Hypochlorite responsive ratiometric fluorescent switch and logic gates based on lanthanide functionalized polymer nanosphere

Zhou, Zhan; Wu, Haixia; Li, Feifei; Ma, Lu‐Fang; Qiao, Xiaoguang

doi:10.1016/j.dyepig.2019.108033

Cited by 29 publications

(4 citation statements)

References 47 publications

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“…The introduction and restriction of organic dye molecules into suitable-sized channels in frameworks provide great feasibility for specific potential applications . Rhodamine dyes have been widely applied in the field of optics because of their high quantum yield and stability.…”

Section: Results and Discussionmentioning

confidence: 99%

Dye-Encapsulated Lanthanide-Based Metal–Organic Frameworks as a Dual-Emission Sensitization Platform for Alachlor Sensing

Gao

Yang

et al. 2022

Inorg. Chem.

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As an important factor affecting global agricultural output, pesticides have a significant impact on the ecosystem. It is an urgent task to accurately and conveniently detect pesticide residues after their application. Herein, a fluorescent dye@MOF platform was designed via the encapsulation of rhodamine B (RhB) into the MOF structure (named RhB@HNU-48), which can significantly enhance the sensing sensitivity of alachlor with an ultralow detection limit of 0.59 ppb. The improved sensitivity of RhB@HNU-48 to pesticides was attributed to the host–guest interactions that affect the excitation and emission spectra of the composites. Based on the sensing capability of RhB@HNU-48, a logic gate was built to evaluate the safety level of alachlor residues in rivers and soil. The preparation of photofunctionalized MOF composites through modulation of host–guest interactions offers a promising strategy for the construction of desired sensors for agricultural residues.

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Section: Results and Discussionmentioning

confidence: 99%

Dye-Encapsulated Lanthanide-Based Metal–Organic Frameworks as a Dual-Emission Sensitization Platform for Alachlor Sensing

Gao

Yang

et al. 2022

Inorg. Chem.

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“…There are several reports focused on systems sensitive to the concentration of H + . In a recent work Z. Zhou et al 66 reported the Eu (nta) 3 L@polystyrene and the H + and ClO À ions for logic inputs (L stands for ligand 4 0 -(4 0 -vinyl-[1,1 0 -biphenyl]-4-yl)-2,2 0 :6 0 ,2 00 -terpyridine). The intensity ratio between two emission bands (ascribed to the ligand/ 5 D 0 -7 F 2 transition of Eu 3+ ) was used as the logic output.…”

Section: Ln 3+ -Based Molecular Gates Actuated By Chemical Inputsmentioning

confidence: 99%

Lanthanide-based logic: a venture for the future of molecular computing

et al. 2023

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“…Therefore, there is still an urgent need to find a rapid, simple, and sensitive method to detect amino acids. Molecular recognition-based metal–organic framework (MOF) fluorescence sensors have been widely used to detect the metal ions, anions, and organic bioactive molecules because of their high sensitivity and selectivity, − and the detection of amino acids has also received widespread attention. − Furthermore, MOFs are widely utilized because of their diverse structures and uniform porosity. Over the past two decades, their use has grown rapidly in chemistry and materials science. − …”

Section: Introductionmentioning

confidence: 99%

Nanochannel-Based Heterometallic {Co^IITb^III}-Organic Framework for Fluorescence Recognition of Tryptophan and Catalytic Cycloaddition of Epoxides with CO₂

Zhang

Chen

Wang

et al. 2022

ACS Appl. Nano Mater.

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To pave the way for the salient application of metal–organic frameworks (MOFs) as realistic sensors, it is critical to screen or design the customized functional structure with specified prominent synergistic effects provided by its constituents, voids, specific surfaces, functional sites, etc. This prompts us to study the sensing performance of a honeycomb nanochannel of heterometallic MOFs previously invented. This structure has excellent physical and chemical properties of high specific surface area, good chemical stability, and highly open coexistence of Lewis acid–base sites. In this work, the highly robust sky-blue [CoTb(CO2)6(OH2)]-based heterometallic framework of {[(CH3)2NH2][CoTb(TDP)(H2O)]·3H2O·4DMF} n (NUC-31; H6TDP = 2,4,6-tri(2′,4′-dicarboxyphenyl)pyridine) was synthesized. The results of the fluorescence recognition experiment show that, compared with other amino acids, NUC-31 has an ultrastrong fluorescence quenching for tryptophan with a detection limit as low as 0.11 mM, which means that NUC-31 can be used as a potential fluorescence probe for the targeted detection of tryptophan of ecosystems. In addition, the catalytic experiment results indicated that NUC-31 has high activity for catalyzing the cycloaddition reaction of epoxides with CO2 under 75 °C and 1 atm. It is precisely due to NUC-31 having extremely unsaturated tetracoordinated Co(II) and hepta-coordinated Tb(III) metal ions as well as a high pore volume (65.1%), which makes the catalytic reaction conditions relatively mild. Therefore, this work certificated that nanoporous MOFs assembled from a multifunctional ligand with the highly open coexistent Lewis acid–base sites had a potential application not only in monitoring tryptophan in clinical scenarios but also as an effective heterogeneous catalyst.

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Hypochlorite responsive ratiometric fluorescent switch and logic gates based on lanthanide functionalized polymer nanosphere

Cited by 29 publications

References 47 publications

Dye-Encapsulated Lanthanide-Based Metal–Organic Frameworks as a Dual-Emission Sensitization Platform for Alachlor Sensing

Dye-Encapsulated Lanthanide-Based Metal–Organic Frameworks as a Dual-Emission Sensitization Platform for Alachlor Sensing

Lanthanide-based logic: a venture for the future of molecular computing

Nanochannel-Based Heterometallic {Co^IITb^III}-Organic Framework for Fluorescence Recognition of Tryptophan and Catalytic Cycloaddition of Epoxides with CO₂

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Hypochlorite responsive ratiometric fluorescent switch and logic gates based on lanthanide functionalized polymer nanosphere

Cited by 29 publications

References 47 publications

Dye-Encapsulated Lanthanide-Based Metal–Organic Frameworks as a Dual-Emission Sensitization Platform for Alachlor Sensing

Dye-Encapsulated Lanthanide-Based Metal–Organic Frameworks as a Dual-Emission Sensitization Platform for Alachlor Sensing

Lanthanide-based logic: a venture for the future of molecular computing

Nanochannel-Based Heterometallic {CoIITbIII}-Organic Framework for Fluorescence Recognition of Tryptophan and Catalytic Cycloaddition of Epoxides with CO2

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Nanochannel-Based Heterometallic {Co^IITb^III}-Organic Framework for Fluorescence Recognition of Tryptophan and Catalytic Cycloaddition of Epoxides with CO₂