Recent advances in electrochemical nonenzymatic hydrogen peroxide sensors based on nanomaterials: a review

Dhara, Keerthy; Mahapatra, D. Roy

doi:10.1007/s10853-019-03750-y

Cited by 139 publications

(79 citation statements)

References 394 publications

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“…Furthermore, we demonstrated the fabrication of an SSCNTbased flexible electrochemical sensor for hydrogen peroxide, which is an important intermediate in biological processes. [59][60][61] Figure 5h illustrates the scheme of the electrochemical sensor system. The flexible electrochemical sensor was fabricated via stencil printing SSCNT ink and silver chloride paste on a PET film.…”

Section: Doi: 101002/adma202000165mentioning

confidence: 99%

Stable and Biocompatible Carbon Nanotube Ink Mediated by Silk Protein for Printed Electronics

et al. 2020

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Ink‐based processes, which enable scalable fabrication of flexible devices based on nanomaterials, are one of the practical approaches for the production of wearable electronics. However, carbon nanotubes (CNTs), which possess great potential for flexible electronics, are facing challenges for use in inks due to their low dispersity in most solvents and suspicious cytotoxicity. Here, a stable and biocompatible CNT ink, which is stabilized by sustainable silk sericin and free from any artificial chemicals, is reported. The ink shows stability up to months, which can be attributed to the formation of sericin–CNT (SSCNT) hybrid through non‐covalent interactions. It is demonstrated that the SSCNT ink can be used for fabricating versatile circuits on textile, paper, and plastic films through various techniques. As proofs of concept, electrocardiogram electrodes, breath sensors, and electrochemical sensors for monitoring human health and activity are fabricated, demonstrating the great potential of the SSCNT ink for smart wearables.

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Section: Doi: 101002/adma202000165mentioning

confidence: 99%

Stable and Biocompatible Carbon Nanotube Ink Mediated by Silk Protein for Printed Electronics

et al. 2020

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“…As noble metal NPs are capable of detecting peroxide at low overpotential when compared to bare classical electrodes, they were also employed in enzyme-free devices. There are many advantages in the electrochemical detection of peroxide without the presence of an enzyme, such as the improvement in stability and reproducibility and the possibility of obtaining simple and inexpensive devices [72]. Moreover, it is now possible to prepare noble metal NPs with a highly controllable size, shape, surface charge, and physicochemical characteristics for specific electrocatalytic applications [73][74][75].…”

Section: As Sensing Phase For Other Analytesmentioning

confidence: 99%

Screen-Printed Electrodes Modified with Metal Nanoparticles for Small Molecule Sensing

et al. 2020

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Recent progress in the field of electroanalysis with metal nanoparticle (NP)-based screen-printed electrodes (SPEs) is discussed, focusing on the methods employed to perform the electrode surface functionalization, and the final application achieved with different types of metallic NPs. The ink mixing approach, electrochemical deposition, and drop casting are the usual methodologies used for SPEs’ modification purposes to obtain nanoparticulated sensing phases with suitable tailor-made functionalities. Among these, applications on inorganic and organic molecule sensing with several NPs of transition metals, bimetallic alloys, and metal oxides should be highlighted.

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“…Various methods have been used to determine H 2 O 2 such as spectrophotometric, chemiluminescence, fluorescence, and chromatography [1,4]. However, those methods have some drawbacks such as low selectivity and sensitivity, long analysis time, and expensive equipment [4b].…”

Section: Introductionmentioning

confidence: 99%

“…Various methods have been used to determine H 2 O 2 such as spectrophotometric, chemiluminescence, fluorescence, and chromatography . However, those methods have some drawbacks such as low selectivity and sensitivity, long analysis time, and expensive equipment . On the other hand, electrochemical methods have a reasonable cost, high sensitivity and selectivity, short response time, and are easy to use .…”

Section: Introductionmentioning

confidence: 99%

“…However, those methods have some drawbacks such as low selectivity and sensitivity, long analysis time, and expensive equipment . On the other hand, electrochemical methods have a reasonable cost, high sensitivity and selectivity, short response time, and are easy to use . These excellent properties make enzymatic and non‐enzymatic sensors promising for the H 2 O 2 determination in biological or environmental areas.…”

Section: Introductionmentioning

confidence: 99%

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A Non‐enzymatic Ag/δ‐FeOOH Sensor for Hydrogen Peroxide Determination using Disposable Carbon‐based Electrochemical Cells

et al. 2020

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A non-enzymatic sensor for hydrogen peroxide (H 2 O 2) determination based on Ag/δ-FeOOH nanocomposite immobilized on an all-plastic disposable carbonbased electrochemical cell (DCell) is constructed by a rapid prototyping technique. Ag/δ-FeOOH is synthesized by a simple and reproducible method and its structural and morphological properties characterized by X-ray diffraction (XRD), Fourier transform-infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The Ag/δ-FeOOH is successfully immobilized on the DCell, as revealed by SEM images. The electrochemical investigation indicates that the Ag/δ-FeOOH/DCell has a good electrocatalytic response for the H 2 O 2 reduction, showing detection limit of 71 μmol L À 1 H 2 O 2 at a signal-tonoise ratio of 3 and analytical sensitivity of 215.4 μA mM À 1 cm À 2. Moreover, Ag/δ-FeOOH/DCell can be used to selectively detect H 2 O 2 in the presence of dopamine (DA), uric acid (UA), and ascorbic acid (AA). Finally, Ag/δ-FeOOH/DCell can be used to determine H 2 O 2 in fetal bovine serum. The achieved results indicate that the non-enzymatic Ag/δ-FeOOH/DCell is a costeffective alternative for the determination of H 2 O 2 .

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Recent advances in electrochemical nonenzymatic hydrogen peroxide sensors based on nanomaterials: a review

Cited by 139 publications

References 394 publications

Stable and Biocompatible Carbon Nanotube Ink Mediated by Silk Protein for Printed Electronics

Stable and Biocompatible Carbon Nanotube Ink Mediated by Silk Protein for Printed Electronics

Screen-Printed Electrodes Modified with Metal Nanoparticles for Small Molecule Sensing

A Non‐enzymatic Ag/δ‐FeOOH Sensor for Hydrogen Peroxide Determination using Disposable Carbon‐based Electrochemical Cells

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