A non-enzymatic sensor for hydrogen peroxide based on the use of α-Fe2O3 nanoparticles deposited on the surface of NiO nanosheets

achari, Divyalakshmi Saravana; Santhosh, Chella; Deivasegamani, Revathy; Nivetha, Ravi; Bhatnagar, Amit; Jeong, Soon Kwan; Grace, Andrews Nirmala

doi:10.1007/s00604-017-2335-8

Cited by 48 publications

(8 citation statements)

References 35 publications

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“…Table I shows a comparison of H 2 O 2 sensing performance of the current modified electrode with those obtained using different metal oxide-based electrodes. 34,35,[69][70][71][72][73][74][75][76][77] Compared to earlier reports, we observed that the as-fabricated Meso-C/ZnO electrocatalyst exhibited a competitive sensitivity, low detection limit and relatively wide detection range. Particularly for the LOD value, our fabricated electrode exhibited lower detection limit compared with previously modified electrodes, such as Co doped ZnO, 34 Cu 2 O and Cu 2 O/GNs, 73 Cu 2 O-rGO, 74 NiO/α-Fe 2 O 3 76 and PtSPE/ZnONPs.…”

Section: ( ) [ ] [ ] /contrasting

confidence: 79%

A Highly Efficient Nonenzymatic Hydrogen Peroxide Electrochemical Sensor Using Mesoporous Carbon Doped ZnO Nanocomposite

Rashed

Faisal

Harraz

et al. 2021

J. Electrochem. Soc.

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Carbon nanomaterial coupled with inorganic semiconductor based metal oxide is a facile route to develop effective electrochemical sensors. Herein, an electrochemical investigation was carried out for selective and sensitive detection of hydrogen peroxide (H2O2) using 5% mesoporous carbon doped ZnO (Meso-C/ZnO) nanocomposite modified glassy carbon electrode (GCE). The ZnO nanomaterial was synthesized by a F127 structural template agent in a modified sol-gel procedure. Then, a simple ultra-sonication technique was employed to synthesize Meso-C/ZnO nanocomposite. XRD, TEM, FTIR, Raman, and XPS techniques were successfully applied to characterize the as-fabricated nanocomposite. CV and EIS measurements were used to evaluate the electrocatalytic activity of the modified electrode compared to pure ZnO modified GCE and unmodified GCE. The sensing efficiency of the active modified electrode was examined with square wave voltammetry (SWV) technique and the sensor exhibits excellent performance towards the detection of H2O2 in a wide linear concentration range (from 50 μM to 981 μM), with high sensitivity (0.04648 μMμA−1 cm−2), and low limit of detection (6.25 μM). Additionally, the selectivity test using several common interfering species demonstrated excellent anti-interfering ability. Furthermore, the fabricated electrode showed excellent reproducibility and operational stability as well as suitability for the real sample analysis. Thus, this new sensor is considered as very auspicious candidate in several fields of science and industry.

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Section: ( ) [ ] [ ] /contrasting

confidence: 79%

A Highly Efficient Nonenzymatic Hydrogen Peroxide Electrochemical Sensor Using Mesoporous Carbon Doped ZnO Nanocomposite

Rashed

Faisal

Harraz

et al. 2021

J. Electrochem. Soc.

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“…5 and the LOD value was estimated to be 5.18 μM with a linear detection range (LDR) is 0.5-9.5 mM. In summary, we can conclude that the newly fabricated sensor electrode demonstrated a wide range of H 2 O 2 detection with a rapid response of <10 s. The sensor efficiency in terms of sensitivity, LOD, and linear detection range (LDR) is acceptable compared to previously reported Fe 2 O 3 and Au nanoparticle-based non-enzymatic H 2 O 2 sensor electrodes 27,36,39,41,47,[59][60][61][86][87][88][89][90][91][92][93][94][95][96][97][98][99][100][101][102] as depicted in Table II. The obtained data revealed that the LOD value of our proposed sensor electrode is better than some previously reported iron oxide nanostructures and AuNPs-based sensor electrodes such as α-Fe 2 O 3 , 102 3Dα-Fe 2 O 3 , 39 Pth/MWCNTs/{IOMN/Th}, 87 amorphous Fe 2 O 3 , 86 NiO/ α-Fe 2 O 3 , 100 40-46 nm PB/Fe 2 O 3 , 91 AuNPs-Psi, 27 rGO/AuNPs, 92 AuNPs-CESM, 97 and AuPd/C.…”

Section: Electrodementioning

confidence: 58%

Efficient Amperometric Detection of H₂O₂ using Gold Nanoparticle decorated Polythiophene/Hematite Ore Nanocomposite

Rashed,

Rahman,

Nayem

et al. 2024

J. Electrochem. Soc.

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We have developed a cheap and sensitive H2O2 electrochemical sensor. Herein we fabricated the electrochemical sensor electrode using a naturally extracted hematite ore decorated with conducting polythiophene (Pth) and gold nanoparticles (AuNPs). A simple synthesis route was adopted for the electrocatalyst synthesis using ultrasonication followed by photo-reduction. The as-fabricated Au@Pth/Hematite Ore nanocomposite was successfully characterized by X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, and field-effect transmission electron microscopy techniques. Obtained results reveal that un-doped naturally-extracted hematite ore is composed of Fe2O3 and Fe3O4 phases. The catalytic efficiency of the newly-designed nanocomposite and its sensing ability towards H2O2 were assessed using electrochemical techniques including electrochemical impedance spectroscopy, cyclic voltammetry, linear sweep voltammetry, and highly-sensitive amperometric (i-t) techniques. The Au@Pth/Hematite Ore/GCE sensor showed a wide linear dynamic range of 0.5–9.50 mM with high sensitivity of 69.18 μAmM- 1cm- 2. The limit of detection was estimated to be 5.18 µM. The examined sensor revealed acceptable reproducibility, repeatability, and stability. The examined sensor electrode also showed anti-interference behaviour in the presence of different interfering ions or molecules during the H2O2 determination. Moreover, the proposed sensor exhibits acceptable recovery of H2O2 in real sample analysis.

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“…The electrode's shape, size, and position in the channel produce a nonuniform electric field gradient [59]. Metals, for instance, gold (Au), silver (Ag), chromium (Cr), platinum (Pt), and titanium (Ti), are commonly used to implement electrode geometries [60][61][62]. Which includes planar [63,64], interdigitated [65,66], quadrupole [3], tapered [45,[67][68][69][70][71][72][73], rectangular [74], curved [75], and spiral electrodes [4,35].…”

Section: Dep Devices For Biological Fluid Applicationsmentioning

confidence: 99%

A correlation of conductivity medium and bioparticle viability on dielectrophoresis‐based biomedical applications

et al. 2023

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Dielectrophoresis (DEP) bioparticle research has progressed from micro to nano levels. It has proven to be a promising and powerful cell manipulation method with an accurate, quick, inexpensive, and label-free technique for therapeutic purposes. DEP, an electrokinetic phenomenon, induces particle movement as a result of polarization effects in a nonuniform electrical field. This review focuses on current research in the biomedical field that demonstrates a practical approach to DEP in terms of cell separation, trapping, discrimination, and enrichment under the influence of the conductive medium in correlation with bioparticle viability. The current review aims to provide readers with an in-depth knowledge of the fundamental theory and principles of the DEP technique, which is influenced by conductive medium and to identify and demonstrate the biomedical application areas. The high conductivity of physiological fluids presents obstacles and opportunities, followed by bioparticle viability in an electric field elaborated in detail. Finally, the drawbacks of DEP-based systems

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A non-enzymatic sensor for hydrogen peroxide based on the use of α-Fe2O3 nanoparticles deposited on the surface of NiO nanosheets

Cited by 48 publications

References 35 publications

A Highly Efficient Nonenzymatic Hydrogen Peroxide Electrochemical Sensor Using Mesoporous Carbon Doped ZnO Nanocomposite

A Highly Efficient Nonenzymatic Hydrogen Peroxide Electrochemical Sensor Using Mesoporous Carbon Doped ZnO Nanocomposite

Efficient Amperometric Detection of H₂O₂ using Gold Nanoparticle decorated Polythiophene/Hematite Ore Nanocomposite

A correlation of conductivity medium and bioparticle viability on dielectrophoresis‐based biomedical applications

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A non-enzymatic sensor for hydrogen peroxide based on the use of α-Fe2O3 nanoparticles deposited on the surface of NiO nanosheets

Cited by 48 publications

References 35 publications

A Highly Efficient Nonenzymatic Hydrogen Peroxide Electrochemical Sensor Using Mesoporous Carbon Doped ZnO Nanocomposite

A Highly Efficient Nonenzymatic Hydrogen Peroxide Electrochemical Sensor Using Mesoporous Carbon Doped ZnO Nanocomposite

Efficient Amperometric Detection of H2O2 using Gold Nanoparticle decorated Polythiophene/Hematite Ore Nanocomposite

A correlation of conductivity medium and bioparticle viability on dielectrophoresis‐based biomedical applications

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Efficient Amperometric Detection of H₂O₂ using Gold Nanoparticle decorated Polythiophene/Hematite Ore Nanocomposite