Energy transfer engineering in lanthanide metal-organic frameworks for ratiometric fluorescence sensing

TrAC Trends in Analytical Chemistry, Год журнала: 2025, Номер unknown, С. 118133 - 118133

Опубликована: Янв. 1, 2025

Язык: Английский

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Regulating the Energy Level of a Ratiometric Luminescent Europium(III) Metal–Organic Framework Sensor with Smartphone Assistance for Real-Time and Visual Detection of Carcinoid Biomarker

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Фев. 18, 2025

Regulating the energy level of a lanthanide (III) metal–organic framework (Ln-MOF) via an "antenna effect" is effective strategy for achieving ratiometric luminescent dynamics carcinoid biomarker sensing application. Herein, we present europium-based MOF material {[Eu(BPDC)(μ3–OH)(H2O)2]·2.5H2O}n (Eu-MOF, H2BPDC = 2,2′-bipyridine-4,4′-dicarboxylic acid and DMF N,N-dimethylformamide), incorporating tetranuclear cubane-like [Eu4(μ3–OH)4(COO)4]4– cluster cores, 5-hydroxyindole-3-acetic (5-HIAA) detection through influence Eu3+ ions sensitized by ligands as well 5-HIAA. Luminescence titration experiments indicate Eu-MOF can demonstrate simultaneous luminescence emission signals cations 5-HIAA, resulting in on–off 5-HIAA response to concentrations demonstrating superior stability excellent performance such low limit (LOD 37.16 nM), high selectivity (Ksv 2.39 × 104 M–1), fast (≤1 min), attractive recyclability (≥five times). Derived from contribution competitive absorption coordination interactions between exhibits visually observable color change red purple naked eye illuminated ultraviolet light, confirmed fabrication portable hydrogels. More importantly, smartphone assistance based on RGB chromaticity analysis has been developed intelligent Eu-MOF@PVA Eu-MOF@PU films have proposed real-time visual thereby enhancing practical applicability quantitative trace

Язык: Английский

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Regulating Ratiometric Fluorescence of Nanoporous Dual-Centered Lanthanide Metal–Organic Frameworks for Quantitative and Visual Detection of Anthrax Biomarkers

ACS Applied Nano Materials, Год журнала: 2024, Номер 7(22), С. 25805 - 25814

Опубликована: Окт. 31, 2024

Developing a sensitive, rapid, and accurate method for the quantitative visual detection of anthrax biomarker dipicolinic acid (DPA) is great significance to human health public safety. Due presence "antenna effect", sensitization Eu3+ ions Tb3+ can be facilely achieved by organic ligands with different degrees exhibits excellent luminescence behavior ions, enabling dual-centered lanthanide metal–organic framework (Ln-MOF) promising ratiometric fluorescence sensor trace DPA determination. Herein, we present series nanoporous frameworks, denoted as {EuxTb1–x(BPDC)(μ3-OH)(H2O)·H2O·DMF}n (EuxTb1–x-BPDC) assembled 2,2′-bipyridine-4,4′-dicarboxylic (H2BPDC), sensors DPA. Among these, Eu0.5Tb0.5-BPDC stands out optimal material, exhibiting superior performance quantitative, visual, detection. Moreover, demonstrates stability in aqueous solution capability remarkable sensitivity (limit (LOD) = 0.608 μM), selectivity (Ksv 6.46 × 106 M–1), anti-interference, impressive reusability. contribution blocked energy transfer between mixed-lanthanide competitive absorption DPA, color change observation from red greenish-yellow under illumination ultraviolet light. Most importantly, colorimetric test strips portable hydrogels, facilitating practical application

Язык: Английский

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Colorimetric detection of thiocyanate via inhibiting the peroxidase-like activity of Fe-modified porphyrinic metal-organic framework

Journal of Solid State Chemistry, Год журнала: 2025, Номер unknown, С. 125345 - 125345

Опубликована: Март 1, 2025

Язык: Английский

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Antenna effect-modulated luminescent lanthanide complexes for biological sensing

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Год журнала: 2025, Номер unknown, С. 126239 - 126239

Опубликована: Апрель 1, 2025

Язык: Английский

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Ratiometric Fluorescence Sensors Utilizing Lanthanide Coordination Polymers for Detecting Foodborne Hazards: Mechanisms, Design Strategies, Applications, and Future Perspectives

Trends in Food Science & Technology, Год журнала: 2025, Номер unknown, С. 105034 - 105034

Опубликована: Апрель 1, 2025

Язык: Английский

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In Situ Coordination-Catalyzed o-Vanillin Underwent a One-Pot Tandem Reaction to Construct Complex Chiral Tetrameric Isomer-Based Hexanuclear Clusters

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Апрель 23, 2025

In this work, Dy(NO3)3·6H2O and o-vanillin reacted under "one-pot" conditions, achieving for the first time four efficient condensations of obtaining a pair chiral hexanuclear clusters R/S-Dy6. The Dy(III) ions in structure R/S-Dy6 are arranged planar quadrilateral with ion derived from each upper lower ends, forming shape similar to "chair". complex ligands H4LR1 H4LS1 were obtained simple through multistep tandem reaction. Their formation process involved series reaction steps, including free radical coupling form pinacol an situ o-vanillin. Magnetic studies show that have magnetic anisotropy and/or low excited states. addition, has outstanding ability produce reactive oxygen species low-power light irradiation shows excellent photodynamic sterilization. inhibition zones against Escherichia coli about 2.09 2.99 cm, Staphylococcus aureus 2.51 2.93 respectively. This work not only provides vivid example synthesis organic products but also promotes progress lanthanide clusters' crystal engineering.

Язык: Английский

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Rational construction of luminescent Eu-doped Y-MOF for ratiometric temperature sensing

RSC Advances, Год журнала: 2024, Номер 14(39), С. 28340 - 28344

Опубликована: Янв. 1, 2024

A dual-emitter luminescent Eu-doped Y-MOF was successfully constructed by using a cation exchange strategy. As self-calibrated thermometer, this MOF exhibits excellent fluorescence performance for wide-range temperature sensing.

Язык: Английский

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Fabrication of two 3D Ln-MOFs as highly sensitive luminescent sensors for Fe3+ and Cr3+ ions

Journal of Solid State Chemistry, Год журнала: 2024, Номер 339, С. 124988 - 124988

Опубликована: Авг. 30, 2024

Язык: Английский

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Homochiral Zn(Ⅱ) Coordination Polymers with Helixes Constructed from Semirigid Lactate Deriatives for Circular Polarization Luminescence and Fluorescent Prober

Journal of Solid State Chemistry, Год журнала: 2024, Номер unknown, С. 125024 - 125024

Опубликована: Сен. 1, 2024

Язык: Английский

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