Recent advances in molecular logic gate chemosensors based on luminescent metal organic frameworks

Li, Bei; Zhao, Dongsheng; Wang, Feng; Zhang, Xiaoxian; Li, Wenqian; Fan, Liming

doi:10.1039/d1dt02841c

Cited by 66 publications

(30 citation statements)

References 97 publications

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“…Since the Cd II ion is difficult to reduce or oxidize because of its d 10 configuration, the emissions cannot be assigned to either metal-to-ligand charge transfer or ligand-tometal charge transfer. Hence, the emissive behaviour of (I) can be attributed to ligand-centred electronic transitions, which is consistent with previously reported Cd II CPs in the literature (Li et al, 2021;Xue et al, 2021).…”

Section: Resultssupporting

confidence: 92%

A new two-dimensional cadmium(II) coordination polymer based on the asymmetric dicarboxylic acid homophthalic acid: synthesis, structure and properties

Shen

2022

Acta Crystallogr C

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A new coordination polymer poly[[μ2-4,4′-bis(2-methylimidazol-1-yl)biphenyl-κ2 N 3:N 3′]bis[μ3-2-(2-carboxylatophenyl)acetato-κ5 O,O′:O′,O′′:O′′]dicadmium(II)], [Cd(C9H6O4)(C20H18N4)0.5] n or [Cd(HMPH)(4,4′-BMIBP)0.5] n [H2HMPH is homophthalic acid and 4,4′-BMIBP is 4,4′-bis(2-methylimidazol-1-yl)biphenyl], (I), was synthesized by the solvothermal method and was structurally characterized by means of single-crystal X-ray diffraction, IR spectroscopy and elemental analysis. Coordination polymer (I) exhibits a two-dimensional layer based on one-dimensional [Cd(HMPH)] n chains. Remarkably, photocatalytic degradation experiments on methylene blue (MB) indicated that (I) exhibits an obvious degradation effect. Moreover, an investigation of the luminescence properties of (I) revealed that it could be considered as a potential highly selective luminescence sensor for nitrofurantoin (NFT).

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Section: Resultssupporting

confidence: 92%

A new two-dimensional cadmium(II) coordination polymer based on the asymmetric dicarboxylic acid homophthalic acid: synthesis, structure and properties

Shen

2022

Acta Crystallogr C

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“…In recent times, a special family of porous coordination polymers, called "metalorganic frameworks (MOFs)" has been developed [13][14][15]. MOFs can be synthesized using various non-noble metals and different ligands to create well-defined porous structures with versatile physical/chemical properties [13], making MOFs advantageous catalysts for a variety of reactions [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Single-Step Synthesized Functionalized Copper Carboxylate Framework Meshes as Hierarchical Catalysts for Enhanced Reduction of Nitrogen-Containing Phenolic Contaminants

et al. 2022

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Nitrogen-containing phenolic contaminants (NCPCs) represent typical pollutants of industrial wastewaters. As catalytic reduction of NCPCs is a useful technique and Cu is an efficient metal catalyst, Cu-carboxylate frameworks (CuCF) are favorable materials. However, they are in powder form, making them difficult to use; thus, in this study, CuCF was grown on macroscale supports. Herein, we present a facile approach to develop such a CuCF composite by directly using a Cu mesh to grow CuCF on the mesh through a single-step electrochemical synthesis method, forming CuCF mesh (CFM). CFM could be further modified to afford CuCF mesh with amines (NH2) (CFNM), and CuCF mesh with carboxylates (COOH) (CFCM). These CuCF meshes are compared to investigate how their physical and chemical characteristics influenced their catalytic behaviors for reduction/hydrogenation of NPCPs, including nitrophenols (NPs) and dyes. Their nanostructures and surface properties influence their behaviors in catalytic reactions. In particular, CFCM appears to be the most efficient mesh for catalyzing 4-NP, with a much higher rate constant. CFCM also shows a significantly lower Ea (28.1 kJ/mol). CFCM is employed for many consecutive cycles, as well as convenient filtration-type 4-NP reduction. These CuCF meshes can also be employed for decolorization of methylene blue and methyl orange dyes via catalytic hydrogenation.

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“…In recent years, the field has evolved from a single physical or chemical input to a combinatorial and sequential operation, showing great potential and broad promise. Molecular logic gates are gradually replacing traditional semiconductor electronic computers with their significant advantages and are used for heavy metal ion detection, environmental monitoring, food safety detection, pre-disease diagnosis, and biosensor research [ 36 , 37 , 38 ]. MOFs-based fluorescent probes are highly selective and sensitive, allowing the construction of chemical sensors for sensing various analytes by host–guest interactions.…”

Section: Introductionmentioning

confidence: 99%

A Novel Turn-On Fluorescence Probe Based on Cu(II) Functionalized Metal–Organic Frameworks for Visual Detection of Uric Acid

et al. 2022

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As an important biomarker in urine, the level of uric acid is of importance for human health. In this work, a Cu(II) functionalized metal–organic framework (Cu2+@Tb-MOFs) is designed and developed as a novel fluorescence probe for wide-range uric acid detection in human urine. The study shows that this fluorescence platform demonstrated excellent pH-independent stability, high water tolerance, and good thermal stability. Based on the strong interaction between metal ions and uric acid, the designed Cu2+@Tb-MOFs can be employed as efficient turn-on fluorescent probes for the detection of uric acid with wide detection range (0~104 µM) and high sensitivity (LOD = 0.65 µM). This probe also demonstrates an anti-interference property, as other species coexisted, and the possibility for recycling. The sensing mechanisms are further discussed at length. More importantly, we experimentally constructed a molecular logic gate operation based on this fluorescence probe for intelligent detection of uric acid. These results suggest the Cu(II) functionalized metal–organic framework can act as a prominent candidate for personalized monitoring of the concentration of uric acid in the human urine system.

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Recent advances in molecular logic gate chemosensors based on luminescent metal organic frameworks

Abstract: Luminescent metal-organic frameworks (LMOFs) as chemosensors, can sense various analytes, such as heavy metal ions, antibiotics, pesticides, and small biological molecules. Based on the fluorescence characteristics of LMOFs, a variety...

Cited by 66 publications

References 97 publications

A new two-dimensional cadmium(II) coordination polymer based on the asymmetric dicarboxylic acid homophthalic acid: synthesis, structure and properties

A new two-dimensional cadmium(II) coordination polymer based on the asymmetric dicarboxylic acid homophthalic acid: synthesis, structure and properties

Single-Step Synthesized Functionalized Copper Carboxylate Framework Meshes as Hierarchical Catalysts for Enhanced Reduction of Nitrogen-Containing Phenolic Contaminants

A Novel Turn-On Fluorescence Probe Based on Cu(II) Functionalized Metal–Organic Frameworks for Visual Detection of Uric Acid

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