A fluorophore anchored MOF for fast and sensitive sensing of Cu(<scp>ii</scp>) and 3-nitrotyrosine in a physiological medium

Mukherjee, Srijan; Sarkar, Kabita; Biswas, Shyam

doi:10.1039/d3dt00660c

Cited by 21 publications

(14 citation statements)

References 54 publications

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“…Looking into the detrimental effects of mercury and hydrazine in drinking water, many environmental scientists working in the field of sensing hazardous materials have put forward their contribution by several methods. The selective sensing of hazardous materials has been reported by enormous research groups with the help of ion-exchange chromatography, electrochemical, 11 spectrometry, 12 voltammetry, 13 and fluorescencebased methods 38 . [14][15][16] Among the abovementioned techniques, the fluorescence-based method has several advantages over other techniques due to the easy handling and simple observation process.…”

Section: Introductionmentioning

confidence: 99%

Electrophilicity modulated targeted luminescence of MOF-coated cotton composite for dual analyte detection in aqueous medium

Rana

Biswas

2023

Inorg. Chem. Front.

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Section: Introductionmentioning

confidence: 99%

Electrophilicity modulated targeted luminescence of MOF-coated cotton composite for dual analyte detection in aqueous medium

Rana

Biswas

2023

Inorg. Chem. Front.

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“…Therefore, the thermal tolerance of 1 and 1′ is comparable to the other Zr-based MOFs. 27,28 Sorption Study. Porosity is one of the most interesting features of a MOF.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…The thermal stability of the MOF was again confirmed by the variable-temperature PXRD measurement (Figure S9). Therefore, the thermal tolerance of 1 and 1′ is comparable to the other Zr-based MOFs. , …”

Section: Resultsmentioning

confidence: 99%

MOF-Fabric Composites Based on a Multi-Functional MOF as Luminescent Sensors for a Neurotransmitter and an Anti-Cancer Drug

Ghosh

Jayaraman

Hossain

et al. 2023

ACS Appl. Mater. Interfaces

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A biocompatible, reliable, fast, and nanomolar-level dual-functional sensor for a neurotransmitter (e.g., adrenaline) and an anti-cancer drug (e.g., 6-mercaptopurine (6-MP)) is still far away from the hand of modern-day researchers. To address this issue, we synthesized an aqua-stable, bio-friendly, thioureafunctionalized Zr(IV) metal−organic framework (MOF) for selective, rapid sensing of adrenaline and 6-MP with ultra-low limit of detection (LOD for adrenaline = 1.9 nM and LOD for 6-MP = 28 pM). This is the first MOF-based fluorescent sensor of both the targeted analytes. The sensor not only can detect adrenaline in HEPES buffer medium but also in different bio-fluids (e.g., human urine and blood serum) and pH media. It also exhibited 6-MP sensing ability in aqueous medium and in various wastewater specimens and pH solutions. For the quick and on-site detection of this neuro-messenger (adrenaline) and the drug (6-MP), cost-effective sensor-coated cotton fabric composites were fabricated. The MOF@cotton fabric composite is capable of detecting both the analytes up to the nanomolar level by the naked eye under UV light. The sensor can be recycled up to five times without significantly losing its efficiency. The Forster resonance energy transfer in the presence of adrenaline and inner-filter effect in the presence of 6-MP are the most likely reasons behind the quenching of the MOF's fluorescence intensity, which were proved with the help of appropriate instrumental techniques.

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“…Such an overlap ensured the resonance energy transfer from 1′ to vitamin B 12 , which is the most possible mechanism behind this selective quenching of fluorescence of 1′ in the presence of vitamin B 12 . The mechanism outlined above was used in many of the quenching-based sensing procedures reported in the literature. ,, …”

Section: Resultsmentioning

confidence: 99%

“…The mechanism outlined above was used in many of the quenchingbased sensing procedures reported in the literature. 2,39,40 Use of 1′ as a Catalyst. Due to the presence of basic sites, we investigated the catalytic performance of 1′.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

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

et al. 2023

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A zirconium(IV)-based metal−organic framework (MOF) fluorophore containing the 2,5-diaminoterephthalic acid (H 2 BDC-(NH) 2 ) linker was synthesized and characterized. The physicochemically stable, porous (S BET = 504 m 2 g −1 ) MOF (1′) exhibited selective and sensitive fluorescence turn-on behavior toward the sodium dodecyl sulfate (SDS) surfactant and turn-off response toward vitamin B 12 . This is the first ever reported MOF-based dual optical sensor of SDS and vitamin B 12 . Other competitive analytes did not interfere in the detection of both the analytes. Along with the lowest ever reported limit of detection (LOD) values (LOD for SDS = 108 nM and LOD for vitamin B 12 = 45.3 nM), 1′ displayed short response time for SDS (50 s) and vitamin B 12 (5 s) detection. The MOF was able to detect SDS in various real water samples and vitamin B 12 in various bio-fluids (urine and serum) and pH media. A MOF-coated cotton composite was fabricated, which displayed a visible color change under UV light even after treating it with a nanomolar concentration of both the analytes. The sensor displayed excellent reusability up to five cycles of sensing. Various experimental outcomes evidenced that the electrostatic interaction between the −NH 2 groups of the linker and the −SO 3 − group of SDS is the possible reason for the selective SDS sensing. For vitamin B 12 , the energy transfer from the probe to vitamin B 12 resulted in fluorescence quenching. In addition, the catalytic performance of 1′ was investigated in the condensation reaction between benzaldehyde derivatives with cyanoacetamide with high yields in ethanol at 70 °C. The solid was used for three cycles with no decrease in its activity and selectivity. PXRD and FESEM analysis before and after the reaction suggested the retention of the crystallinity of 1′, thus indicating catalyst stability.

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A fluorophore anchored MOF for fast and sensitive sensing of Cu(ii) and 3-nitrotyrosine in a physiological medium

Cited by 21 publications

References 54 publications

Electrophilicity modulated targeted luminescence of MOF-coated cotton composite for dual analyte detection in aqueous medium

Electrophilicity modulated targeted luminescence of MOF-coated cotton composite for dual analyte detection in aqueous medium

MOF-Fabric Composites Based on a Multi-Functional MOF as Luminescent Sensors for a Neurotransmitter and an Anti-Cancer Drug

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

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A fluorophore anchored MOF for fast and sensitive sensing of Cu(ii) and 3-nitrotyrosine in a physiological medium

Cited by 21 publications

References 54 publications

Electrophilicity modulated targeted luminescence of MOF-coated cotton composite for dual analyte detection in aqueous medium

Electrophilicity modulated targeted luminescence of MOF-coated cotton composite for dual analyte detection in aqueous medium

MOF-Fabric Composites Based on a Multi-Functional MOF as Luminescent Sensors for a Neurotransmitter and an Anti-Cancer Drug

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

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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