Metal–organic framework (MOF)-based fluorescence “turn-on” sensors

Materials Chemistry Frontiers, Journal Year: 2022, Volume and Issue: 7(3), P. 405 - 441

Published: Dec. 9, 2022

The various potential sensing application by luminescent MOFs.

Language: Английский

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Highly pH-Responsive Sensor Based on a Eu^III Metal–Organic Framework with Efficient Recognition of Arginine and Lysine in Living Cells

Analytical Chemistry, Journal Year: 2023, Volume and Issue: 95(11), P. 4992 - 4999

Published: March 6, 2023

A lanthanide-based three-dimensional metal–organic framework with excellent water, acid/base, and solvent stability, namely {[(CH3)2NH2]0.7[Eu2(BTDBA)1.5(lac)0.7(H2O)2]·2H2O·2DMF·2CH3CN}n (JXUST-29, H4BTDBA = 4′,4‴-(benzo[c][1,2,5]thiadiazole-4,7-diyl)bis([1,1′-biphenyl]-3,5-dicarboxylic acid), Hlac lactic has been synthesized characterized. Since the N atoms of thiadiazole group will not coordinate lanthanide ions, JXUST-29 a free basic N-site accessible to small H+ which allows it be used as promising pH fluorescence sensor. Interestingly, luminescence signal was significantly enhanced, an approximately 54-fold enhancement in emission intensity when value increased from 2 5, is typical behavior probes. In addition, can also sensor detect l-arginine (Arg) l-lysine (Lys) aqueous solution through blue-shift effect. The detection limits were 0.023 0.077 μM, respectively. JXUST-29-based devices designed developed facilitate detection. Importantly, capable detecting sensing Arg Lys living cells.

Language: Английский

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A unique AIE multi-responsive half-salamo-like fluorescence sensor for temperature, pH and Cu2+/S2- ions in aqueous media

Microchemical Journal, Journal Year: 2023, Volume and Issue: 190, P. 108736 - 108736

Published: April 10, 2023

Language: Английский

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Four Novel Cobalt(II) Coordination Polymers Based on Anthracene-Derived Dicarboxylic Acid as Multi-functional Fluorescent Sensors toward Different Inorganic Ions

Crystal Growth & Design, Journal Year: 2023, Volume and Issue: 23(4), P. 2395 - 2405

Published: March 13, 2023

A series of Co(II)–H2L coordination polymers were prepared with different auxiliary ligands, namely {[Co(L)(bibp)]}n 1, {[Co(L) (bpy)(H2O)]2·2H2O}n 2, {[Co(L)(bipd)]}n 3, and {[Co(L)(bbibp)]·H2O}n 4 (H2L = 5-{(anthracene-9-ylmethyl)amino}isophthalic acid, bibp 4,4′-bis(imidazolyl)biphenyl, bpy 2,2′-bipyridine, bipd 3,5-bis(1-imidazoly)pyridine, bbibp 4,4′-bis(benzoimidazo-1-yl)biphenyl), by a similar solvothermal method. X-ray diffraction analyses revealed that exhibit two-dimensional (2D) structure, which further builds the three-dimensional (3D) supramolecular architecture via weakly interacting hydrogen bonds C–H···O, while 2 displayed one-dimensional (1D) double-chain extended from two 1D zigzag chains intermolecular bonding interactions. The sensing experiments 1 can serve as either individual- and/or multi-responsive sensors to selectively detect Cr3+, Al3+, Pb2+ ions through fluorescence turn-on effect, 3–4 exhibited turn-off behavior for Fe3+ ions. Moreover, 1–4 effectively recognize Cr2O72– CrO42– due their high selectivity sensitivity quenching in aqueous solutions, mechanism various has been discussed.

Language: Английский

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Fluorescence sensing and device fabrication with luminescent metal–organic frameworks

Dalton Transactions, Journal Year: 2023, Volume and Issue: 53(2), P. 394 - 409

Published: Nov. 13, 2023

Recent progress in luminescent metal–organic frameworks for detecting ions, volatile organic compounds, biomolecules and environmental toxins device fabrication has been reviewed.

Language: Английский

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Bimetallic-MOF Tunable Conductive Hydrogels to Unleash High Stretchability and Sensitivity for Highly Responsive Flexible Sensors and Artificial Skin Applications

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(12), P. 7288 - 7300

Published: June 6, 2024

Metal–organic frameworks (MOFs) are widely applied in various fields, including energy storage, drug delivery, wastewater treatment, and much more. However, their use hydrogels is limited due to low dispersion which causes agglomeration the hydrogel network many properties of sacrifices. Similarly, conductive have emerged as a promising material for skin-like sensors excellent biocompatibility mechanical flexibility. like MOFs, also face challenges such stretchability, toughness, susceptibility fatigue, resulting sensing range large response time-reduced durability sensors. In this study, highly stretchable, tough, antifatigue composite poly(dodecyl methacrylate-acrylamide-2-(acryloyloxy)ethyl trimethylammonium chloride) bimetallic metal–organic framework [p(DA-AM-AETAC)BM-MOF] was developed by integrating BM-MOFs into it. To achieve uniform within network, positively charged surfactant, ethyl hexadecyl dimethylammonium bromide, used. It facilitates formation hydrophobic interactions between matrix surface BM-MOFs. Furthermore, it can interact with surfactant polymer chains through physical interactions, significantly enhancing hydrogel. The BM-MOF-based exhibited impressive stretchability (1588%) toughness (537 kJ m–3), along exceptional properties. Moreover, demonstrated high conductivity 1.3 S/m tensile strain sensitivity ranging from 0.5 700% gauge factor 14.8 at response–recovery 195–145 ms. p(DA-AM-AETAC)BM-MOF displayed sensitive, reliable, repetitive detection wide human activities, wrist elbow rotation, finger bending, swallowing motion, speaking, well handwriting drawing. monitor pressure mimic skin. This highlights potential wearable strain, pressure, artificial skin flexible devices.

Language: Английский

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A water stable and highly fluorescent Zn(ii) based metal–organic framework for fast detection of Hg²⁺, Cr^VI, and antibiotics

Dalton Transactions, Journal Year: 2023, Volume and Issue: 52(22), P. 7611 - 7619

Published: Jan. 1, 2023

A water-stable two-fold interpenetrated LMOF ( 1 ) with 1D channel structure and uncoordinated −NH 2 group located onto the pore walls was obtained. exhibits a fluorescent turn-off sensing behavior for Hg 2+ , Cr O 7 − CrO 4 antibiotics in aqueous solution.

Language: Английский

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Dye@MOF composites (RhB@1): Highly sensitive dual emission sensor for the detection of pesticides, Fe3+ and ascorbate acid

Chinese Chemical Letters, Journal Year: 2023, Volume and Issue: 34(10), P. 108411 - 108411

Published: March 31, 2023

Language: Английский

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Cu(II)-Based Metal–Organic Framework Loaded with Silver Nanoparticles as a Catalyst for the A³-Coupling Reaction

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(3), P. 3210 - 3219

Published: Jan. 25, 2024

The embedding of metal nanoparticles (NPs) in metal–organic frameworks (MOFs) has attracted a wide range attention the field catalysis due to high agglomeration resistance NPs MOFs. In this work, Cu(II)-based MOF with formula {[Cu1.5(TPA)(BIBT)]·4DMF·6H2O]}n (1) (H3TPA = tris(4′-carboxybiphenyl)amine; BIBT 4,7-di(1H-imidazol-1-yl)benzo[c][1,2,5]thiadiazole; and DMF N,N-dimethylformamide) was synthesized under solvothermal condition. Structural analysis revealed that Cu-MOF 1 possessed 3-fold interpenetrated three-dimensional (3D) coordination large one-dimensional (1D) channels along a-axis. Due interaction between Ag S/N, could be encapsulated into pores generate composites, xAg/1 (x 0.3, 0.5, 0.8, x molar ratios AgNO3 synthesis), which further demonstrated by powder X-ray diffraction, Fourier transform infrared, scanning electron microscopy, transmission microscope, energy dispersive spectrometer, photoelectron spectroscopy, Brunauer–Emmett–Teller (BET) analysis. addition, 0.5Ag/1 exhibited outstanding catalytic activity for A3-coupling reaction aldehyde, alkyne, amine recyclability. This work presents viable strategy using loading as heterogeneous catalysts reaction.

Language: Английский

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Synthesis, structure and electrochemical properties of Co-MOF containing pyridine polycarboxylic acid

Journal of Solid State Chemistry, Journal Year: 2024, Volume and Issue: 333, P. 124648 - 124648

Published: March 4, 2024

Language: Английский

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