A trichromatic MOF composite for multidimensional ratiometric luminescent sensing

Zhao, He; Ni, Jun; Zhang, Jianjun; Li, Shuqin; Sun, Ying‐Ji; Zhou, Huajun; Li, Yanqin; Duan, Chunying

doi:10.1039/c8sc00021b

Cited by 100 publications

(60 citation statements)

References 53 publications

(19 reference statements)

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“…In addition, MOF sensors depends on the fluorescent intensity of single emission which usually influenced by many uncontrollable factors such as drift of light source and sensor concentration. Therefore, dual-emissive luminescent probe should be one breakthrough because this type of signal by making a comparison of the emission intensities of two different luminescent center to form self-calibrating mechanism that can avoid external factor such as fluctuations of light source, voltage, show improved sensitivity, and to the intended analyte [ 44 , 45 , 46 , 47 ]. However, there is no report for self-calibrating MOF-based luminescent probe that can selectively detect antioxidant sesamol molecule.…”

Section: Introductionmentioning

confidence: 99%

A Novel Tb@Sr-MOF as Self-Calibrating Luminescent Sensor for Nutritional Antioxidant

Wang

Lin²,

Luo

et al. 2018

Nanomaterials

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Sesamol, is well-known antioxidant and can reduce the rate of oxidation and prolong expiration date. It is also potentially antimutagenic and antihepatotoxic, the detection of sesamol is important and remains a huge challenge. Herein, a new 3D alkaline earth Sr metal organic framework [Sr(BDC)·DMAC·H2O]n (BDC = benzene-1,4-dicarboxylate; DMAC = N,N-dimethylacetamide) is synthesized and a probe based on Tb3+ functionalized Sr-MOF. The Tb(3+)@Sr-MOF showed good luminescence and thermal property. Due to the energy competition between sesamol and ligand, the luminescence intensity of sesamol increases meantime luminescence intensity of Tb3+ decreases, the ratio of the emission intensities (I344/I545) linearly increases with sesamol in concentrations ranging from 1 × 10−7 to 8 × 10−4 M. Furthermore, the fluorescence-detected circular test shows that the composite Tb(3+)@Sr-MOF can serve as ratiometric sensor for sensing of sesamol. This is the first example for self-calibrated detecting sesamol based on metal-organic framework (MOF).

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Section: Introductionmentioning

confidence: 99%

A Novel Tb@Sr-MOF as Self-Calibrating Luminescent Sensor for Nutritional Antioxidant

Wang

Lin²,

Luo

et al. 2018

Nanomaterials

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“…For example, when we randomly added aN AC solution into the D'ss uspensiona nd the two ratios of the mixture were determined to be 0.520 for I L /I [Pt] + and 0.467 for I L /I [Ru] 2 + .T hen the NAC could be identified as DNBP.W hen the NAC amount is added as the third dimension, an ovel 3Dcode recognition can be mapped out to further improvet he selectivity.F or example,t he data points 2-NPHEN and 4-NPHENa re very close in the 2D mapb ut can be clearly differentiated in the 3Dmap ( Figure 8B). Compared with our previously reported WLE probe for 3Dcode recognition of vapour-phasea nalytes, [13] here D achieves the same sensing to solutionp hase analytes, extending the application scope of this method in luminescent sensing.…”

Section: Sensing Of Nacs By the Wle Composite Dmentioning

confidence: 67%

“…From the perspectiveo fs ensing behaviours,t his probe significantly differs from our recently developed MOF composite while they share af ew features. [13] Regarding similarity,t hey are both trichromatic,W LE, and self-referencing, can achieve 2D code recognition of VOSs via the two VOS-dependent MOF ligand-to-ELM intensity ratios of their peak emissions for each VOS, and sometimes induce naked eyes-visible color changes from the startingw hite color during sensing. However,w hile the previous probe achieves qualitative sensing and 3D code recognition of NAC vapors using the sensing time as the third dimension, the current probe achieves quantitative sensing and 3D code recognition of solution-phase NACs and metal ionsu sing the titrated amount as the third dimension.…”

Section: Discussionmentioning

confidence: 99%

“…The probe achieves not only a 2D code recognitiono fV OSs by correlating each VOS with its two ratios of I MOF /I ELM but also a3 Dc ode recognition of NAC vapors by addingt ime as the third dimension and recording the time-dependent evolution of the two ratios during the sensing processes. In this contribution,w er eport an ew trichromatic MOF composite-based probe that not only perform similar qualitative sensing of VOSs as the previousr eported probe does, [13] but also a3 Dc ode recognitiona nd quantitative detection of solution-phase NACs and metal ions as such for the first time. The new blue-emitting MOF used is [Me 2 NH 2 ] 2 [Zn 5 (H 2 O) 2 (L) 6 ]·~32 DMF( 1)( H 2 L = 4- (5,7-dioxo-5,7-dihydroimidazo[4,5-f] )@1)i sW LE with the CIE coordinate being (0.33, 0.34).…”

Section: Introductionmentioning

confidence: 96%

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A Trichromatic and White‐Light‐Emitting MOF Composite for Multi‐Dimensional and Multi‐Response Ratiometric Luminescent Sensing

Dai

Zhang

et al. 2018

Chemistry A European J

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Present here is a new dual ratiometric luminescent probe D which is a trichromatic and white-light-emitting metal-organic framework (MOF) composite facilely obtained by incorporating red/green-emitting complex modules into a blue-emitting MOF. Probe D exhibits remarkable capabilities of sensing different volatile organic solvents (VOSs) via 2D code recognition of the two VOS-dependent MOF ligand-to-module ratios of the emission-peak intensities. For specific VOSs, the resultant luminescent color changes from the starting white color are sharp enough to be visible to the naked eye. Remarkably, D can differentiate solution-phase nitroaromatics and metal ions by recording the evolution of the two ratios during titration processes, enabling an unusual 3D code recognition using the titrant amount as the third dimension for the first time. D also can be used to detect dinoseb, Fe and Al ions quantitatively by analysis of the ratios with detection limits as low as 0.050, 0.41, and 0.12 ppm, respectively. Clearly, such a self-referencing trichromatic probe can maximize the output information and significantly enhance the detection selectivity and sensitivity via multi-dimensional sensing, and has great potentials for practical applications.

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“…The self‐calibrating mechanism from different but correlated emission centers can omit the environmental interference and improve sensitivity and selectivity toward the targeted analytes. [ 12 ] Due to similar ionic radii and coordination behavior of different lanthanide ions, multicenter Ln‐CPs can be assembled by doping different lanthanide ions into the same crystalline equivalent metal positions of Ln‐CPs to result in multiple emissions through modulating the “antenna effect”. [ 13 ] The capability of self‐calibrating sensing or distinguishing multiple analytes in aqueous solution by multicenter Ln‐CPs has not been well investigated yet.…”

Section: Introductionmentioning

confidence: 99%

Water‐Stable Lanthanide Coordination Polymers with Triple Luminescent Centers for Tunable Emission and Efficient Self‐Calibration Sensing Wastewater Pollutants

Gao

Wang

et al. 2020

Advanced Optical Materials

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Conventional luminescent sensors relying on single emission responsive to analytes demonstrate limited sensitivity and selectivity and developing novel self‐calibration probes is highly required. A series of water‐stable coordination polymers (CPs) with three emitting centers for tunable emissions is reported. They are facilely synthesized by simultaneously doping red‐emitting Eu3+ and green‐emitting Tb3+ into the same framework. The versatile Eu0.67Tb0.33–CP is applied to conveniently distinguishing different nitroaromatics pollutants and multidimensional ratiometric sensing CrO42−/Cr2O72−. Specific nitroaromatics can cause unique changes to the ligand→Eu3+/Tb3+ energy transfer efficiency, while CrO42−/Cr2O72− intriguingly quench the three emissions at different rates. Each nitroaromatic exhibits notably correlation to a unique combination of the two ligand→Eu3+/Tb3+ emission intensity ratios, enabling a 2D fingerprint recognition. Furthermore, the concentration‐dependent evolution of the two ratios upon exposure to CrO42−/Cr2O72− can be mapped out, achieving a 3D code recognition. As a result, the sensor demonstrates selective recognition of 4‐nitrophenol and CrO42−/Cr2O72− with high sensitivity and selectivity as well as great recycling ability. Both the synthetic and sensing strategies present a promising strategy to develop facile and effective ratiometric sensors.

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A trichromatic MOF composite for multidimensional ratiometric luminescent sensing

Abstract: A trichromatic MOF composite utilizes its MOF matrix and two encapsulated cations collectively to achieve unprecedented multi-dimensional ratiometric luminescent sensing with high selectivity and sensitivity.

Cited by 100 publications

References 53 publications

A Novel Tb@Sr-MOF as Self-Calibrating Luminescent Sensor for Nutritional Antioxidant

A Novel Tb@Sr-MOF as Self-Calibrating Luminescent Sensor for Nutritional Antioxidant

A Trichromatic and White‐Light‐Emitting MOF Composite for Multi‐Dimensional and Multi‐Response Ratiometric Luminescent Sensing

Water‐Stable Lanthanide Coordination Polymers with Triple Luminescent Centers for Tunable Emission and Efficient Self‐Calibration Sensing Wastewater Pollutants

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