Advancements in magnetic nanomaterial-assisted sensitive detection of foodborne bacteria: Dual-recognition strategies, functionalities, and multiplexing applications

Food Chemistry, Год журнала: 2025, Номер 478, С. 143626 - 143626

Опубликована: Фев. 27, 2025

Язык: Английский

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Research Progress of Carbon Dots as Novel Corrosion Inhibitors

Journal of Molecular Structure, Год журнала: 2025, Номер unknown, С. 141894 - 141894

Опубликована: Фев. 1, 2025

Язык: Английский

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Optimized Sensitivity in Copper(II) Ion Detection: Sustainable Fabrication of Fluorescence Red-Shifted Graphene Quantum Dots via Electron-Withdrawing Modulation

Molecules, Год журнала: 2025, Номер 30(6), С. 1244 - 1244

Опубликована: Март 10, 2025

Graphene quantum dots (GQDs) represent a class of promising nanomaterials characterized by adjustable optical properties, making them well suited for applications in biosensing and chemical detection. However, challenges persist achieving scalable, cost-effective synthesis enhancing detection sensitivity. In this study, we have developed simple environmentally friendly method to prepare blue graphene dots, c-GQDs, using nitronaphthalene as precursor, yellow y-GQDs, doped acid. The yield is 29.75%, the average thickness 2.08 nm 3.95 nm, respectively. synthesized c-GQDs exhibit prominent cyan fluorescence at wavelength 490 under excitation 380 while y-GQDs show distinct 540 494 nm. introduction p-aminobenzoic acid (PABA) introduced marked red shift fluorescence, attributed electron-withdrawing effect carboxyl groups on PABA. This key finding significantly enhanced sensitivity GQDs detecting trace copper(II) ions (Cu2+), heavy metal contaminant posing serious environmental risks. was selectively quenched presence Cu2+, facilitating accurate sensitive even complex ion matrices. Mechanistic studies revealed that quenching driven strong static interactions, which inhibit non-radiative transitions. work not only introduces scalable producing high-performance but also highlights their potential effective fluorescent probes monitoring

Язык: Английский

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Are food-derived carbon dots really edible? A potential harm versus potential benefits analysis

Trends in Food Science & Technology, Год журнала: 2025, Номер unknown, С. 105031 - 105031

Опубликована: Апрель 1, 2025

Язык: Английский

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