Fluorescence sensor array based on pore-size sieving effect of Zr-MOFs for monitoring ATP hydrolysis and ATP-related physiological phosphates

Microchemical Journal, Journal Year: 2025, Volume and Issue: unknown, P. 113219 - 113219

Published: Feb. 1, 2025

Language: Английский

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The Construction of Carbazole-Based Metal–Organic Frameworks as Fluorescent Probes for Picric Acid Detection

Chemosensors, Journal Year: 2025, Volume and Issue: 13(3), P. 105 - 105

Published: March 13, 2025

Nitroaromatic-explosives (NEs) not only threaten global security but are also recognized as a highly toxic pollutant. Metal–organic framework Zn-Ms (Zn-M1, Zn-M2) were synthesized in this study via the coordination-driven self-assembly of Zn ions and carbazole-based ligand L containing an aldehyde group. They inherited excellent fluorescence performance could work fluorescent sensor for detecting picric acid (PA) at low concentrations. showed emission 450 nm exhibited higher quenching efficiency toward PA than other related NEs. The results suggest that response might be attributed to inner filter effect (IFE); Förster resonance energy transfer (FRET); possibly, photo-induced electron (PET). In addition, critical role group recognition site was corroborated using post-modification strategy.

Language: Английский

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Harvesting Bright Green Photoluminescence of Tb₂(BDC)₃(H₂O)₄ MOF via Pressure‐Modulated Ligand‐to‐Metal Energy Transfer

Chemistry - An Asian Journal, Journal Year: 2025, Volume and Issue: unknown

Published: April 9, 2025

Abstract Lanthanide metal‐organic frameworks (Ln‐MOFs) exhibit distinctive emission spectra and prolonged luminescent lifetimes, thereby offering a unique platform for the advancement of solid‐state photoluminescence (PL) materials. However, mismatch between energy levels metal ions organic ligands leads to weak PL emission. Herein, this study presents pressure‐treated strategy aimed at achieving efficient green in Tb 2 (BDC) 3 (H O) 4 MOF. Compared initial intensity, intensity is enhanced eightfold below 3.1 GPa. Intriguingly, sample amplified by 2.5‐fold compared state, monochromaticity maintained. Experiments calculations reveal that hydrogen bonds are retained ambient conditions after pressure treatment. They lock conjugated configuration formed planes carboxyl group benzene ring, facilitating intersystem crossing. The reduced distances drive ligand‐to‐metal transfer process. This finding provided significant insights into structure–property relationship , new boosting enhancement Ln‐MOFs.

Language: Английский

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Lanthanide metal-organic frameworks based on rigid-flexible dual ligands as ratiometric fluorescence sensor of tryptophan or as excellent magnetic refrigerant

Journal of Molecular Structure, Journal Year: 2025, Volume and Issue: unknown, P. 142433 - 142433

Published: April 1, 2025

Language: Английский

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