Dual-signal ratiometric electrochemiluminescence biosensor based on Au NPs-induced low-potential emission of PFO Pdots and LSPR-ECL mechanism for ultra-sensitive detection of microRNA-141

Biosensors and Bioelectronics, Journal Year: 2024, Volume and Issue: 261, P. 116495 - 116495

Published: June 11, 2024

Language: Английский

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From theory to practice: understanding the challenges in the implementation of electrogenerated chemiluminescence for analytical applications

Microchimica Acta, Journal Year: 2024, Volume and Issue: 191(6)

Published: May 31, 2024

Electrogenerated chemiluminescence (ECL) stands out as a remarkable phenomenon of light emission at electrodes initiated by electrogenerated species in solution. Characterized its exceptional sensitivity and minimal background optical signals, ECL finds applications across diverse domains, including biosensing, imaging, various analytical applications. This review aims to serve comprehensive guide the utilization Beginning with brief exposition on theory basis generation, we elucidate systems employed initiate ECL. Furthermore, delineate principal utilized for generation contexts, elucidating both advantages challenges inherent their use. Additionally, provide an overview different electrode materials novel ECL-based protocols tailored purposes, specific emphasis biosensing

Language: Английский

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Overcoming Kinetic Barriers of Remote Electrochemiluminescence on Boron-Doped Diamond via Catalytic Coreactant Oxidation

Chemical Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Using an Ir( iii )-based redox mediator ([Ir(sppy) 3 ] 3- ) overcomes the traditional kinetic barrier of tri- n -propylamine oxidation on BDD, enhancing ECL from Ru( ii )-labeled beads by up to 46-fold.

Language: Английский

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Generation of Rare Sugars by Electrochemical Oxidation of d-Glucose Using Boron-Doped Diamond Electrode

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: May 8, 2025

The electrochemical oxidation of biomass for the production value-added chemicals represents a promising approach in field sustainable chemistry. In this study, we investigated conversion d-glucose, biomass-derived compound, using boron-doped diamond (BDD) electrodes under constant applied current (10 mA) or potentials (1.5-3.0 V vs Ag/AgCl). reaction products were analyzed high-performance liquid chromatography (HPLC) and chromatography/mass spectrometry (LC/MS) measurements, employing both p-aminobenzoic acid ethyl ester (ABEE) l-tryptophan amide labeling methods to enable characterization. results demonstrated that BDD achieved 95.9% d-glucose degradation successfully generated various rare sugars, including d-arabinose (0.126 mmol/L), d-erythrose (0.0544 d-glyceraldehyde, l-glyceraldehyde (combined 0.148 mmol/L). Under identical conditions, Pt as control showed only 10.2% with significantly lower sugar yields. potential influenced product distribution, optimal observed at 2.5 Ag/AgCl, reflecting balance between glucose degradation. Mechanistic studies suggest formation sugars involves series decarboxylation reactions, facilitated by electrochemically active species. superior performance is attributed their wide window, efficient generation oxidizing species, unique surface characteristics. This research provides new insights into transformation compounds demonstrates high-value opening avenues applications food science, pharmaceuticals, green

Language: Английский

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Cutting-Edge Exploration of a Molecularly Imprinted Polymer-Coupled Electrochemiluminescence Mechanism Based on Organic Cation Side-Chain Construction for the Identification and Detection of Escherichia coli O157: H7

ACS Sensors, Journal Year: 2025, Volume and Issue: unknown

Published: May 15, 2025

In this paper, an organic semiconductor bacterial biosensor was developed for selective detection of facultative anaerobic Escherichia coli O157: H7, which combines electrochemiluminescence (ECL) and imprinted polymer technologies. Fe2+ Mn2+ were used to prepare irregular nanocluster ECL emitters (Fe-Mn NCs) via Cu2O, served as excellent catalysts in the cathodic coreactant (K2S2O8) reaction system, enhance signal intensity. Through electropolymerization, cationic side chains functional monomers could bind proteins (such cytochrome proteins) on cell membrane E. H7 under aerobic conditions, transfer interior participate cyclic regeneration nicotinamide adenine dinucleotide, greatly amplifies detected accelerates consumption oxygen by respiratory chain. When consumed, lactic acid produced bacteria during low-oxygen process, can cause a change direction electron flow, resulting reduction production SO4•- significant decrease signal. And when readded recovers or becomes even stronger, where mechanism action semiconductors system had been well elucidated. This sensor has good linear relationship range 101-108 CFU/mL, with limit 2.29 CFU/mL (S/N = 3), offers new method foodborne pathogens, rapid accessible identification tool different types microorganisms.

Language: Английский

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AC-Bipolar Electrosynthesis and Luminol Electrochemiluminescence Imaging of Poly(3,4-ethylenedioxythiophene) and Its Composite Films

ACS Applied Polymer Materials, Journal Year: 2023, Volume and Issue: 5(8), P. 6186 - 6198

Published: July 7, 2023

Herein, we report the in-plane growth of poly(3,4-ethylenedioxythiophene) (PEDOT) thin films and their composites, such as PEDOT-copper (PEDOT-Cu) PEDOT-polythiophene (PEDOT-PT), on a nonconductive substrate by alternating current (AC)-bipolar electropolymerization subsequent use wireless electrodes for generation luminol electrochemiluminescence (ECL). By using gold (Au) wire bipolar electrode (BPE), PEDOT film was initially fabricated exploiting aforementioned electrochemical technique. Successively, fabrication PEDOT-Cu or PEDOT-PT composite accomplished AC-bipolar electrolysis step, where employed BPE to drive cathodic electrodeposition copper particles anodic thiophene, respectively. Additionally, all polymer were further BPEs ECL, which resulted in an intense light emission that could be imaged with common digital camera. Interestingly, have found intensity spatial distribution generated from ECL reaction revealed characteristics different can correlated conductivity composition material.

Language: Английский

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Modification of boron-doped diamond electrode with polyaniline and gold particles to enhance the electrochemiluminescence of luminol for the detection of reactive oxygen species (hydrogen peroxide and hypochlorite)

Diamond and Related Materials, Journal Year: 2024, Volume and Issue: 144, P. 110956 - 110956

Published: Feb. 29, 2024

Language: Английский

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Imaging Wireless Electrode Reactions by Bipolar Electrochemiluminescence

Electrochemistry, Journal Year: 2024, Volume and Issue: 92(10), P. 101007 - 101007

Published: Aug. 6, 2024

The coupling between bipolar electrochemistry and electrochemiluminescence (ECL) technologies has resulted in a fascinating field of the academic research, because advantages both techniques are often emphasized their combined form.For instance, light emission resulting from an electrochemical reaction typical ECL process can be exploited for reporting redox events occurring on wireless electrode (BPE).After introducing concept electrochemiluminescence, this comprehensive paper summarizes most recent research results author aforementioned area at Tokyo Institute Technology during her multi-year stay as overseas researcher.These include development analytical tool based imaging to map potential distribution different types cells, characterization conducting polymer materials ability promote reaction.Such findings assessed relation current literature scenario, whereas future perspectives also discussed end manuscript.

Language: Английский

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Electrochemiluminescence Systems for Metal‐Ion Detection: A Systematic Review

ChemistrySelect, Journal Year: 2024, Volume and Issue: 9(21)

Published: June 3, 2024

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

Language: Английский

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Simple hydrated electron-induced electrochemiluminescence determination of alkaline phosphatase with novel time-resolved internal standard strategy at boron doped diamond electrodes

Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: 417, P. 136212 - 136212

Published: June 28, 2024

Language: Английский

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