari,

Afzal,

Sultan

et al. 2023

ACS Omega

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Nonthermal plasma processing is a chemical-free and environmentally friendly technique to enhance the self-cleaning activity of nanoparticle-coated cotton fabrics. In this research, Sr-doped ZnO/ carbon nanotube (CNT) photocatalysts, namely, S 10 ZC 2 , S 15 ZC 2 , and S 20 ZC 2 with different Sr doping concentrations, were synthesized using the sol−gel method and coated on plasma-functionalized fabric to perform the self-cleaning tests. The fabrics were treated with dielectric barrier discharge plasma in an open environment for 3 min to achieve a stable coating of nanoparticles. The energy band gap of the photocatalyst decreased with an increase in the level of Sr doping. The band gap of S 10 ZC 2 , S 15 ZC 2 , and S 20 ZC 2 photocatalysts was estimated to be 2.85, 2.78, and 2.5 eV, respectively. The hexagonal wurtzite structure of ZnO was observed on the fabric surface composited with CNTs and Sr. The S 20 ZC 2 photocatalyst showed better homogeneity and photocatalytic response on the fabric when compared with S 10 ZC 2 -and S 15 ZC 2 -coated fabrics. The S 20 ZC 2 photocatalyst showed 89% dye degradation efficiency after 4 h of light exposure in methylene blue solution, followed by S 15 ZC 2 (84%) and S 10 ZC 2 (80%) photocatalysts.

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Section: Analysis Of Functional Groupssupporting

confidence: 89%

Dielectric Barrier Discharge Plasma Processing and Sr-Doped ZnO/CNT Photocatalyst Decoration of Cotton Fabrics for Self-Cleaning Application

Alsaiari,

Afzal,

Sultan

et al. 2023

ACS Omega

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“…Wide linear range of 0.001-5.50 mM, a correlation value of 0.9978, and a LOD of 0.1 μM were also features of the developed non-enzymatic glucose sensor. Additionally, Table 1 [28][29][30][31][32][33][34][35][36][37][38][39][40][41] compares the sensing performance of present modified sensing electrode to other non-enzymatic glucose sensors that have been previously published. CuO/Ag/NiO-GCE demonstrated great sensitivity (2895.3 μA mM −1 cm −2 ) in a broad linear range (0.001 to 5.50 mM), which is higher than previously reported values for glucose sensing, as shown in the table.…”

Section: Mechanism Of Actionmentioning

confidence: 99%

Non-enzymatic glucose sensors composed of trimetallic CuO/Ag/NiO based composite materials

Naikoo

Bano

Arshad

et al. 2023

Sci Rep

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The escalating risk of diabetes and its consequential impact on cardiac, vascular, ocular, renal, and neural systems globally have compelled researchers to devise cost-effective, ultrasensitive, and reliable electrochemical glucose sensors for the early diagnosis of diabetes. Herein, we utilized advanced composite materials based on nanoporous CuO, CuO/Ag, and CuO/Ag/NiO for glucose detection. The crystalline structure and surface morphology of the synthesized materials were ascertained via powder X-ray diffraction (P-XRD), energy dispersive X-ray (EDX) spectroscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis. The electro-catalytic properties of the manufactured electrode materials for glucose electro-oxidation in alkaline conditions were probed using cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques. Notably, the CuO/Ag/NiO electrode material exhibited exceptional performance as a non-enzymatic glucose sensor, displaying a linear range of 0.001–5.50 mM, an ultrahigh sensitivity of 2895.3 μA mM−1 cm−2, and a low detection limit of 0.1 μM. These results suggest that nanoporous CuO/Ag/NiO-based composite materials are a promising candidate for early diagnosis of hyperglycemia and treatment of diabetes. Furthermore, non-enzymatic glucose sensors may pave the way for novel glucometer markets.

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“…Due to its electron transport capabilities, the composite material showed excellent sensitivity and stability for glucose detection in artificial sweat. The catalytic performance of the sensor had a detection limit of 3.90 µM and a sensitivity of 15.3 mA cm −2 uM −1 [48]. Cuara et al presented a highly sensitive and selective glucose sensor based on mole ratios of 1:0.2 weight ratios of graphene nanoplatelets to Cu 2 O and CuO composites.…”

Section: Cuo/cmentioning

confidence: 99%

Exploring Copper Oxide and Copper Sulfide for Non-Enzymatic Glucose Sensors: Current Progress and Future Directions

Miya,

Machogo-Phao,

Ntsendwana

2023

Micromachines

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Millions of people worldwide are affected by diabetes, a chronic disease that continuously grows due to abnormal glucose concentration levels present in the blood. Monitoring blood glucose concentrations is therefore an essential diabetes indicator to aid in the management of the disease. Enzymatic electrochemical glucose sensors presently account for the bulk of glucose sensors on the market. However, their disadvantages are that they are expensive and dependent on environmental conditions, hence affecting their performance and sensitivity. To meet the increasing demand, non-enzymatic glucose sensors based on chemically modified electrodes for the direct electrocatalytic oxidation of glucose are a good alternative to the costly enzymatic-based sensors currently on the market, and the research thereof continues to grow. Nanotechnology-based biosensors have been explored for their electronic and mechanical properties, resulting in enhanced biological signaling through the direct oxidation of glucose. Copper oxide and copper sulfide exhibit attractive attributes for sensor applications, due to their non-toxic nature, abundance, and unique properties. Thus, in this review, copper oxide and copper sulfide-based materials are evaluated based on their chemical structure, morphology, and fast electron mobility as suitable electrode materials for non-enzymatic glucose sensors. The review highlights the present challenges of non-enzymatic glucose sensors that have limited their deployment into the market.

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High-Precision Nonenzymatic Electrochemical Glucose Sensing Based on CNTs/CuO Nanocomposite

Cited by 15 publications

References 64 publications

Dielectric Barrier Discharge Plasma Processing and Sr-Doped ZnO/CNT Photocatalyst Decoration of Cotton Fabrics for Self-Cleaning Application

Dielectric Barrier Discharge Plasma Processing and Sr-Doped ZnO/CNT Photocatalyst Decoration of Cotton Fabrics for Self-Cleaning Application

Non-enzymatic glucose sensors composed of trimetallic CuO/Ag/NiO based composite materials

Exploring Copper Oxide and Copper Sulfide for Non-Enzymatic Glucose Sensors: Current Progress and Future Directions

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