An Electrochemiluminescent Biosensor Based on Interactions between a Graphene Quantum Dot−Sulfite Co-reactant System and Hydrogen Peroxide
نویسندگان
چکیده
منابع مشابه
Nanomaterial-Based Electrochemical Hydrogen Peroxide Biosensor
Hydrogen peroxide (H2O2) is well-known oxidizing, bleaching agent and also one of the significant by-products of diverse regulating biological processes. It has been recognized as a threat in the progression of atherosclerosis, renal disease, ageing and other diseases. Hence, determination of H2O2 in trace levels in biological samples is of great importance. This article briefly reviews the ele...
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To explore the possibility of using graphene based biosensor, adsorption of hydrogen peroxide on graphene has been investigated using density functional theory. The electronic properties of defect free and defective graphene in the presence of different number of hydrogen peroxide have been studied. The graphene with the most stable configuration defect named as SW defect is considered. The hig...
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SnO2 nanorod array grown directly on alloy substrate has been employed as the working electrode of H2O2 biosensor. Single-crystalline SnO2 nanorods provide not only low isoelectric point and enough void spaces for facile horseradish peroxidase (HRP) immobilization but also numerous conductive channels for electron transport to and from current collector; thus, leading to direct electrochemistry...
متن کاملThermodynamic study of an effective catalytic system, hydrogen peroxide and methyltrioxorhenium
The thermodynamic of the known and very effective catalytic system, hydrogen peroxide (H2O2) and methyltrioxorhenium (MTO) is studied in different solvents using UV-Visible spectroscopic method. The thermodynamic parameters (ΔG, ΔH and ΔS) for two equilibrium reactions, MTO + H2O2 ⇌ A + H2O and A + H2O2 ⇌ B.H2O (A, [MeRe(O)2(O2)]; B.H2O, [MeRe(OH2)(O)(O2)2]), are determined. The obtained free e...
متن کاملFabrication of a hydrogen peroxide biosensor based on a self-assemble composite oxide film.
A titania film with horseradish peroxidase (HRP) was immobilized on indium tin oxide (ITO) electrodes to act as a biosensor of hydrogen peroxide via the self-assembling and sol-gel route. The film was characterized by the atomic functional microscopy, electrochemical and UV-vis spectroscopy methods. The resulting biosensor exhibited fast amperometric response and good stability to hydrogen pero...
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ژورنال
عنوان ژورنال: ChemElectroChem
سال: 2017
ISSN: 2196-0216
DOI: 10.1002/celc.201600921