Diamond Electrodes for Electrogenerated Chemiluminescence

Fiorani, Andrea; Irkham, Irkham; Valenti, G.; Einaga, Yasuaki; Paolucci, Francesco

doi:10.1002/9781119468288.ch9

Cited by 7 publications

(6 citation statements)

References 134 publications

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“…Compared with that of the GCE, the ECL intensity of the NG-modified GCE is improved 10-fold. Meanwhile, the Fe−N−C SAC-modified GCE exhibits a significantly enhanced ECL signal (approximately 30-fold that of GCE; 4-fold as much as NG), with an onset potential of −1.46 V attributed to Ru(bpy) 3 2+ / Ru(bpy) 3 + (Figure S4A) and a maximum potential of about −1.72 V. 12 Furthermore, the PDS activation capacity of different catalysts was also recorded by cyclic voltammetry (CV) to deeply investigate the underlying reason of ECL enhancement. As exhibited in Figure 3A 2+ solution (Figure S4B), and the weak ECL emission is attributed to excited oxygen species generated by PDS when only PDS is present in the solution.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Iron Single-Atom Catalyst-Enabled Peroxydisulfate Activation Enhances Cathodic Electrochemiluminescence of Tris(bipyridine)ruthenium(II)

Luo

et al. 2023

Anal. Chem.

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The tris(bipyridine)ruthenium(II) (Ru(bpy) 3 2+ )−tripropylamine anodic electrochemiluminescence (ECL) system has been widely applied in commercial bioanalysis. However, the presence of amine compounds in the biological environment results in unavoidable anodic interference signals, which hinder further extensive use of the system. In contrast, the cathodic Ru(bpy) 32+ ECL system can overcome these limitations. The Ru(bpy) 3 2+ /peroxydisulfate (S 2 O 8 2−, PDS) ECL system has been extensively employed due to its ability to produce a sulfate radical anion (SO 4•− ) with strong oxidation ability, which enhances the ECL signal. However, the symmetrical molecular structure of PDS makes it challenging to be activated and causes low luminescence efficiency. To address this issue, we propose an efficient Ru(bpy) 3 2+ -based ternary ECL system that uses the iron−nitrogen−carbon single-atom catalyst (Fe−N−C SAC) as an advanced accelerator. Fe−N−C SAC can efficiently activate PDS into reactive oxygen species at a lower voltage, which significantly boosts the cathodic ECL emission of Ru(bpy) 3 2+ . Benefiting from the outstanding catalytic activity of Fe−N−C SAC, we successfully established an ECL biosensor that detects alkaline phosphatase activity with high sensitivity, demonstrating the feasibility of practical application.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Iron Single-Atom Catalyst-Enabled Peroxydisulfate Activation Enhances Cathodic Electrochemiluminescence of Tris(bipyridine)ruthenium(II)

Luo

et al. 2023

Anal. Chem.

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“…Another carbon‐based electrode that has been developed for ECL systems is the boron‐doped diamond (BDD) electrode. BDD electrode is p‐type semiconductor materials with many advantages compared to other electrodes, including wide potential windows, low capacitive currents, high chemical and physical stability, the ability to withstand high potentials, and better fouling resistance than conventional electrodes [131] . Accordingly, BDD electrode have been employed in a wide range electrochemical system, mostly for sensors and biosensors [144–148] and electrocatalysts [149–151] .…”

Section: Electrochemiluminescence Systemsmentioning

confidence: 99%

Electrochemiluminescence Systems for Metal‐Ion Detection: A Systematic Review

Harmesa,

Wahyudi,

Saefumillah

et al. 2024

ChemistrySelect

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Electrogenerated chemiluminescence or electrochemiluminescence (ECL) is a chemiluminescence phenomenon generated by electrochemical reactions. Applying this phenomenon for metal ions detections is potentially effectual as it provides excellent selectivity and sensitivity as well as the ease of use and economical cost. Accordingly, the detection methods of many trace metals have been successfully developed by employing ECL systems, including Hg(II), Pb(II), Cu(II), Cd(II), Fe(III), Ag(I), Co(II), Cr(III), Cr(VI), Ni(II), and As(III). There are several key components required to comprise the ECL systems, including luminophores that emit light and are directly proportionate toward metal concentrations, co‐reactants that increase the number of excited luminophores, and electrodes where the electron transfer occurs. Some new ECL systems comprising luminophores, co‐reactants, and electrodes have been developed to achieve impressive measurement results with low detection limits. This paper aims to provide a comprehensive illustration concerning the development of ECL‐based metal sensors, to elucidate a development overview of key elements employed in ECL systems and their modifications, explaining the different types of interactions due to the presence of metal ions in ECL systems, as well as to discuss the future opportunities and challenges of the ECL systems.

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“…25,26 In this system, tripropylamine [27][28][29][30][31] is generally used as a co-reactant; however, we employed DEEA because of its high water solubility. In addition, we compared the four electrodes using [Ru(bpy) 3 ] 2+ /Na 2 S 2 O 8 32,33 as a water-soluble cathodic luminophore/co-reactant system for ECL (Fig. 1b).…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Electrochemiluminescence by Au Paste Electrode for Bipolar Electroanalysis

ENDO,

KUBOTA,

ITO-SASAKI

et al. 2024

Electrochemistry

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Anodic and cathodic systemUsing bipolar electrode systemCarbon paste electrodes (CPEs) are widely used because of their malleability and ease of modification of functional molecules. This study introduces the application of Au paste electrodes (AuPEs) as a method for amplifying electrochemiluminescence (ECL), with a focus on bipolar electrochemical analyses. First, the ECL intensities generated by the cathodic and anodic reactions of [Ru(bpy) 3 ] 2+ at the glassy carbon disc electrode, Au disc electrode, carbon paste electrode, and AuPE was compared using a three-electrode system. We confirmed that the utilization of the AuPEs resulted in ECL intensities that were 1.4-1.7 times higher than those achieved through the use of other electrodes. A similar ECL enhancement effect was observed with the AuPE mixed with N,N′-dimethyl-3,4,9,10-perylenetetracarboxylicdiimide (PDI-CH 3 ) as a cathodic luminophore. This PDI-CH 3 mixed AuPE was used as the cathode in a closed bipolar electrode system. The system successfully detected dopamine concentrations of 1.0 mmol dm −3 in a sample cell. We hypothesize that the observed enhancements in the ECL were attributable to the surface plasmon field-enhancement effect of the Au particles. These results can be applied to highly sensitive bipolar electrochemical microscopy for imaging the dynamics of intracellular transmitter molecules.

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Diamond Electrodes for Electrogenerated Chemiluminescence

Cited by 7 publications

References 134 publications

Iron Single-Atom Catalyst-Enabled Peroxydisulfate Activation Enhances Cathodic Electrochemiluminescence of Tris(bipyridine)ruthenium(II)

Iron Single-Atom Catalyst-Enabled Peroxydisulfate Activation Enhances Cathodic Electrochemiluminescence of Tris(bipyridine)ruthenium(II)

Electrochemiluminescence Systems for Metal‐Ion Detection: A Systematic Review

Enhancement of Electrochemiluminescence by Au Paste Electrode for Bipolar Electroanalysis

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