A facile synthesis route to BiPr composite nanosheets and sensitive electrochemical detection of l-cysteine

Huang, Jianfeng; Tao, Feihu; Sun, Zizhan; Li, Feiyang; Cai, Zhengyu; Zhang, Yong; Fan, Chuangang; Pei, Lizhai

doi:10.1016/j.microc.2022.107915

Cited by 20 publications

(7 citation statements)

References 78 publications

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Section: Resultsmentioning

confidence: 99%

“…EIS provides strong evidence for analyzing the interface characteristics between the electrolyte and modified electrodes, and is also used for evaluating electron transfer performance. [61][62][63] The arc of the Nyquist plot of EIS is proportional to transfer resistance, reflecting electron transfer kinetics at the surface of the electrodes. 64,65 Figure 4 shows the SWVs of Cd 2+ at different electrodes in 0.1 mol L −1 KCl electrolyte with or without 1 mmol L −1 Cd 2+ in +0.2 V to +1.2 V. There are no anodic peaks observed from SWVs at the bare electrode in KCl solution without or with Cd 2+ , Nd vanadate nanoribbon-modified electrode in KCl solution.…”

Section: Resultsmentioning

confidence: 99%

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Facile synthesis of neodymium vanadate nanoribbons and its application to highly efficient determination of cadmium ions

Cong,

Wang,

Feng

et al. 2023

J of Chemical Tech & Biotech

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BACKGROUNDCadmium ions may be discarded to the environment with living organisms from fossil fuel combustion, phosphate fertilizer and battery industries. It is urgent and essential to develop a sensitive and rapid method for monitoring Cd2+ level in aquatic environments and biological systems. Neodymium vanadate possesses good catalytic performance for the electrocatalysis of heavy metal ions. Single crystalline Nd vanadate nanoribbons were obtained by a facile approach and used as electrode materials for electrochemical detection of Cd2+.RESULTSThe Nd nanoribbons with tetragonal NdVO4 phase possess length, width and thickness of longer than 10 μm, 200 nm to 1.5 μm and 50 nm, respectively. Nd vanadate nanoribbons can serve as a good electron transfer interface. An anodic peak is located at +0.56 V at the Nd vanadate nanoribbon‐modified electrode in 0.1 mol L−1 KCl electrolyte containing 1 mmol L−1 Cd2+ by square wave voltammetry technique. The Nd vanadate nanoribbon‐modified electrode exhibits a linear range of 0.01–1000 μmol L−1 and a detection limit of 0.29 nmol L−1, with good stability, reproducibility and selectivity for Cd2+ detection.CONCLUSIONThe optimal measurement conditions including the pH value of the KCl solution, deposition time, deposition potential and standing time, which are pH 1, 180 s, −1.0 V and 60 s, respectively. The Nd vanadate nanoribbon‐modified electrode shows great application potential for detecting heavy metal ions in liquid environments. © 2023 Society of Chemical Industry.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Facile synthesis of neodymium vanadate nanoribbons and its application to highly efficient determination of cadmium ions

Cong,

Wang,

Feng

et al. 2023

J of Chemical Tech & Biotech

Self Cite

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“…But it requires a high oxidation overpotential and lacks sensitive voltammetric response. 12 Colorimetry has attracted more attention due to its simple operation, low cost and good visibility. 13 In recent years, colorimetry based on nanomaterials with oxidase-like activity directly catalyzing TMB oxidation has been widely used for the determination of l -cys.…”

Section: Introductionmentioning

confidence: 99%

CoO/Co-graphene quantum dots as an oxidative mimetic nanozyme for the colorimetric detection of l-cysteine

Xu,

Tu,

San

et al. 2024

Anal. Methods

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“…The L-cysteine measurement technology for clinical and commercial purposes is still under research, and the development of low-cost, simple, and highly sensitive L-cysteine detectors has become a key task in the food, biological, and medical fields [ 8 ]. At present, there are many detection methods for L-cysteine, mainly including high-performance liquid chromatography [ 9 ], colorimetric detection [ 10 ], flow injection analysis (FIA) [ 11 ], photoelectrochemical (PEC) sensors [ 12 ], fluorescence spectroscopy [ 13 ], and electrochemical detection techniques [ 14 , 15 , 16 ]. Among these methods, most of them have drawbacks, such as a complex sample preparation process, expensive precision instruments, inconvenient operation, or low sensitivity, which greatly limit their application in practical detection.…”

Section: Introductionmentioning

confidence: 99%

Spherical Silver Nanoparticles Located on Reduced Graphene Oxide Nanocomposites as Sensitive Electrochemical Sensors for Detection of L-Cysteine

Hua,

Yao,

Yao

2024

Sensors

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A new, simple, and effective one-step reduction method was applied to prepare a nanocomposite with spherical polycrystalline silver nanoparticles attached to the surface of reduced graphene oxide (Ag@rGO) at room temperature. Equipment such as X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared spectroscopy (FTIR) was used to characterize the morphology and composition of the Ag@rGO nanocomposite. A novel electrochemical sensor for detecting L-cysteine was proposed based on fixing Ag@rGO onto a glassy carbon electrode. The electrocatalytic behavior of the sensor was studied via cyclic voltammetry and amperometry. The results indicate that due to the synergistic effect of graphene with a large surface area, abundant active sites, and silver nanoparticles with good conductivity and high catalytic activity, Ag@rGO nanocomposites exhibit significant electrocatalytic activity toward L-cysteine. Under optimal conditions, the constructed Ag@rGO electrochemical sensor has a wide detection range of 0.1–470 μM for L-cysteine, low detection limit of 0.057 μM, and high sensitivity of 215.36 nA M−1 cm−2. In addition, the modified electrode exhibits good anti-interference, reproducibility, and stability.

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A facile synthesis route to BiPr composite nanosheets and sensitive electrochemical detection of l-cysteine

Cited by 20 publications

References 78 publications

Facile synthesis of neodymium vanadate nanoribbons and its application to highly efficient determination of cadmium ions

Facile synthesis of neodymium vanadate nanoribbons and its application to highly efficient determination of cadmium ions

CoO/Co-graphene quantum dots as an oxidative mimetic nanozyme for the colorimetric detection of l-cysteine

Spherical Silver Nanoparticles Located on Reduced Graphene Oxide Nanocomposites as Sensitive Electrochemical Sensors for Detection of L-Cysteine

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