Development of Nonenzymatic Benzoic Acid Detection on PdSn/GCE/Vulcan XC‐72R Prepared via Polyol Method

Kazıcı, Hilal Çelik; Yayla, Müge; Aktaş, Nahit; Kıvrak, Hilal

doi:10.1002/elan.201900088

Cited by 14 publications

(2 citation statements)

References 36 publications

(33 reference statements)

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“…However, further applications of enzyme-based electrochemical sensors were prevented because of the inherent disadvantages of low stability, inferior reproducibility, and conditional sensitivity in different environmental influence such as pH and temperature . Therefore, the construction of a nonenzymatic electrochemical method for highly selective and ultrasensitive determination of H 2 O 2 has attracted great interests. − …”

Section: Introductionmentioning

confidence: 99%

One-Step Electrodeposition of Silver Nanostructures on 2D/3D Metal–Organic Framework ZIF-67: Comparison and Application in Electrochemical Detection of Hydrogen Peroxide

Sun

Yang

Wei

et al. 2020

ACS Appl. Mater. Interfaces

106

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Metal–organic frameworks (MOFs) have been widely used as supporting materials to load or encapsulate metal nanoparticles for electrochemical sensing. Herein, the influences of morphology on the electrocatalytic activity of Co-containing zeolite imidazolate framework-67 (ZIF-67) as supporting materials were studied. Three types of morphologies of MOF ZIF-67 were facilely synthesized by changing the solvent because of the influence of the polar solvent on the nucleation and preferential crystal growth. Two-dimensional (2D) ZIF-67 with microplate morphology and 2D ultrathin ZIF-67 nanosheets were obtained from pure H2O (H-ZIF-67) and a mixed solution of dimethylformamide and H2O (D-ZIF-67), respectively. Three-dimensional ZIF-67 with rhombic dodecahedron morphology was obtained from pure methanol (M-ZIF-67). Then, one-step electrodeposition of silver nanostructures on ZIF-67-modified glassy carbon electrode (Ag/ZIF-67/GCE) was performed for the reduction of hydrogen peroxide (H2O2). Cyclic voltammetry can be used to investigate the electrocatalytic activity of Ag/ZIF-67/GCE, and Ag/H-ZIF-67/GCE displayed the best electrocatalytic property than Ag/D-ZIF-67/GCE and Ag/M-ZIF-67/GCE. The electrochemical H2O2 sensor showed two wide linear ranges of 5 μM to 7 mM and 7 to 67 mM with the sensitivities of 421.4 and 337.7 μA mM–1 cm–2 and a low detection limit of 1.1 μM. In addition, the sensor exhibited good selectivity, high reproducibility, and stability. Furthermore, it has been utilized for real-time detection of H2O2 from HepG2 human liver cancer cells. This work provides a novel strategy for enhancing the detection performance of electrochemical sensors by changing the crystalline morphologies of supporting materials.

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Section: Introductionmentioning

confidence: 99%

One-Step Electrodeposition of Silver Nanostructures on 2D/3D Metal–Organic Framework ZIF-67: Comparison and Application in Electrochemical Detection of Hydrogen Peroxide

Sun

Yang

Wei

et al. 2020

ACS Appl. Mater. Interfaces

106

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“…In electroanalysis, electrode–solution coupling is of vital importance because the maintenance of a diffusion curve causes analytes to migrate from the entire solution approach to the electrode surface in the absence of applied voltage, and the concentration of the analyte across the surface of the electrode can influence a number of electrochemical variables (Kazici et al., 2019).…”

Section: Resultsmentioning

confidence: 99%

Simple detection of gluten in commercial gluten‐containing samples with a novel nanoflower electrosensor made of molybdenum disulfide with comparison of the ELISA method

Salman,

Zengin,

Çelik Kazici

2024

Journal of Food Science

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In this study, a new electrochemical sensor based on molybdenum disulfide (MoS2) nanoflowers/glassy carbon electrode (GCE was created for the sensitive detection of gluten. The prepared nanocatalysts were characterized using scanning electron microscopy with energy dispersive spectroscopy, x‐ray diffraction, and x‐ray photoelectron spectroscopy. The effects of the prepared nanocatalysts, pH value, and dropping amounts on the results were examined in detail. The electrochemical performance of the developed sensor (MoS2 nanoflowers/GCE) was then evaluated using differential pulse voltammetry, and the sensor was found to have significant electrochemical activity against gluten. A substantial linear connection was observed in the range of 0.5–100 ppm of gluten concentration under optimum experimental circumstances, and the detection limit between peak current and gluten concentration was determined as 1.16 ppm. The findings showed that the MoS2 nanoflowers/GCE gluten sensor has exceptional selectivity and stability. Finally, the generated electrochemical sensor was effectively utilized for gluten detection in commercial gluten‐containing materials with a detection limit of 0.1652 ppm. Thus, the developed MoS2 nanoflowers/GCE sensor offers a potential method for the detection of other molecules and is a promising candidate for gluten detection in commercial samples.

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Comparative of MIL101(Cr) and nano‐MIL101(Cr) Electrode as an Electrochemical Hydrogen Peroxide Sensor

2022

Self Cite

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Herein, an electrochemical sensor for the detection of H 2 O 2 based on nafion glassy carbon electrode modified with MIL101(Cr) and nano-MIL101(Cr) are developed and its electrochemical characterizations analyzed by CV and CA. In comparison with the NGCE, MIL101/NGCE and nano-MIL101/NGCE, the nano-MIL101/NGCE showed a sharp redox peak specific to H 2 O 2 was obtained in the phosphate-calibrated solution.nano-MIL101/NGCE exhibited good linear response in terms of the relationship between peak currents and concentrations as from 0 to 650 μM (R 2 = 0.99), with a low limit of detection 3.8 μM, high sensitivity 986 μA mM À 1 cm À 2 and nano-MIL101/NGCE exhibited ideal repeatability, reproducibility, stability and the interference-free perception of H 2 O 2 .

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Development of Nonenzymatic Benzoic Acid Detection on PdSn/GCE/Vulcan XC‐72R Prepared via Polyol Method

Cited by 14 publications

References 36 publications

One-Step Electrodeposition of Silver Nanostructures on 2D/3D Metal–Organic Framework ZIF-67: Comparison and Application in Electrochemical Detection of Hydrogen Peroxide

One-Step Electrodeposition of Silver Nanostructures on 2D/3D Metal–Organic Framework ZIF-67: Comparison and Application in Electrochemical Detection of Hydrogen Peroxide

Simple detection of gluten in commercial gluten‐containing samples with a novel nanoflower electrosensor made of molybdenum disulfide with comparison of the ELISA method

Comparative of MIL101(Cr) and nano‐MIL101(Cr) Electrode as an Electrochemical Hydrogen Peroxide Sensor

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