(Pc)Eu(Pc)Eu[trans-T(COOCH3)2PP]/GO Hybrid Film-Based Nonenzymatic H2O2 Electrochemical Sensor with Excellent Performance

Yu, Zhenning; Zou, Lei; Chen, Yanli; Jiang, Jianzhuang

doi:10.1021/acsami.6b08760

Cited by 34 publications

(7 citation statements)

References 67 publications

(127 reference statements)

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“…In addition, very complex hybrid-film based electrochemical sensors, incorporating graphene, have been used for H 2 O 2 determinations with an impressive sensitivity. 308,309 Specifically, depending on the respective combination of graphene or graphene oxide with additional materials, the detection limit for H 2 O 2 ranges from 6 pM up to 10 μM concentrations [compare tables 1, 2 and 3 in the recent review by Zhang et al 283 ]. Dual-and multi-mode sensors.-Some graphene-based or carbonnanotube sensors (3 rd generation) were fabricated in a way that allows determining two (or more) different substances with the same sensor, however applying specific settings of the measurement.…”

Section: G87mentioning

confidence: 99%

Review—Quantification of Hydrogen Peroxide by Electrochemical Methods and Electron Spin Resonance Spectroscopy

Gulaboski

Mirčeski

Kappl

et al. 2019

J. Electrochem. Soc.

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Reactive oxygen species (ROS) exhibit different spatial and temporal distributions as well as concentrations in-and outside the cell, thereby functioning as signaling or pathogen-destroying molecules. Especially the ROS H 2 O 2 is important for the patho/physiological status of an organism. Electrochemistry (EM) and electron spin resonance (ESR)-based techniques allow quantification of H 2 O 2 in artificial and living systems, coping a concentration range from low nM up to mM. Working electrodes for EM are optimized by diverse modifications and, additionally, redox mediators are used. Ultramicroelectrodes allow scanning of single cells to spatially resolve and quantify extracellular H 2 O 2 in real-time. With ESR spectroscopy, • O 2¯, but not H 2 O 2 , can be directly determined by spin probes in-and outside of cells in suspensions. Monitoring H 2 O 2 requires formation of intermediate radicals, detectable with spin probes. Low μM [H 2 O 2 ] can thus be assessed specifically. Using suitable spin traps, in-vivo ESR and immuno-spin trapping can visualize different radicals at their respective production sites in small animals, organs and tissues. Here, the redox reaction cascades may interfere with cell metabolism. Optimization of all methods established for H 2 O 2 determination would be favorable to finally combine them for mutual validation. Thus, a deeper insight into cellular ROS metabolism can be obtained.

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Section: G87mentioning

confidence: 99%

Review—Quantification of Hydrogen Peroxide by Electrochemical Methods and Electron Spin Resonance Spectroscopy

Gulaboski

Mirčeski

Kappl

et al. 2019

J. Electrochem. Soc.

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“…Conversely, as the electronic properties of the macrocycle are not deeply modified by the graphene substrate, such systems should retain the remarkable intrinsic properties of the macrocyclic complex. Indeed such hybrid materials have been actively explored for catalytic, (bio)‐sensing properties, or optical properties …”

Section: Discussionmentioning

confidence: 99%

“…Due to the absence of band gap around the Fermi level, numerous approaches have been developed using molecular doping to tailor the transport properties of graphene‐based devices for nano‐electronic and photonic applications . More generally the chemical functionalization of graphene is crucial for a variety of technological applications including novel electronics or spintronic devices, photodetectors, catalysis, molecular sensors, field‐effect transistors, new energy materials, or novel hybrid species with original properties . In this context, the noncovalent functionalization based on π –π stacking is usually preferred to covalent treatments which may degrade the aromaticity of the carbon surface by creating sp 3 carbon defects, thus, lowering the high carrier mobility …”

Section: Introductionmentioning

confidence: 99%

Combined molecular and periodic DFT analysis of the adsorption of co macrocycles on graphene

2017

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The molecular doping of graphene with π-stacked conjugated molecules has been widely studied during the last 10 years, both experimentally or using first-principle calculations, mainly with strongly acceptor or donor molecules. Macrocyclic metal complexes have been far less studied and their behavior on graphene is less clear-cut. The present density functional theory study of cobalt porphyrin and phthalocyanine adsorbed on monolayer or bilayer graphene allows to compare the outcomes of two models, either a finite-sized flake of graphene or an infinite 2D material using periodic calculations. The electronic structures yielded by both models are compared, with a focus on the density of states around the Fermi level. Apart from the crucial choice of calculation conditions, this investigation also shows that unlike strongly donating or accepting organic dopants, these macrocycles do not induce a significant doping of the graphene sheet and that a finite size model of graphene flake may be confidently used for most modeling purposes. © 2017 Wiley Periodicals, Inc.

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“…The introduction of acrylic moieties is in this case an another example of π-electron system expansion useful in the electrochemical reduction of hydrogen peroxide. In addition, an interesting sensing material was used in studies performed by Yu et al where a triple-decker phthalocyanineporphyrin europium(III) complex (Figure 7) was non-covalently attached to graphene oxide and multi-layer hybrid films were obtained [97]. Tert-butyl hydrogen peroxide was detected with good sensitivity and long-term stability on modified GC electrode by Jin et al with the use of unsubstituted iron(II) phthalocyanine non-covalently attached to reduced graphene oxide, doped by Fe3O4 nanoparticles [98].…”

Section: Biomarkers Sensing 61 Peroxidesmentioning

confidence: 99%

Azaporphyrins Embedded on Carbon-Based Nanomaterials for Potential Use in Electrochemical Sensing—A Review

2021

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Phthalocyanines and porphyrazines as macrocyclic aza-analogues of well-known porphyrins were deposited on diverse carbon-based nanomaterials and investigated as sensing devices. The extended π-conjugated electron system of these macrocycles influences their ability to create stable hybrid systems with graphene or carbon nanotubes commonly based on π–π stacking interactions. During a 15-year period, the electrodes modified by deposition of these systems have been applied for the determination of diverse analytes, such as food pollutants, heavy metals, catecholamines, thiols, glucose, peroxides, some active pharmaceutical ingredients, and poisonous gases. These procedures have also taken place, on occasion, in the presence of various polymers, ionic liquids, and other moieties. In the review, studies are presented that were performed for sensing purposes, involving azaporphyrins embedded on graphene, graphene oxide or carbon nanotubes (both single and multi-walled ones). Moreover, possible methods of electrode fabrication, limits of detection of each analyte, as well as examples of macrocyclic compounds applied as sensing materials, are critically discussed.

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(Pc)Eu(Pc)Eu[trans-T(COOCH₃)₂PP]/GO Hybrid Film-Based Nonenzymatic H₂O₂ Electrochemical Sensor with Excellent Performance

Cited by 34 publications

References 67 publications

Review—Quantification of Hydrogen Peroxide by Electrochemical Methods and Electron Spin Resonance Spectroscopy

Review—Quantification of Hydrogen Peroxide by Electrochemical Methods and Electron Spin Resonance Spectroscopy

Combined molecular and periodic DFT analysis of the adsorption of co macrocycles on graphene

Azaporphyrins Embedded on Carbon-Based Nanomaterials for Potential Use in Electrochemical Sensing—A Review

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