2021
DOI: 10.1038/s41598-020-79460-2
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Highly sensitive non-enzymatic electrochemical glucose sensor based on dumbbell-shaped double-shelled hollow nanoporous CuO/ZnO microstructures

Abstract: A high-performance non-enzymatic glucose sensor based on hybrid metal-oxides is proposed. Dumbbell-shaped double-shelled hollow nanoporous CuO/ZnO microstructures (CuO/ZnO-DSDSHNM) were prepared via the hydrothermal method using pluronic F-127 as a surfactant. This structure is studied by various physicochemical characterizations such as scanning electron microscopy, X-ray diffraction spectroscopy, inductively coupled plasma atomic emission spectroscopy, elemental mapping techniques, X-ray photoelectron spectr… Show more

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Cited by 60 publications
(28 citation statements)
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“…The sensor also gave reproducible results within 3 s. In addition, the sensor displayed great selectivity to glucose molecules against ascorbic acid, sucrose, and dopamine. In another study by Haghparas et al (2021), CuO/ZnO microstructures were developed that exhibited a wide dynamic range of 500 nM to 100 mM and high sensitivity of 1,536.80 μA mM −1 cm −2 . The sensor displayed a LOD of 357.5 nM and gave rapid results in 1.6 s. Likewise, similar observations were recorded in a study by Awais et al (2021).…”
Section: Zinc-based Negsmentioning
confidence: 99%
See 1 more Smart Citation
“…The sensor also gave reproducible results within 3 s. In addition, the sensor displayed great selectivity to glucose molecules against ascorbic acid, sucrose, and dopamine. In another study by Haghparas et al (2021), CuO/ZnO microstructures were developed that exhibited a wide dynamic range of 500 nM to 100 mM and high sensitivity of 1,536.80 μA mM −1 cm −2 . The sensor displayed a LOD of 357.5 nM and gave rapid results in 1.6 s. Likewise, similar observations were recorded in a study by Awais et al (2021).…”
Section: Zinc-based Negsmentioning
confidence: 99%
“…In another recent study by the same author a NEGS was developed using CuO and ZnO microstructures. This sensor gave a very wide dynamic range of 500 nM—100 mM, sensitivity of 1,536.80 μA mM −1 cm −2 and a LOD of 357.5 nM ( Haghparas et al, 2021 ). In addition, the sensor showed a rapid response time of 1.6 s and displayed a prolonged shelf-life, great stability, reproducibility, and high selectivity for glucose molecules.…”
Section: Electrochemical Detection Of Glucose On Co Ni Zn Cu Fe Mn Ti Ir Rh Pt Pd Au Based Negsmentioning
confidence: 99%
“…Metal oxide nanomaterials have been used in the work of Haghparas and co-authors (2021), Vinoth and co-authors (2021), and Hovancova and co-authors (2020). The fi rst-mentioned work was focused on the design of dumbbell-shaped double shelled hollow nanoporous CuO/ZnO microstructures by the hydrothermal method using pluronic F-127 as a surfactant (16). Zinc oxide quantum dots immobilized on multiwall carbon nanotubes were used as a sensing material in a Vinoth and co-authors glucose sensor (2021).…”
Section: Non-enzymatic Glucose Sensorsmentioning
confidence: 99%
“…Zinc oxide quantum dots immobilized on multiwall carbon nanotubes were used as a sensing material in a Vinoth and co-authors glucose sensor (2021). Hovancova and co-authors (2020) designed a glucose sensor based on a titanium metal covered with detection by titanium dioxide with electrochemical impedance spectroscopy (16)(17)(18).…”
Section: Non-enzymatic Glucose Sensorsmentioning
confidence: 99%
“…Furthermore, AgMSs or silver nanoparticles in microstructures have not only been exploited in the SERS application, but also in other potential applications, such as developing the performance of electrical devices, , engineering the porous materials in aerospace and construction applications, and advancing materials in the semiconductor devices, according to their large specific surface area, low density, and interesting catalytic and optical properties. , In these studies, the advanced characterization techniques of electron microscopy, energy-dispersive X-ray spectroscopy (EDS), and X-ray photoelectron spectroscopy (XPS) are generally used to attain detailed information about the surface analysis of AgMSs. , The spatial resolutions of scanning electron microscopy with EDS measurement and XPS technique are restricted to 1–2 μm and approximately 5 nm, respectively. , The elemental composition and chemical information are acquired from the near-surface region of AgMSs. Since the microscale size of AgMSs (∼20 μm) and their dimensions are not comparable to the interaction volumes of these two techniques, a cross-section at a broken area or computed tomography imaging is inevitable.…”
Section: Introductionmentioning
confidence: 99%