Regulating Reactive Oxygen Species over M–N–C Single-Atom Catalysts for Potential-Resolved Electrochemiluminescence

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(17), С. 12197 - 12205

Опубликована: Апрель 17, 2024

The development of potential-resolved electrochemiluminescence (ECL) systems with dual emitting signals holds great promise for accurate and reliable determination in complex samples. However, the practical application such is hindered by inevitable mutual interaction mismatch between different luminophores or coreactants. In this work, first time, precisely tuning oxygen reduction performance M–N–C single-atom catalysts (SACs), we present a luminol ECL system employing endogenous dissolved O2 as coreactant. Using advanced situ monitoring theoretical calculations, elucidate intricate mechanism involving selective efficient activation through central metal species modulation. This modulation leads to controlled generation hydroxyl radical (·OH) superoxide (O2·–), which subsequently trigger cathodic anodic emission, respectively. well-designed Cu–N–C SACs, their moderate oxophilicity, enable simultaneous ·OH O2·–, thereby facilitating ECL. As proof concept, employed principal component analysis statistical method differentiate antibiotics based on output dual-potential signals. work establishes new avenue constructing platform single luminophore coreactant precise regulation active intermediates.

Язык: Английский

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Magnetic graphene oxide and vertically-ordered mesoporous silica film for universal and sensitive homogeneous electrochemiluminescence aptasensor platform

Microchemical Journal, Год журнала: 2024, Номер 200, С. 110315 - 110315

Опубликована: Март 12, 2024

Язык: Английский

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Inner filter effect-based fluorescence assays toward environmental pesticides and antibiotics

Coordination Chemistry Reviews, Год журнала: 2023, Номер 493, С. 215305 - 215305

Опубликована: Июнь 21, 2023

Язык: Английский

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Recent progress in signal enhancement of nanomaterials-based electrochemiluminescence systems

TrAC Trends in Analytical Chemistry, Год журнала: 2023, Номер 169, С. 117376 - 117376

Опубликована: Окт. 18, 2023

Язык: Английский

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Hollow cage-like PtCu nanozyme-regulated photo-activity of porous CdIn2S4/SnO2 heterojunctions for ultrasensitive PEC sensing of streptomycin

Biosensors and Bioelectronics, Год журнала: 2023, Номер 236, С. 115425 - 115425

Опубликована: Май 24, 2023

Язык: Английский

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Precise Modulation of Intramolecular Aggregation‐induced Electrochemiluminescence by Tetraphenylethylene‐based Supramolecular Architectures

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(46)

Опубликована: Сен. 25, 2023

Abstract The precisely modulated synthesis of programmable light‐emitting materials remains a challenge. To address this challenge, we construct four tetraphenylethylene‐based supramolecular architectures (SA, SB, SC, and SD), revealing that they exhibit higher electrochemiluminescence (ECL) intensities efficiencies than the tetraphenylethylene monomer can be classified as highly efficient intramolecular aggregation–induced (PI‐AIECL) systems. best‐performing system (SD) shows high ECL cathodic efficiency exceeding benchmark tris(2,2′‐bipyridyl)ruthenium(II) chloride in aqueous solution by nearly six‐fold. electrochemical characterization these an organic solvent provides deeper mechanistic insights, SD features lowest band gap. Density functional theory calculations indicate gap guest ligand structure is smallest most closely matched to host scaffold. Finally, used realize ECL‐based cysteine detection (detection limit=14.4 nM) real samples. Thus, study not only strategy allowing chromophores controllably regulated on molecular scale, but also inspires high‐performance aggregation‐induced emitters.

Язык: Английский

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Allosteric probe-triggered isothermal amplification to activate CRISPR/Cas12a for sensitive electrochemiluminescence detection of Salmonella

Food Chemistry, Год журнала: 2023, Номер 425, С. 136382 - 136382

Опубликована: Май 24, 2023

Язык: Английский

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Recent design strategies and applications of small molecule fluorescent probes for food detection

Coordination Chemistry Reviews, Год журнала: 2024, Номер 522, С. 216232 - 216232

Опубликована: Сен. 30, 2024

Язык: Английский

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A novel self-enhanced ECL-RET aptasensor based on the bimetallic MOFs with homogeneous catalytic sites for kanamycin detection

Analytica Chimica Acta, Год журнала: 2024, Номер 1304, С. 342524 - 342524

Опубликована: Март 28, 2024

Язык: Английский

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Ionic liquid-enhanced silica aerogels for the specific extraction and detection of aflatoxin B1 coupled with a smartphone-based colorimetric biosensor

Food Chemistry, Год журнала: 2024, Номер 447, С. 138917 - 138917

Опубликована: Март 1, 2024

Язык: Английский

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