Two Chemorobust Cobalt(II) Organic Frameworks as High Sensitivity and Selectivity Sensors for Efficient Detection of 3-Nitrotyrosine Biomarker in Serum

Crystal Growth & Design, Journal Year: 2023, Volume and Issue: 23(11), P. 7716 - 7724

Published: Oct. 4, 2023

Rapid detection of the 3-nitrotyrosine (3-NT) biomarker in serum is great significance clinical diagnosis and daily disease monitoring. In this work, two chemorobust 3D metal–organic frameworks (MOFs) [Co(DBrTPA)(NMP)]n (CoMOF-1) [Co5(DBrTPA)4(DMF)6(HCOO)2]n (CoMOF-2) were fabricated from a halogen-modified ligand 2,5-dibromoterephthalic (H2DBrTPA) cobalt(II) clusters under solvothermal conditions. The introduction halogens can improve stability overall framework different media pH environments, which also endow CoMOFs with potential as luminescent sensors high sensitivity selectivity, fast response, good anti-interference, well recyclable performance detecting 3-NT PBS buffer solution through quenching effects, Ksv values being 9.19 × 104 M–1 for CoMOF-1 1.05 105 CoMOF-2 LODs low 23.6 ng·mL–1 20.1 CoMOF-2. Furthermore, developed employed to quantify real samples, satisfactory results. addition, possible sensing mechanisms toward discussed photoinduced electron transfer spectral overlaps. This work demonstrated excellent MOF-based provided an outlook design help artificial intelligence machine learning.

Language: Английский

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Eu(III) functionalized ZnMOF based efficient dual-emission sensor integrated with self-calibrating logic gate for intelligent detection of epinephrine

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Journal Year: 2024, Volume and Issue: 315, P. 124254 - 124254

Published: April 4, 2024

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

Published: Feb. 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

Language: Английский

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AIE Ligand-Based Luminescent Ln-MOFs for Rapid and Selective Sensing of Tetracycline

Inorganic Chemistry, Journal Year: 2023, Volume and Issue: 62(45), P. 18533 - 18542

Published: Oct. 28, 2023

The design of highly stable and dual-emission lanthanide metal-organic frameworks (Ln-MOFs) is promising for practical chemical sensor applications. Rational synthesis photoresponsive organic ligands provide a feasible approach to achieving fluorescent Ln-MOFs. In this study, tetraphenylpyrazine-based AIE ligand, H4L, was synthesized combined with ions (including Sm3+, Eu3+, Gd3+, Tb3+) fabricate series Ln-MOFs named Ln-L. single-crystal analysis revealed that all Ln-L belonged the tetragonal space group P4212 featured 2-fold interpenetrated 3D structure. Leveraging rational design, Eu-L exhibited sensitive response tetracycline, making it fluorescence tetracycline detection. experiments demonstrated could rapidly quantitatively detect its analogs within 30 s. lowest detection limits oxytetracycline, chlortetracycline were 0.43, 0.92, 0.81 μM, respectively. Additionally, probe displayed excellent reusability exceptional selectivity. A plausible sensing mechanism proposed, supported by both experimental theoretical analyses. Furthermore, study discovered on-site real-time determination TCs in aqueous solutions be achieved using luminescence test papers composite films derived from Eu-L.

Language: Английский

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Dual-Emitting Mixed-Lanthanide Metal–Organic Framework for Ratiometric and Quantitative Visual Detection of 2,6-Pyridine Dicarboxylic Acid

Inorganic Chemistry, Journal Year: 2023, Volume and Issue: 62(35), P. 14439 - 14447

Published: Aug. 18, 2023

The detection of the major biomarker Bacillus anthracis, 2,6-dipicolinic acid (DPA), has attracted great interest in recent years. In this work, mixed-lanthanide metal–organic frameworks (M'LnMOFs), TbxEu1–x-cppa (cppa = 5-(5-carboxypyridin-3-yl)isophthalic acid), with different Tb/Eu ratios, were solvothermally synthesized. results reveal that ratiometric fluorescent probe [Tb0.533Eu0.467-(Hcppa)1.5(H2O)(DMF)]·3H2O is water and acid–base stable exhibits excellent sensitivity (LOD 2.286 μM), high selectivity, fast response (<2 min) for DPA. Due to blocked energy transfer from Tb3+ Eu3+ inner filter effect upon addition DPA, shows a distinct color change orange-red green. Furthermore, visual DPA was realized by identifying RGB values MOF-based agarose hydrogel films via smartphone, highlighting practical application under aqueous solution conditions.

Language: Английский

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Ultrasensitive Detection of Vibrio parahaemolyticus Based on Boric Acid-Functionalized Eu (III)-Based Metal–Organic Framework

Analytica Chimica Acta, Journal Year: 2025, Volume and Issue: 1344, P. 343682 - 343682

Published: Jan. 16, 2025

Language: Английский

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A multichannel fluorescent sensor for solid and vapor phase detection of 4-nitroaniline and salicylaldehyde with latent fingerprint and an invisible ink analysis: Extensive experimental and DFT studies

Journal of Molecular Liquids, Journal Year: 2025, Volume and Issue: unknown, P. 127399 - 127399

Published: March 1, 2025

Language: Английский

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Stable Europium(III) Metal–Organic Framework Fluorescence Probe for Intelligent Visualization Detection of Gossypol and Nitrofuran Antibiotics in Real Samples

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(32), P. 15134 - 15143

Published: July 29, 2024

Gossypol (Gsp) and antibiotics present in water bodies become organic pollutants that are harmful to human health the ecological environment. Accurate effective detection of these has far-reaching significance many fields. A new three-dimensional metal-organic framework (MOF), {[Eu

Language: 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, Journal Year: 2024, Volume and Issue: 7(22), P. 25805 - 25814

Published: Oct. 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

Language: Английский

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Two Stable Bifunctional Zinc Metal–Organic Frameworks with Luminescence Detection of Antibiotics and Proton Conduction

Inorganic Chemistry, Journal Year: 2023, Volume and Issue: 62(49), P. 20314 - 20324

Published: Nov. 22, 2023

Functionalized crystalline solids based on metal-organic frameworks (MOFs) enable efficient luminescence detection and high proton conductivity, making them crucial in the realms of environmental monitoring clean energy. Here, two structurally functionally distinct zinc-based MOFs, [Zn(TTDPa)(bodca)]·H2O (1) [Zn(TTDPb)(bodca)]·H2O (2), were successfully designed synthesized using 3,6-di(pyridin-4-yl)thieno[3,2-b]thiophene (TTDPa) 2,5-di(pyridin-4-yl)thieno[3,2-b]thiophene (TTDPb) as ligands, presence bicyclo[2.2.2]octane-1,4-dicarboxylic acid (H2bodca). Both 1 2 display a three-dimensional (3D) structure with 5-fold interpenetration, notably, forms larger one-dimensional pore measuring 17.16 × 10.81 Å2 size. Fluorescence experiments demonstrate that can function luminescent sensors for nitrofurantoin (NFT) nitrofurazone (NFZ) low limits, remarkable selectivity, good recyclability. A comprehensive analysis was conducted to investigate differing sensing effects compounds explore potential mechanisms. Additionally, at 328 K 98% relative humidity, exhibit conductivity values 2.13 10-3 4.91 S cm-1, respectively, suitable proton-conducting materials. Hence, integration monophasic 3D Zn-MOFs holds significant application intelligent multitasking devices.

Language: Английский

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