A Self‐Calibrating Sensing Platform Based on Amine‐Responsive Excitation Wavelength‐Dependent Fluorescent Polymers for Real‐Time and Visual Detection of Food Freshness

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 5, 2024

Abstract Accurate assessment of food freshness is critical to maintaining human health. However, the complex environment usually leads false‐positive measurements result. Therefore, development sensing platforms with self‐calibration for accurate detection in environments essential. Here, using green fluorescence‐emitting FITC‐ene and red DBA‐ene‐Eu 3+ as fluorescent units, polymeric materials P1‐P4 excitation wavelength‐dependent (254 365 nm, matched standard UV lamp) emission are prepared. responded rapidly biogenic amines (BAs). Among them, P3 exhibits widest linear range, most noticeable fluorescence color change (from orange‐red yellow‐green) under 254 nm enhanced excitation. The changes P3‐prepared labels at different wavelengths can be utilized evaluate food's freshness. Furthermore, by a smartphone read Red/Green/Blue values labels, total volatile basic nitrogen (TVBN) output quantitatively freshness, TVBN mutual calibration improve accuracy estimation results. This self‐calibrating platform fast nondestructive, which provides an effective method evaluation

Language: Английский

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A Ratio Luminescent Europium Organometallic Gel for In Vitro Detection of Hepatocellular Carcinoma Marker and Cellular Imaging

Talanta, Journal Year: 2025, Volume and Issue: 288, P. 127708 - 127708

Published: Feb. 7, 2025

Language: Английский

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Dynamically photoregulated multicolor materials for accurate color-difference-based information encryption

Journal of Photochemistry and Photobiology A Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 116372 - 116372

Published: March 1, 2025

Language: Английский

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New Transparent Rare‐Earth‐Based Hybrid Glasses: Synthesis, Luminescence, and X‐Ray Imaging Application

Aggregate, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

ABSTRACT Metal–organic hybrid glasses have recently emerged as the fourth member in glass family due to its versatile hosting ability various functional ions. However, no luminescent ions been successfully introduced into date. Here, we reported a benign desolvation method, whereby rare‐earth‐based (RE(NO 3 ) (C 5 H 2 N 4 glasses) were rapidly formed within 1 h at low temperature down 140°C. Such facile synthesis was applicable full rare‐earth family, including Y, Sc, and lanthanide series. The exhibited not only high transparency of over 88% but also quantum yield up 70%, which demonstrated spatial resolution X‐ray imaging screen. Hydrogen bond played key role maintaining structural integrity organic‐metal framework, turn promoted radiative recombination excited states both singlet triplet organic moiety (4,5‐dicyanoiazole, or DCI). An efficient energy transfer from DCI ions, known antenna effect, probed by steady‐state time‐resolved spectroscopy. Apart glasses, incorporation inert such La, Lu generated transparent enhanced room‐temperature phosphorescence. This work improved toolbox metal–organic provided an ideal matrix for energy‐transfer investigation between linker

Language: Английский

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Frontier in Advanced Luminescent Biomass Nanocomposites for Surface Anticounterfeiting

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

Published: March 18, 2025

Biomass-based luminescent nanocomposites have garnered significant attention due to their renewable, biocompatible, and environmentally sustainable characteristics for ensuring information encryption security. Nanomaterials are central this development, as high surface area, tunable optical properties, nanoscale structural advantages enable enhanced efficiency, stability, adaptability in diverse conditions. This review delves into the principles of luminescence, focusing on inherent bioluminescent properties natural materials, utilization biomass precursors carbon dots (CDs) aggregation-induced emission (AIE)-enhanced substances, functional optimization materials. The role cellulose nanocrystals (CNC), lignin, chitosan key biomass-derived nanomaterials will be highlighted, alongside interfacial engineering strategies that further improve material performance. Recent advancements synthesis integration anticounterfeiting systems discussed detail. Furthermore, advanced artificial intelligence (AI) technologies is explored, emphasizing potential revolutionize anticounterfeiting. Current challenges, including scalability, waste minimization, performance optimization, critically examined. Finally, outlines future research directions, application AI-driven methodologies exploration unconventional accelerate development high-performance, eco-friendly solutions.

Language: Английский

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Advanced anticounterfeiting polymer inks for high-level encryption and authentication technologies

Progress in Materials Science, Journal Year: 2025, Volume and Issue: unknown, P. 101487 - 101487

Published: April 1, 2025

Language: Английский

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Carbon dots-engineered gold nanoclusters in silica enabled aqueous-phase fluorescence-phosphorescence dual-emission towards advanced luminescent anti-counterfeiting

Nano Research, Journal Year: 2024, Volume and Issue: 18(2), P. 94907172 - 94907172

Published: Dec. 16, 2024

Language: Английский

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An acid-chromic luminescent lanthanide metallogel for time-dependent information encryption and anti-counterfeiting

Dalton Transactions, Journal Year: 2024, Volume and Issue: 53(20), P. 8626 - 8632

Published: Jan. 1, 2024

Building of an acid-chromic luminescent lanthanide metallogel for time-dependent information encryption and anti-counterfeiting.

Language: Английский

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