Lanthanum nickelate spheres embedded acid functionalized carbon nanofiber composite: An efficient electrocatalyst for electrochemical detection of food additive vanillin

Nixon, Evangeline Jafneel; Sakthivel, Rajalakshmi; ALOthman, Zeid A.; Ganesh, Pattan-Siddappa; Chung, Ren‐Jei

doi:10.1016/j.foodchem.2022.135324

Cited by 25 publications

(8 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The electrocatalytic ability of the decorated electrodes (FP-gCN/SPCE) was analyzed by CV techniques in the presence of 30 μM vanillin in PBS at a fixed scan rate of 50 mV/s and a potential window of 0–1.0 V. Figure a presents the CV curves of the bare, bulk gCN and decorated FP-gCN/SPCE electrodes, where the anodic peak response is related to the oxidation of the vanillin groups via the loss of two proton and two electrons (–2H + / −2e – ) from the aromatic ring. , The undecorated SPCE electrodes had no response, indicating no detection (Figure b). Moreover, the bulk gCN material-decorated SPCE had lower current values toward the detection of vanillin.…”

Section: Electrochemical Sensormentioning

confidence: 99%

“…Various kinds of food formulations include taste-active ingredients to enhance flavor. , Vanillin (4-hydroxy-3-methoxybezaldehyde) is a main ingredient for enhancing flavoring agents and is applied as a flavoring ingredient in food, pharmaceuticals, perfumes, etc. − The vanillin compound is traditionally extracted from the vanilla planifolia orchid plant. Vanillin is mostly used in food-related products such as chocolates, custards, desserts, and ice cream as a taste enhancer. − In recent times, the production of vanillin products has predominantly relied on chemical synthesis, primarily because the yield from plant extracts is considerably low. However, the excessive consumption of vanillin can lead to various side effects in humans, particularly in children who have a penchant for sweets, chocolates, and ice cream. , Furthermore, vanillin can cause migraine headaches.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Hetero-Single-Atom F and P-Doped Layered Graphitic Carbon Nitride Nanosheets for Electrochemical Quantification of Vanillin in Food Samples

Vasu,

Ravi,

Moorthi

et al. 2024

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

In this article, we present the preparation of a novel heteroatom halogen (fluorine) and nonmetal phosphorus-doped layered graphitic carbon nitride, via the thermal decomposition technique, and examined its electrochemical monitoring ability for vanillin detection. The materials’ basic properties have been observed with various analytical analyses such as X-ray diffractometry, field-emission scanning electron microscopy, X-ray photoelectron spectroscopy, and transmission electron microscopy. The proposed electrochemical sensor material was examined under various operating conditions to demonstrate a good current response for vanillin sensing. The sensor has a wide linear range (0.2–100 μM) and a lower limit of detection (LoD = 15 nM) with an enhanced sensitivity of 1.80 μA μM–1 cm–2. Ultimately, the potential utility of the suggested sensor was effectively tested on food samples, demonstrating exceptional recoveries of 99.46 and 96.76% for coffee and vanilla ice cream, respectively, with corresponding relative standard deviations of 1.83 and 1.21 for each.

show abstract

Section: Electrochemical Sensormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hetero-Single-Atom F and P-Doped Layered Graphitic Carbon Nitride Nanosheets for Electrochemical Quantification of Vanillin in Food Samples

Vasu,

Ravi,

Moorthi

et al. 2024

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

show abstract

“…7 7 n m [ 195] La 2 NiO 4 /f-CNF Vanillin 5 nm -3035 μm 6 . 1 2 × 10 −9 m [ 196] Co 3 O 4 @g-C 3 N 4 Thiamethoxam 0.01 μm -420 μm 4 . 9 n m [ 197] K + -Ti 3 C 2 T x TCS 0.01 μm -50 μm 1.18 nm [198] UiO-66/NPC/ERGO MP 20 ng mL −1 -4000 ng mL −1 0.395 ng mL −1 [199] substantial attention across diverse arenas encompassing disease diagnosis, therapeutic intervention, sensing, and ecological conservation, fostering a prolific advancement (Table 1-3).…”

Section: Improvement and Optimization Of Nanozymesmentioning

confidence: 99%

Nanozyme‐Enhanced Electrochemical Biosensors: Mechanisms and Applications

Yang,

Guo,

Wang

et al. 2023

Small

View full text Add to dashboard Cite

Nanozymes, as innovative materials, have demonstrated remarkable potential in the field of electrochemical biosensors. This article provides an overview of the mechanisms and extensive practical applications of nanozymes in electrochemical biosensors. First, the definition and characteristics of nanozymes are introduced, emphasizing their significant role in constructing efficient sensors. Subsequently, several common categories of nanozyme materials are delved into, including metal‐based, carbon‐based, metal‐organic framework, and layered double hydroxide nanostructures, discussing their applications in electrochemical biosensors. Regarding their mechanisms, two key roles of nanozymes are particularly focused in electrochemical biosensors: selective enhancement and signal amplification, which crucially support the enhancement of sensor performance. In terms of practical applications, the widespread use of nanozyme‐based electrochemical biosensors are showcased in various domains. From detecting biomolecules, pollutants, nucleic acids, proteins, to cells, providing robust means for high‐sensitivity detection. Furthermore, insights into the future development of nanozyme‐based electrochemical biosensors is provided, encompassing improvements and optimizations of nanozyme materials, innovative sensor design and integration, and the expansion of application fields through interdisciplinary collaboration. In conclusion, this article systematically presents the mechanisms and applications of nanozymes in electrochemical biosensors, offering valuable references and prospects for research and development in this field.

show abstract

“…The electrode’s surface may be appropriately modified to improve the electrode’s ability to transfer charges, prevent fouling, facilitate redox properties, lower overpotential, and speed up electrochemical reactions. – CNFs are considered a superior electrode material and have many advantages, such as excellent structural stability, electrical conductivity, and high adsorption capacity. CNFs exhibit higher edge plane imperfections, pore volume, and size than other dopants because they comprise stacked graphene sheets. , The layered structural configuration aids in the development of reactive sites. After being functionalized by acids, CNFs are activated by edge–plane structural deficiencies and newly added oxygen-containing functional groups with the carbon backbone’s structural integrity retained, which helps with electron transport in electroactive analytes .…”

Section: Introductionmentioning

confidence: 99%

Neodymium(III) Vanadate-Decorated Functionalized Carbon Nanofiber Nanocomposite: An Electrochemical Tool for Tartrazine Monitoring

Radha,

Wang

2023

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

Human health is adversely affected by the excessive consumption of substances such as food colorants, exposure to metal ion dosages, antibiotic residues, and pesticide residues above the maximum tolerated levels. Among them, the synthetic food dye tartrazine (TRZ), widely used in various foods, is harmful to human health because of its pathogenicity and toxicity. Neodymium vanadate (NdVO4) nanoparticles embedded in functionalized carbon nanofiber (F-CNF)-modified electrodes serve as sensitive electrodes for TRZ detection. Neodymium is a rare-earth metal with a significant advantage over other rare-earth metals in electrochemical redox reactions. Furthermore, fast electron mobility for well-defined current potentials and well-separated peaks suggests that NdVO4 has an increased active surface area. The modified NdVO4@F-CNF/GCE exhibits a smaller semicircle value R ct = 20.1 Ω·cm2 and a lower cyclic voltammetry peak-to-peak separation of ΔE p = 98 mV in the redox probe. The NdVO4@F-CNF-modified GCE exhibited a higher current response of I pa = 17.05 μA at a peak potential of E pa = 0.69 V (vs Ag/AgCl). The nanocomposite is therefore chosen as an astounding detecting candidate due to the addition of F-CNF, which exhibits a significant improvement in electronic conductivity. Under optimal conditions, the sensor has a low detection limit (0.0011 μM) with a linear response of the 0.05–271.6 μM concentration range of TRZ. NdVO4@F-CNF was used to investigate the electrochemical sensing of TRZ in orange juice and orange jelly samples.

show abstract

Lanthanum nickelate spheres embedded acid functionalized carbon nanofiber composite: An efficient electrocatalyst for electrochemical detection of food additive vanillin

Cited by 25 publications

References 35 publications

Hetero-Single-Atom F and P-Doped Layered Graphitic Carbon Nitride Nanosheets for Electrochemical Quantification of Vanillin in Food Samples

Hetero-Single-Atom F and P-Doped Layered Graphitic Carbon Nitride Nanosheets for Electrochemical Quantification of Vanillin in Food Samples

Nanozyme‐Enhanced Electrochemical Biosensors: Mechanisms and Applications

Neodymium(III) Vanadate-Decorated Functionalized Carbon Nanofiber Nanocomposite: An Electrochemical Tool for Tartrazine Monitoring

Contact Info

Product

Resources

About