An improved non-enzymatic hydrogen peroxide sensor based on europium functionalized inorganic hybrid material—Evaluation of optical and electrochemical properties

Jin, Dongri; Sakthivel, Kavitha; Gandhi, Sakthivel; Lee, Yong‐Ill

doi:10.1016/j.snb.2016.06.078

Cited by 11 publications

(3 citation statements)

References 58 publications

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“…Hydrogen peroxide sensors are relevant since the use of H 2 O 2 is of great importance in clinical and environmental studies as well as in mining, pharmaceutical, textile, and food manufacturing industries . For this reason, much attention has been given to the development of chemical, biochemical, and electrochemical , sensors for this analyte since they provide high sensitivity, excellent selectivity, a rapid response, and good reliability.…”

Section: Part 2 Applications That Take Advantage Of Modifications At ...mentioning

confidence: 99%

Conducting Polymers in the Fields of Energy, Environmental Remediation, and Chemical–Chiral Sensors

et al. 2018

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Conducting polymers (CPs), thanks to their unique properties, structures made on-demand, new composite mixtures, and possibility of deposit on a surface by chemical, physical, or electrochemical methodologies, have shown in the last years a renaissance and have been widely used in important fields of chemistry and materials science. Due to the extent of the literature on CPs, this review, after a concise introduction about the interrelationship between electrochemistry and conducting polymers, is focused exclusively on the following applications: energy (energy storage devices and solar cells), use in environmental remediation (anion and cation trapping, electrocatalytic reduction/oxidation of pollutants on CP based electrodes, and adsorption of pollutants) and finally electroanalysis as chemical sensors in solution, gas phase, and chiral molecules. This review is expected to be comprehensive, authoritative, and useful to the chemical community interested in CPs and their applications.

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Section: Part 2 Applications That Take Advantage Of Modifications At ...mentioning

confidence: 99%

Conducting Polymers in the Fields of Energy, Environmental Remediation, and Chemical–Chiral Sensors

et al. 2018

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“…Rare earth elements, due to their unique properties of 4f-5d electronic orbitals, have attracted the attention of scientists who are considering the development of nanocomposites based on these elements for electrode modification, which would have the same function as noble metal nanocomposites [28,29]. Certain REEs are already used for electrochemical research [30,31]. Europium has been considered a significant lanthanide element with greater redox reaction behavior through its variable oxidation states [32].…”

Section: Introductionmentioning

confidence: 99%

Eu2O3@Cr2O3 Nanoparticles-Modified Carbon Paste Electrode for Efficient Electrochemical Sensing of Neurotransmitters Precursor L-DOPA

et al. 2023

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There are ten million people in the world who have Parkinson’s disease. The most potent medicine for Parkinson’s disease is levodopa (L-DOPA). However, long-term consumption of L-DOPA leads to the appearance of side effects, as a result of which the control and monitoring of its concentrations are of great importance. In this work, we have designed a new electrochemical sensor for detecting L-DOPA using a carbon paste electrode (CPE) modified with Eu2O3@Cr2O3 composite nanoparticles. Rare earth elements, including Eu, are increasingly used to design new electrode nanocomposites with enhanced electrocatalytic properties. Europium has been considered a significant lanthanide element with greater redox reaction behavior. We conducted a hydrothermal synthesis of Eu2O3@Cr2O3 and, for the first time, the acquired nanoparticles were used to modify CPE. The proposed Eu2O3@Cr2O3/CPE electrode was investigated in terms of its electrocatalytic properties and then used to develop an analytical method for detecting and quantifying L-DOPA. The proposed sensor offers a wide linear range (1–100 µM), high sensitivity (1.38 µA µM−1 cm−2) and a low detection limit (0.72 µM). The practical application of the proposed sensor was investigated by analyzing commercially available pharmaceutical tablets of L-DOPA. The corresponding results indicate the excellent potential of the Eu2O3@Cr2O3/CPE sensor for application in real-time L-DOPA detection.

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“…Many fluorescence probes showed strong affinity to react with H 2 O 2 and they were applied for H 2 O 2 detection in living cells [11,12,13,14,15]. However, these probes are commonly used by adding them to aqueous samples, and they cannot be reused [16,17,18,19,20]. Scientists are looking for new ways to convert fluorescence probes into optical sensors for reuse.…”

Section: Introductionmentioning

confidence: 99%

Development of Ratiometric Fluorescence Sensors Based on CdSe/ZnS Quantum Dots for the Detection of Hydrogen Peroxide

Duong

Rhee

2019

Sensors

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In this study, carboxyl group functionalized-CdSe/ZnS quantum dots (QDs) and aminofluorescein (AF)-encapsulated polymer particles were synthesized and immobilized to a sol–gel mixture of glycidoxypropyl trimethoxysilane (GPTMS) and aminopropyl trimethoxysilane (APTMS) for the fabrication of a hydrogen peroxide-sensing membrane. CdSe/ZnS QDs were used for the redox reaction of hydrogen peroxide (H2O2) via a reductive pathway by transferring electrons to the acceptor that led to fluorescence quenching of QDs, while AF was used as a reference dye. Herein, the ratiometric fluorescence intensity of CdSe/ZnS QDs and AF was proportional to the concentration of hydrogen peroxide. The fluorescence membrane (i.e., QD–AF membrane) could detect hydrogen peroxide in linear detection ranges from 0.1 to 1.0 mM with a detection limit (LOD) of 0.016 mM and from 1.0 to 10 mM with an LOD of 0.058 mM. The sensitivity of the QD–AF membrane was increased by immobilizing horseradish peroxidase (HRP) over the surface of the QD–AF membrane (i.e., HRP–QD–AF membrane). The HRP–QD–AF membrane had an LOD of 0.011 mM for 0.1–1 mM H2O2 and an LOD of 0.068 mM for 1–10 mM H2O2. It showed higher sensitivity than the QD–AF membrane only, although both membranes had good selectivity. The HRP–QD–AF membrane could be applied to determine the concentration of hydrogen peroxide in wastewater, while the QD–AF membrane could be employed for the detection of α-ketobutyrate.

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An improved non-enzymatic hydrogen peroxide sensor based on europium functionalized inorganic hybrid material—Evaluation of optical and electrochemical properties

Cited by 11 publications

References 58 publications

Conducting Polymers in the Fields of Energy, Environmental Remediation, and Chemical–Chiral Sensors

Conducting Polymers in the Fields of Energy, Environmental Remediation, and Chemical–Chiral Sensors

Eu2O3@Cr2O3 Nanoparticles-Modified Carbon Paste Electrode for Efficient Electrochemical Sensing of Neurotransmitters Precursor L-DOPA

Development of Ratiometric Fluorescence Sensors Based on CdSe/ZnS Quantum Dots for the Detection of Hydrogen Peroxide

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