Excited-State Intramolecular Proton Transfer-Driven Photon-Gating for Photoelectrochemical Sensing of CO-Releasing Molecule-3

Analytical Chemistry, Год журнала: 2024, Номер 96(12), С. 5014 - 5021

Опубликована: Март 14, 2024

Different from prevalent approaches such as immunological recognition, complementary base pairing, or enzymatic regulation in current photoelectrochemical (PEC) sensing, this study reported an excited-state intramolecular proton transfer (ESIPT)-driven photon-gating PEC sensor. The sensor is developed for the detection of CO-releasing molecule-3 (CORM-3) by modifying ESIPT-switched organic fluorescent probe molecule (NDAA) onto surface a p-type semiconductor (BiOI). NDAA can be excited and exhibit strong green fluorescence after responding with CORM-3, resulting electrode-interface photon competitive absorption effect due to switch on ESIPT considerably reducing photocurrent signal. experimental results revealed that as-developed achieved good analytical performance high selectivity sensitivity, linear range 0.01–1000 μM lower limit 6.5 nM. This work demonstrates great potential family advancing analysis. It anticipated our findings will stimulate creation diverse functional probes possessing distinctive characteristics inventive sensors.

Язык: Английский

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A bimetallic peroxidase-mimicking nanozyme with antifouling property for construction of sensor array to identify phosphoproteins and diagnose cancers

Biosensors and Bioelectronics, Год журнала: 2024, Номер 258, С. 116370 - 116370

Опубликована: Май 6, 2024

Язык: Английский

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Vanadium-doped metal-organic framework@Znln2S4 core-shell heterojunction-attenuated photoelectrochemical immunoassay

Talanta, Год журнала: 2024, Номер 275, С. 126110 - 126110

Опубликована: Апрель 14, 2024

Язык: Английский

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Metal organic framework-derived CuO/Cu2O polyhedron-CdS quantum dots double Z-scheme heterostructure for cathodic photoelectrochemical detection of Hg2+ in food and environment

Food Chemistry, Год журнала: 2024, Номер 450, С. 139261 - 139261

Опубликована: Апрель 9, 2024

Язык: Английский

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Upgraded and Light-Up Biosensing Platform: Entropy-Driven Catalysis Circuit Manipulates the Configuration Transformation of Novel DNA Silver Nanoclusters on the Graphene Oxide Surface

Analytical Chemistry, Год журнала: 2024, Номер 96(22), С. 9209 - 9217

Опубликована: Май 20, 2024

To tackle the predicament of traditional turn-off mechanism, exploring an activated turn-on system remains intriguing and crucial objective in biosensing fields. Herein, a dark DNA Ag nanocluster (NC) with hairpin-structured containing six-base cytosine loop (6C loop) as template is atypically synthesized. Intriguingly, NCs can be lit to display strong red-emission nanoclusters. Building upon these exciting findings, unprecedented upgraded [entropy-driven catalysis circuit (EDCC)-Ag NCs/graphene oxide (GO)] has been created, which employs EDCC precisely manipulate conformational transition on GO surface from adsorption desorption. Benefiting effective quenching signal amplification capability EDCC, newly developed EDCC-Ag NCs/GO displays high signal-to-background (S/B) ratio (26-fold) sensitivity (limit detection low 0.4 pM). Meanwhile, it good specificity, excellent stability, reliability both buffer biological samples. best our knowledge, first example that adopts modulate configuration transformation obtain biosensor background, fluorescence, contrast, sensitivity. This finding may provide new route fabricate novel based hairpin-templated optical imaging bioanalytical

Язык: Английский

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Near-Infrared-Responsive Photoelectrochemical Biosensors

TrAC Trends in Analytical Chemistry, Год журнала: 2024, Номер 179, С. 117890 - 117890

Опубликована: Июль 30, 2024

Язык: Английский

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Bi2WO6-labeled antibody induced photocurrent polarity switching of ZnIn2S4-based photoelectrochemical immunosensor for the highly sensitive detection of carcinoembryonic antigen

Talanta, Год журнала: 2025, Номер 288, С. 127723 - 127723

Опубликована: Фев. 11, 2025

Язык: Английский

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Construction of a fluorescent and colorimetric multi-mode aptasensor for label-free and sensitive detection of ochratoxin A in agricultural products

Sensors and Actuators B Chemical, Год журнала: 2024, Номер 410, С. 135677 - 135677

Опубликована: Март 22, 2024

Язык: Английский

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High-entropy (ZnCdCuAgCo)xS-triggered cocktail effect with cation-exchange reaction for in-situ amplified photoelectrochemical immunoassay

Sensors and Actuators B Chemical, Год журнала: 2024, Номер 412, С. 135798 - 135798

Опубликована: Апрель 9, 2024

Язык: Английский

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Target proteins-regulated DNA nanomachine-electroactive substance complexes enable separation-free electrochemical detection of clinical exosome

Biosensors and Bioelectronics, Год журнала: 2024, Номер 256, С. 116273 - 116273

Опубликована: Апрель 14, 2024

Язык: Английский

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