Ratiometric fluorescent signals-driven smartphone-based portable sensors for onsite visual detection of food contaminants

Coordination Chemistry Reviews, Год журнала: 2022, Номер 458, С. 214442 - 214442

Опубликована: Фев. 9, 2022

Язык: Английский

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Engineering an Enzymatic Cascade Catalytic Smartphone-Based Sensor for Onsite Visual Ratiometric Fluorescence–Colorimetric Dual-Mode Detection of Methyl Mercaptan

Environmental Science & Technology, Год журнала: 2023, Номер 57(4), С. 1680 - 1691

Опубликована: Янв. 16, 2023

Precise and reliable onsite detection of methyl mercaptan (CH3SH) is great significance for environmental surveillance. Here, we synthesized a novel blue fluorescence nanozyme CeO2@TPE with high peroxidase-like activity by employing aggregation-induced emission (AIE) tetraphenylethene (TPE) to embed into hollow CeO2 nanospheres. In the presence ethanol oxidase (AOX) o-phenylenediamine (OPD), engineered an enzymatic cascade activation ratiometric fluorescence-colorimetric dual-mode system AOX/CeO2@TPE + OPD toward CH3SH. this design, CH3SH initiated AOX catalytic convert it H2O2 activating CeO2@TPE, producing •OH oxidizing naked-eye colorless deep yellow 2,3-diaminophenazine (DAP) absorption enhancement at ∼425 nm, companied new peak ∼550 nm match intrinsic ∼441 observing response, enabling analysis. Interestingly, both colorimetric signals could be gathered being converted hue parameter on smartphone-based sensor, achieving visual in real media acceptable results. This study gave insight designing target-responsive system-based efficient point-of-care sensors safeguarding health.

Язык: Английский

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Recent Advances in Optical Sensing for Tetracycline Antibiotics

TrAC Trends in Analytical Chemistry, Год журнала: 2024, Номер 178, С. 117839 - 117839

Опубликована: Июль 3, 2024

Язык: Английский

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Recent progress of smartphone-assisted microfluidic sensors for point of care testing

TrAC Trends in Analytical Chemistry, Год журнала: 2022, Номер 157, С. 116792 - 116792

Опубликована: Окт. 7, 2022

Язык: Английский

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Recent advances in turn off-on fluorescence sensing strategies for sensitive biochemical analysis - A mechanistic approach

Microchemical Journal, Год журнала: 2022, Номер 179, С. 107511 - 107511

Опубликована: Апрель 18, 2022

Fluorescence materials have received much attention in scientific studies because of their potential uses cell imaging, photonic devices, and sensors. Sensors based on the combination fluorescence techniques with various luminescent nanomaterials recently been developed for selective sensitive sensing biochemical molecules these nanoparticles. This review provides a summary most recent applications fluorescence-based analytical techniques. Downshifting upconversion procedures are discussed to briefly introduce principles underlying luminescence material. Following that, findings (2019–2022) assays presented, along classification "turn-off" "turn-on" approaches. In addition, we how differentiate quenching/enhancement mechanisms using unique spectroscopy

Язык: Английский

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FRET-based innovative assays for precise detection of the residual heavy metals in food and agriculture-related matrices

Coordination Chemistry Reviews, Год журнала: 2022, Номер 469, С. 214676 - 214676

Опубликована: Июнь 22, 2022

Язык: Английский

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An intrinsic dual-emitting fluorescence sensing toward tetracycline with self-calibration model based on luminescent lanthanide-functionalized metal-organic frameworks

Food Chemistry, Год журнала: 2022, Номер 400, С. 133995 - 133995

Опубликована: Авг. 23, 2022

Язык: Английский

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Colorimetric and electrochemical detection platforms for tetracycline based on surface molecularly imprinted polyionic liquid on Mn3O4 nanozyme

Biosensors and Bioelectronics, Год журнала: 2022, Номер 216, С. 114650 - 114650

Опубликована: Авг. 24, 2022

Язык: Английский

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A novel fluorescence resonance energy transfer (FRET)-based paper sensor with smartphone for quantitative detection of Vibrio parahaemolyticus

Food Control, Год журнала: 2022, Номер 145, С. 109412 - 109412

Опубликована: Сен. 28, 2022

Язык: Английский

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Recent advances in aggregation-induced emission (AIE)-based chemosensors for the detection of organic small molecules

Materials Chemistry Frontiers, Год журнала: 2023, Номер 7(22), С. 5561 - 5660

Опубликована: Янв. 1, 2023

This review provides an overview of the progress in development AIE-based organic small molecule probes for detecting biologically important molecules, drug volatile compounds, and explosives over past five years.

Язык: Английский

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