γ-Fe2O3nanoparticles modified glassy carbon electrode for the sensitive detection of folic acid

Jagadish, Ramu; Mahanthappa, Mallappa; Yellappa, Shivaraj; Chandrasekhar, K. B.

doi:10.1088/2053-1591/ab3bba

Cited by 5 publications

(4 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The quantitative impedance parameters obtained by fitting using Randles equivalent circuit (Figure 5b, Table 2) show a 17.6-fold decrease of the charge transfer resistance, i.e., improvement of the electron transfer rate for the modified electrode. These data agree with the reported for СеO2 [24] or γ-Fe2O3 [35] NPs, as well as for CeO2/Fe2O3 composite nanospindles [44]. Thus, the effectiveness of the СеO2•Fe2O3 NPs as electrode surface modifier has been confirmed by SEM, EIS, and cyclic voltammetry.…”

Section: Sem and Electrochemical Characterization Of The Electrodessupporting

confidence: 91%

“…are of interest as far as they provide a high effective area of the sensors, high selectivity, and sensitivity of target analyte determination [21,22]. Sensors based on SnO 2, TiO 2 , Fe 2 O 3 , Fe 3 O 4, ZnO, and CeO 2 NPs show sensitive and selective response to natural phenolic antioxidants [23][24][25][26][27][28][29], neuromediators [30][31][32][33], and some pharmaceuticals [34][35][36][37][38]. Electrochemical inertness of this type of NPs is another advantage providing registration of its own redox signal of the target analytes which improves the selectivity of their detection.…”

Section: Linear Dynamicmentioning

confidence: 99%

See 1 more Smart Citation

Cerium(IV) and Iron(III) Oxides Nanoparticles Based Voltammetric Sensor for the Sensitive and Selective Determination of Lipoic Acid

Ziyatdinova

Gimadutdinova

2021

Sensors

View full text Add to dashboard Cite

A novel voltammetric sensor based on CeO2·Fe2O3 nanoparticles (NPs) has been developed for the determination of lipoic acid, playing an essential role in aerobic metabolism in the living organism. Sensor surface modification provides a 5.6-fold increase of the lipoic acid oxidation currents and a 20 mV anodic shift of the oxidation potential. The best voltammetric parameters have been obtained for the 0.5 mg mL−1 dispersion of CeO2·Fe2O3 NPs. Scanning electron microscopy (SEM) confirms the presence of spherical NPs of 25–60 nm, and their aggregates evenly distributed on the electrode surface and formed porous coverage. This leads to the 4.4-fold increase of the effective surface area vs. bare glassy carbon electrode (GCE). The sensor shows a significantly higher electron transfer rate. Electrooxidation of lipoic acid on CeO2·Fe2O3 NPs modified GCE is an irreversible diffusion-controlled pH-independent process occurring with the participation of two electrons. The sensor gives a linear response to lipoic acid in the ranges of 0.075–7.5 and 7.5–100 μM with the detection limit of 0.053 μM. The sensor is selective towards lipoic acid in the presence of inorganic ions, ascorbic acid, saccharides, and other S-containing compounds. The sensor developed has been tested on the pharmaceutical dosage forms of lipoic acid.

show abstract

Section: Sem and Electrochemical Characterization Of The Electrodessupporting

confidence: 91%

Section: Linear Dynamicmentioning

confidence: 99%

Cerium(IV) and Iron(III) Oxides Nanoparticles Based Voltammetric Sensor for the Sensitive and Selective Determination of Lipoic Acid

Ziyatdinova

Gimadutdinova

2021

Sensors

View full text Add to dashboard Cite

show abstract

“…According to the results, the immobilised γ-Fe 2 O 3 NPs on GCE exhibited a very good electro-catalytic activity for the selective and sensitive detection of FA at the physiological pH. With regard to the calibration plot of the peak current against the target analyte concentration, differential pulse stripping voltammetry (DPSV) showed two linear ranges between 0.05 and 1 μM as well as 1 and 80 μM with the LOD of 2.8 and 48 nM [158].…”

Section: Tmo Nps-based Electrochemical Sensors To Analyze the Drug Co...mentioning

confidence: 98%

Applications of Non‐precious Transition Metal Oxide Nanoparticles in Electrochemistry

Tajik¹,

Beitollahi²,

Dourandish³

et al. 2022

Electroanalysis

View full text Add to dashboard Cite

Non‐precious transition metal oxide nanomaterials offer numerous opportunities for various cost‐effective electrochemical applications. This review article features the design and advancement of such nanomaterials with unique features applied for the fabrication of electrochemical devices. Also, it discusses various new syntheses of transition metal oxide nanoparticles (TMO NPs) via multiple chemicophysical and biological procedures. Further, the novel appliances of the TMO NPs with varying sizes and morphologies are appraised. The advantages and challenges of a number of investigations on the TMO NPs towards electrochemical applications are addressed with their standpoint of cost‐effectiveness, applicability, and the efficiency of the introduced nanostructures for the industrial applications.

show abstract

“…Ramu et al [ 123 ], presented a work demonstrating the use of starch in a different way, which aims to obtain nanoparticles of γ-Fe 2 O 3 (maghemite) with starch aid to modify a CGE. The electrochemical sensor was used in the determination of folic acid in pharmaceutical samples.…”

Section: Starch In Electrochemical Sensors and Biosensorsmentioning

confidence: 99%

Starch-Based Electrochemical Sensors and Biosensors: A Review

Vicentini

Silva

Stefano

et al. 2022

Biomedical Materials & Devices

View full text Add to dashboard Cite

Natural green compounds for sensor modification (binders) are challenging in electrochemistry. Starch is a carbohydrate biopolymer that has been used extensively in the development of biomaterials for the food industry due to its ability to impart textural characteristics and provide gelling or film formation. In particular, the excellent film-forming characteristics have been used for the development of new surface modifying architectures for electrodes. Here, we highlight a very comprehensive overview of the properties of interest of various types of starch in conjunction with (bio)materials in the chemical modification of sensors and biosensors. Throughout the review, we first give an introduction to the extraction, applications, and properties of starches followed by an overview of the prospects and their possible applications in electrochemical sensors and biosensors. In this context, we discuss some important characteristics of starches and different strategies of their film formation with an emphasis on their role in the development of electrochemical sensors and biosensors highlighting their main contributions to enhancing the performance of these devices and their applications in environmental and clinical samples. Graphical Abstract

show abstract

γ-Fe₂O₃nanoparticles modified glassy carbon electrode for the sensitive detection of folic acid

Cited by 5 publications

References 39 publications

Cerium(IV) and Iron(III) Oxides Nanoparticles Based Voltammetric Sensor for the Sensitive and Selective Determination of Lipoic Acid

Cerium(IV) and Iron(III) Oxides Nanoparticles Based Voltammetric Sensor for the Sensitive and Selective Determination of Lipoic Acid

Applications of Non‐precious Transition Metal Oxide Nanoparticles in Electrochemistry

Starch-Based Electrochemical Sensors and Biosensors: A Review

Contact Info

Product

Resources

About