A novel nonenzymatic hydrogen peroxide amperometric sensor based on Pd@CeO2-NH2 nanocomposites modified glassy carbon electrode

Güler, Muhammet; Türkoğlu, Vedat; Kıvrak, Arif; Karahan, Fatih

doi:10.1016/j.msec.2018.04.084

Cited by 23 publications

(7 citation statements)

References 55 publications

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“…H 2 O 2 is an important representative of the reactive oxygen species related to lots of cellular life activities, and is a potential biomarker for cancer cells [28][29][30]. In order to better explore the physiological processes of early-stage cancer cells, the monitoring of H 2 O 2 levels in the cell environment is crucial.…”

Section: Detection Of H 2 O 2 Released From Normal Cells and Living Cancer Cellsmentioning

confidence: 99%

An Electrochemical Sensor Based on Chalcogenide Molybdenum Disulfide-Gold-Silver Nanocomposite for Detection of Hydrogen Peroxide Released by Cancer Cells

Zhang

et al. 2020

Sensors

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Hydrogen peroxide (H2O2) as a crucial signal molecule plays a vital part in the growth and development of various cells under normal physiological conditions. The development of H2O2 sensors has received great research interest because of the importance of H2O2 in biological systems and its practical applications in other fields. In this study, a H2O2 electrochemical sensor was constructed based on chalcogenide molybdenum disulfide–gold–silver nanocomposite (MoS2-Au-Ag). Transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and energy dispersive spectroscopy (EDS) were utilized to characterize the nanocomposites, and the electrochemical performances of the obtained sensor were assessed by two electrochemical detection methods: cyclic voltammetry and chronoamperometry. The results showed that the MoS2-Au-Ag-modified glassy carbon electrode (GCE) has higher sensitivity (405.24 µA mM−1 cm−2), wider linear detection range (0.05–20 mM) and satisfactory repeatability and stability. Moreover, the prepared sensor was able to detect the H2O2 discharge from living tumor cells. Therefore, this study offers a platform for the early diagnosis of cancer and other applications in the fields of biology and biomedicine.

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Section: Detection Of H 2 O 2 Released From Normal Cells and Living Cancer Cellsmentioning

confidence: 99%

An Electrochemical Sensor Based on Chalcogenide Molybdenum Disulfide-Gold-Silver Nanocomposite for Detection of Hydrogen Peroxide Released by Cancer Cells

Zhang

et al. 2020

Sensors

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“…H 2 O 2 , which has a wide area of use, plays a role in many fields such as textile industry, organic synthesis, pharmaceutical research, cosmetics, and food processing. It is also used as an oxidant in fuel cell systems [3]. As an example, H 2 O 2 added to food as an antimicrobial agent has been approved by the Food and Drug Administration (FDA) [4].…”

Section: Introductionmentioning

confidence: 99%

Non‐enzymatic hydrogen peroxide sensor based on palladium‐decorated poly(thionine) modified glassy carbon electrode

Sönmez Çelebi,

Kırlak Kara

2024

J Chinese Chemical Soc

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Glassy carbon electrode was modified with palladium‐decorated conducting poly(thionine) film to develop a simple, cost‐effective, and fast amperometric sensor for the detection of H2O2. Conducting PTH film served as a porous and stable support matrix for even distribution of the Pd nanomaterials. In order to get the maximum performance from the modified electrode system, experimental conditions were optimized using chronoamperometry. The Pd/PTH@GCE electrode showed maximum performance in buffer solution at pH = 7.5 meaning it is suitable for the detection of H2O2 at physiological pH (7.4). Scanning Electron Microscopy was performed for physical characterization of the modified electrodes using pencil graphite electrodes. The active surface area for Pd/PTH‐modified GCE was calculated as 1.103 cm2. The linear concentration range was determined as 0.2–7.0 mM and its sensitivity was determined as 40.0 μA mM−1. The detection limit (LOD) of the sensor was calculated as 12.3 μM with a signal/noise ratio of 3.

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“…39 The use of amino silane groups as a coupling agent can activate cerium oxide for functionalization with amine groups. 36,40–43…”

Section: Introductionmentioning

confidence: 99%

“…39 The use of amino silane groups as a coupling agent can activate cerium oxide for functionalization with amine groups. 36,[40][41][42][43] Immobilization is a key step in the aptasensor fabrication process because it will affect the overall performance of the electrochemical sensor. An immobilized bioreceptor with good orientation and the stability of the bioreceptor on the electrode surface allows an increase in the binding capacity of the target.…”

Section: Introductionmentioning

confidence: 99%

CeO₂@NH₂ functionalized electrodes for the rapid detection of SARS-CoV-2 spike receptor binding domain

et al. 2023

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A novel nonenzymatic hydrogen peroxide amperometric sensor based on Pd@CeO2-NH2 nanocomposites modified glassy carbon electrode

Cited by 23 publications

References 55 publications

An Electrochemical Sensor Based on Chalcogenide Molybdenum Disulfide-Gold-Silver Nanocomposite for Detection of Hydrogen Peroxide Released by Cancer Cells

An Electrochemical Sensor Based on Chalcogenide Molybdenum Disulfide-Gold-Silver Nanocomposite for Detection of Hydrogen Peroxide Released by Cancer Cells

Non‐enzymatic hydrogen peroxide sensor based on palladium‐decorated poly(thionine) modified glassy carbon electrode

CeO₂@NH₂ functionalized electrodes for the rapid detection of SARS-CoV-2 spike receptor binding domain

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A novel nonenzymatic hydrogen peroxide amperometric sensor based on Pd@CeO2-NH2 nanocomposites modified glassy carbon electrode

Cited by 23 publications

References 55 publications

An Electrochemical Sensor Based on Chalcogenide Molybdenum Disulfide-Gold-Silver Nanocomposite for Detection of Hydrogen Peroxide Released by Cancer Cells

An Electrochemical Sensor Based on Chalcogenide Molybdenum Disulfide-Gold-Silver Nanocomposite for Detection of Hydrogen Peroxide Released by Cancer Cells

Non‐enzymatic hydrogen peroxide sensor based on palladium‐decorated poly(thionine) modified glassy carbon electrode

CeO2@NH2 functionalized electrodes for the rapid detection of SARS-CoV-2 spike receptor binding domain

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Product

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About

CeO₂@NH₂ functionalized electrodes for the rapid detection of SARS-CoV-2 spike receptor binding domain