Eu(III)-Functionalized MOF-Based Dual-Emission Ratiometric Sensor Integrated with Logic Gate Operation for Efficient Detection of Hippuric Acid in Urine and Serum

Inorganic Chemistry, Journal Year: 2023, Volume and Issue: 62(6), P. 2715 - 2725

Published: Jan. 27, 2023

With the introduction of Eu3+ ions as secondary fluorescent signal reporter and sensing active sites, a dual-emission ratiometric sensor Eu3+@NiMOF (Eu3+ functional NiMOF) for hippuric acid (HA) detection in urine serum was fabricated via postsynthetic encapsulating strategy. Based on two emission signals at 441 nm (turn-on) 628 (turn-off), produced provided enhanced sensitivity, higher selectivity, 9.7 times lower limits (LOD) HA (2.38 μM, 0.42 μg·mL-1) than that pristine NiMOF. Considering high sensitivity visualization results, further exploration intelligent applications process carried out by constructing tandem combinational logic gate to improve practicability convenience with help smartphone. This work provides promising approach developing MOF-based sensors detect biomarkers.

Language: Английский

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Tb(III) functionalized MOF based self-calibrating sensor integrated with logic gate operation for efficient epinephrine detection in serum

Journal of Rare Earths, Journal Year: 2023, Volume and Issue: 42(5), P. 987 - 994

Published: April 19, 2023

Language: Английский

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Copper-Based Bio-MOF/GO with Lewis Basic Sites for CO₂ Fixation into Cyclic Carbonates and C–C Bond-Forming Reactions

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(27), P. 12667 - 12680

Published: June 25, 2024

Several measures, including crude oil recovery improvement and carbon dioxide (CO2) conversion into valuable chemicals, have been considered to decrease the greenhouse effect ensure a sustainable low-carbon future. The Knoevenagel condensation CO2 fixation introduced as two principal solutions these challenges. In present study for first time, bio-metal–organic frameworks (MOF)(Cu)/graphene oxide (GO) nanocomposites used catalytic agents reactions. view of attendance amine groups, biological MOFs with NH2 functional groups Lewis base sites protruding on channels' internal surface were used. bio-MOF(Cu)/20%GO performs efficaciously in fixation, leading more than 99.9% TON = 525 via solvent-free reaction under 1 bar atmosphere. It has shown that are highly due basic sites, i.e., NH2, pyrimidine, C═O groups. Besides, active exert synergistic effects render bio-MOF(Cu)/10%GO nanostructures efficient catalysts, significantly accelerating reactions aldehydes malononitrile substrates, thanks high TOF (1327 h–1) acceptable reusability. Bio-MOFs can be stabilized using GO oxygen-containing contribute substitutes, an expeditious speed facilitating substrate absorption.

Language: Английский

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Pendent carboxylic acid-fuelled high-performance uranium extraction in a hydrogen-bonded framework and prolifically improved water oxidation via post-metalation-actuated composite fabrication

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(6), P. 3501 - 3512

Published: Jan. 1, 2024

Employing a functionality scissoring approach, hydrogen-bonded MOF shows selective and regenerable uranium extraction alongside exceptionally improved electrochemical oxygen evolution via post-metalation.

Language: Английский

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l–aspartic acid chelan–Cu (II) complex coted on ZrFe2O4 MNPs catalyzed one–pot annulation and cooperative geminal-vinylogous anomeric–based oxidation reactions

Journal of Physics and Chemistry of Solids, Journal Year: 2023, Volume and Issue: 177, P. 111300 - 111300

Published: March 2, 2023

Language: Английский

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[ZrFe2O4@SiO2–N–(TMSP)–ASP–Pd(0)] Complex: Synthesis, characterizations, and its application as a nanomagnetic catalyst in cross-coupling and click reactions

Journal of Molecular Structure, Journal Year: 2023, Volume and Issue: 1292, P. 136115 - 136115

Published: June 29, 2023

Language: Английский

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A new 3D Cd(II) metal organic framework (MOF) as an efficient photocatalyst for nitrofurantoin antibiotic degradation

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1312, P. 138586 - 138586

Published: May 10, 2024

Language: Английский

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Robust {Cd₄}-Organic Framework for Efficiently Catalyzing CO₂ Cycloaddition and Knoevenagel Condensation

Crystal Growth & Design, Journal Year: 2023, Volume and Issue: 23(5), P. 3320 - 3329

Published: April 20, 2023

The high-value-added carbonates generated from CO2 have attracted the attention of more and researchers because which optimization metal–organic framework (MOF)-based catalysts has seen a considerable upsurge at present. scarcely reported cadmium(II)-based MOFs inspire us to explore CdOFs with excellent catalytic activity high reusability. Herein, unification unreported {Cd4(μ3-OH)2(CH3CO2–)} cluster 2,6-bis(2,4-dicarboxylphenyl)-4-(4-carboxylphenyl)pyridine (H5BDCP) led highly robust nanoporous crystalline material {(Me2NH2)5[Cd4(BDCP)2(μ3-OH)2(CH3CO2)(H2O)2]·3DMF·2H2O}n (NUC-67) 57.4% void volume. Structural analysis displays that inner surface channels in activated NUC-67a is functionalized by Lewis acid sites unsaturated Cd2+ ions base μ3-OH– groups, CH3CO2– anions, free pyridine, C═O groups. Under solvent-free conditions, exhibits performance on cycloaddition epoxides; for instance, conversion rate propylene oxide (PO) into carbonate (PC) 1 atm can reach 99% within 6 h 55 °C, resulting 660 turnover number 110 h–1 frequency. Moreover, Knoevenagel condensation reactions aldehydes malononitrile be efficiently catalyzed NUC-67a. Encouragingly, shows strong structural stability good reversible cyclicity above two organic metal leaching below 8 ppb. Hence, this work proves MOF-based should focus design selection ligands, plays decisive role regulation, such as cluster-based nodes, defect sites, unexpected insertion high-porosity channels.

Language: Английский

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Functionalized Metal–Organic Framework for Selective Fluorometric Detection of Sodium Dodecyl Sulfate and Vitamin B₁₂ Using MOF@Cotton Composites and Lewis Base-Catalyzed Condensation Reaction

Inorganic Chemistry, Journal Year: 2023, Volume and Issue: 62(22), P. 8605 - 8614

Published: May 23, 2023

A zirconium(IV)-based metal-organic framework (MOF) fluorophore containing the 2,5-diaminoterephthalic acid (H2BDC-(NH)2) linker was synthesized and characterized. The physicochemically stable, porous (SBET = 504 m2 g-1) MOF (1') exhibited selective sensitive fluorescence turn-on behavior toward sodium dodecyl sulfate (SDS) surfactant turn-off response vitamin B12. This is first ever reported MOF-based dual optical sensor of SDS Other competitive analytes did not interfere in detection both analytes. Along with lowest limit (LOD) values (LOD for 108 nM LOD B12 45.3 nM), 1' displayed short time (50 s) (5 detection. able to detect various real water samples bio-fluids (urine serum) pH media. MOF-coated cotton composite fabricated, which a visible color change under UV light even after treating it nanomolar concentration excellent reusability up five cycles sensing. Various experimental outcomes evidenced that electrostatic interaction between -NH2 groups -SO3- group possible reason For B12, energy transfer from probe resulted quenching. In addition, catalytic performance investigated condensation reaction benzaldehyde derivatives cyanoacetamide high yields ethanol at 70 °C. solid used three no decrease its activity selectivity. PXRD FESEM analysis before suggested retention crystallinity 1', thus indicating catalyst stability.

Language: Английский

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A 3D paddle-wheel type Cu(ii)-based MOF with pcu topology as an efficient photocatalyst for antibiotics photodegradation

New Journal of Chemistry, Journal Year: 2023, Volume and Issue: 47(23), P. 11134 - 11142

Published: Jan. 1, 2023

A 3D paddle-wheel type Cu( ii )-based MOF with pcu topology synthesized and used as an efficient photocatalyst for antibiotics photodegradation.

Language: Английский

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