Electrochemical determination of vanillin in food samples by using pyrolyzed graphitic carbon nitride

Fu, Li; Xie, Kefeng; Wu, Dihua; Wang, Aiwu; Zhang, Huaiwei; Ji, Zhenguo

doi:10.1016/j.matchemphys.2019.122462

Cited by 62 publications

(17 citation statements)

References 54 publications

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“…As can be seen on Table 1, the f-MWCNTs-FNTs/CPE prepared sensor shows a low detection limit and a large linear concentration range compared to those reported in the literature (Ceylan Koçak et al, 2018;Dilgin et al, 2019;Chen et al, 2019;Fu et al, 2020;Raril et al, 2020;Raril et al, 2020;Tabanlıgil Calam, 2020).…”

Section: Calibration Curves and Detection Limitmentioning

confidence: 69%

Fullerene-MWCNT nanostructured-based electrochemical sensor for the detection of Vanillin as food additive

Taouri

Bourouina

Bourouına-Bacha

et al. 2021

Journal of Food Composition and Analysis

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In this paper, a simple, economical, selective and sensitive electrochemical sensor is proposed for the quantification of vanillin (VAN) in real food samples. It consists of a carbon paste electrode (CPE) nanostructured with Fullerene (FNTs) and functionalized multi-walled carbon nanotubes (f-MWCNTs). The developed electroanalytical method was performed with cyclic voltammetry after optimization of operating conditions, such as supporting electrolytes, pH values and accumulation time. After optimization, the nanostructured sensor showed wide linear responses in the range from 5x10 -8 to 9x10 -6 mol.L -1 for VAN trace levels and from 10 -5 to 10 -4 mol.L -1 for higher concentrations, with a low detection limit of 3.4x10 -8 mol.L -1 . For concentrations lower than 10 -5 mol.L -1 , VAN was stripped after a previous quick adsorption step (300 s). The f-MWCNTs-FNTs/CPE sensor showed a good stability, repeatability and reproducibility (less than 7 %). This nanostructured sensor was successfully applied to determine VAN concentration as additive in commercial vanilla sugar samples with a satisfactory recovery and a good accuracy (< 6.5 %) in comparison with UPLC/UV control method.

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Section: Calibration Curves and Detection Limitmentioning

confidence: 69%

Fullerene-MWCNT nanostructured-based electrochemical sensor for the detection of Vanillin as food additive

Taouri

Bourouina

Bourouına-Bacha

et al. 2021

Journal of Food Composition and Analysis

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“…Generally speaking, nanomaterials are most commonly used for the modification of sensor electrodes [29][30][31][32]. Nanomaterials exhibit some properties that are unique from microscopic particles and macroscopic objects because of their particle size up to the nanoscale and the special effects of their large surfaces; for example, surface effect, volume effect, quantum size effect, and macroscopic quantum tunneling effect.…”

Section: Introductionmentioning

confidence: 99%

Conductive Hydrogel-Based Electrochemical Sensor: A Soft Platform for Capturing Analyte

Lai

2021

Chemosensors

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Electrode modifications for electrochemical sensors attract a lot of attention every year. Among them, hydrogels are a relatively special class of electrode modifier. Since hydrogels often contain polymers, even though they are conductive polymers, they are not ideal electrode modifiers because of their poor conductivity. However, the micro-aqueous environment and the three-dimensional structure of hydrogels are an excellent platform for immobilizing bioactive molecules and maintaining their activity. This gives the hydrogel-modified electrochemical sensor the potential to perform specific recognition. At the same time, the rapid development of nanomaterials also makes the composite hydrogel have good electrical conductivity. This has led many scientists to become interested in hydrogel-based electrochemical sensors. In this review, we summarize the development process of hydrogel-based electrochemical sensors, starting from 2000. Hydrogel-based electrochemical sensors were initially used only as a carrier for biomolecules, mostly for loading enzymes and for specific recognition. With the widespread use of noble metal nanoparticles and carbon materials, hydrogels can now be used to prepare enzyme-free sensors. Although there are some sporadic studies on the use of hydrogels for practical applications, the vast majority of reports are still limited to the detection of common model molecules, such as glucose and H2O2. In the review, we classify hydrogels according to their different conducting strategies, and present the current status of the application of different hydrogels in electrochemical sensors. We also summarize the advantages and shortcomings of hydrogel-based electrochemical sensors. In addition, future prospects regarding hydrogel for electrochemical sensor use have been provided at the end.

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“…In special cases, the separator will be partially damaged, resulting in direct contact between the anode and cathode, which will lead to severe battery reaction and lead to battery fire and explosion [12][13][14][15]. Therefore, to improve the safety of lithium-ion battery and ensure the safe and stable operation of the battery, the separator must meet the following conditions: (1) chemical stability: no reaction with electrolyte and electrode materials; (2) wettability: easy to soak with electrolyte and no elongation or shrinkage; (3) thermal stability: high-temperature resistance, high fusing isolation; (4) mechanical properties: good tensile strength to ensure that the strength and width of automatic winding remain unchanged; (5) porosity: high porosity to meet the requirements of ionic conductivity.…”

Section: Introductionmentioning

confidence: 99%

Polyethylene Terephthalate-Based Materials for Lithium-Ion Battery Separator Applications: A Review Based on Knowledge Domain Analysis

Xie

Wang

et al. 2021

International Journal of Polymer Science

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As the key material of lithium battery, separator plays an important role in isolating electrons, preventing direct contact between anode and cathode, and allowing free passage of lithium ions in the electrolyte. Polyethylene terephthalate (PET) has excellent mechanical, thermodynamic, and electrical insulation properties. This review aims to identify the research progress and development trends of PET-based material for separator application. We retrieved published papers (2004–2019) from the Scientific Citation Index Expanded (SCIE) database of the WoS with a topic search related to PET-based material for separator application. The research progress and development trends were analyzed based on the CiteSpace software of text mining and visualization.

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Electrochemical determination of vanillin in food samples by using pyrolyzed graphitic carbon nitride

Cited by 62 publications

References 54 publications

Fullerene-MWCNT nanostructured-based electrochemical sensor for the detection of Vanillin as food additive

Fullerene-MWCNT nanostructured-based electrochemical sensor for the detection of Vanillin as food additive

Conductive Hydrogel-Based Electrochemical Sensor: A Soft Platform for Capturing Analyte

Polyethylene Terephthalate-Based Materials for Lithium-Ion Battery Separator Applications: A Review Based on Knowledge Domain Analysis

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