Amino group dependent sensing properties of metal–organic frameworks: selective turn-on fluorescence detection of lysine and arginine

Dong, Jing; Zhang, Xiu-Du; Xie, Xia-Fei; Guo, Fan; Sun, Wei‐Yin

doi:10.1039/d0ra06879a

Cited by 41 publications

(20 citation statements)

References 35 publications

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“…Therefore, it could be concluded preliminarily that the sensing capability of NH 2 -MIL-101-Fe toward Cys and of NH 2 -MIL-101-Al toward Lys and Arg could be attributed to the structural collapse and such mechanisms can be excluded for NH 2 -MIL-101-Al toward His. To further investigate the intrinsic reason, we speculate that it is the encapsulation of His into the pores of NH 2 -MIL-101-Al that causes the fluorescence emission intensity enhancement based on the investigation of our previous work [ 38 ]. Thus, we employed 1 H NMR and FT-IR measurements to verify this speculation.…”

Section: Resultsmentioning

confidence: 99%

“…Furthermore, the modification of MOFs with various functionalized groups could help to generate specific sensing sites, such as open metal sites, Lewis acid/base sites and so on, toward guest molecules, which could improve the sensing performance of MOFs or even endow MOFs with the sensing capacity [ 37 ]. For example, our recent work has demonstrated that the amino-functionalized UiO-66 could be used as fluorescent sensor for Lys and Arg, while the parent UiO-66 without the amino group does not exhibit such a sensing capacity for amino acids [ 38 ].…”

Section: Introductionmentioning

confidence: 99%

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Sensing Properties of NH2-MIL-101 Series for Specific Amino Acids via Turn-On Fluorescence

et al. 2021

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Metal–organic frameworks (MOFs) have been demonstrated to be desired candidates for sensing definite species owing to their tunable composition, framework structure and functionality. In this work, the NH2-MIL-101 series was utilized for sensing specific amino acids. The results show that cysteine (Cys) can significantly enhance the fluorescence emission of NH2-MIL-101-Fe suspended in water, while NH2-MIL-101-Al exhibits the ability to sense lysine (Lys), arginine (Arg) and histidine (His) in aqueous media via turn-on fluorescence emission. Titration experiments ensure that NH2-MIL-101-Fe and NH2-MIL-101-Al can selectively and quantitatively detect these amino acids. The sensing mechanism was examined and discussed. The results of this study show that the metal centers in MOFs are crucial for sensing specific amino acids.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sensing Properties of NH2-MIL-101 Series for Specific Amino Acids via Turn-On Fluorescence

et al. 2021

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“…And this method does not require complicated preparation procedure or expensive equipment to achieve the experimental purpose. Besides, compared with some of reported FL sensing materials, complex 3 shows better fluorescence detection ability and this work is to detect arginine by fluorescence quenching, but references [53,54] are both fluorescence 'turn-on' detection. And, complex 3 showed good chemical stability during the detection process.…”

Section: Detection Of L-argininementioning

confidence: 95%

Framework Materials Based on Naphthalenediimide Derivatives Supported by Aromatic Carboxylic Acids for Application as Multifunctional Fluorescence Sensors

et al. 2021

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In this work, based on the conjugated structure of the naphthalene ring system, four stable Cd-NDI complexes {[Cd-o-H 2 BDC = phthalic acid; m-H 2 BDC = iso-phthalic acid; p-H 2 BDC = p-phthalic acid; H 3 TIBTC = 2,4,6-triiodo-1,3,5-benzene tricarboxylic acid) are designed and synthesized. The four Cd-NDI complexes have good luminescence properties, and complexes 1-3 can selectively detect Cr 2 O 7 2À and L-Arginine in water. Complex 1 has the best ability to detect Cr 2 O 7 2À with a limit of detection (LOD) of 2.32 μM; complex 3 can be employed for the detection of Larginine with a LOD of 2.25 μM. Complex 1-3 may be useful for monitoring water quality and treating wastewater as a good fluorescence sensor. In addition, based on the specific detection species of C=N bonds by complexes 1-3, we take complex 3 as an example to conduct preliminary studies monitoring a Schiff base reaction in situ with fluorescence quenching. This provides a new method for monitoring organic reactions. Besides, we also have explored the ability of complex 4 to detect pnitroaniline. The results show that the complex 4 could selectively detect p-nitroaniline with a LOD of 5.12 μM.

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“…Consequently, much efforts have been devoted to the design and synthesis of new PMOFs as chemical sensors for the detection of diverse toxic pollutants and explosive hazards. [11][12][13] It is well known that the function properties of PMOFs are intimately related with their structures. [14][15][16] In order to obtain the desired MOFs, it is important for us to rationally select organic ligands and metal components.…”

Section: Introductionmentioning

confidence: 99%

Bifunctional Sr(II)‐terephthalate compound: gas adsorption and luminescence sensing properties

Guo

Liang

Chiu

et al. 2021

Zeitschrift anorg allge chemie

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A new thermostable Sr(II) compound, formulated as [Sr-(bdc)(H 2 O)(DMF)] n • x(solvent) (1, H 2 bdc = terephthalic acid, DMF = N,N'-dimethylformamide), has been synthesized from the solvothermal reaction of Sr(NO 3 ) 2 and H 2 bdc. The X-ray structural analysis revealed that compound 1 features a 3D framework based on 1D Sr(II)-carboxylate chains, and the coordinated and free solvent molecules filled in the 1D channels of 1, which can be easily removed from the 3D framework via heat treatment activation. The obtained solvent-free samples 1 a not only shows high adsorption capacities of C 2 H 2 and CO 2 at 298 K, moderate adsorption selectivity for C 2 H 2 /CH 4 , CO 2 /CH 4 , but also can be used as a luminescent probe for the detection of nitroaromatic explosives.

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Amino group dependent sensing properties of metal–organic frameworks: selective turn-on fluorescence detection of lysine and arginine

Abstract: The amino group of UiO-66-NH2 was demonstrated to play an important role in selective fluorescence turn-on sensing of lysine and arginine.

Cited by 41 publications

References 35 publications

Sensing Properties of NH2-MIL-101 Series for Specific Amino Acids via Turn-On Fluorescence

Sensing Properties of NH2-MIL-101 Series for Specific Amino Acids via Turn-On Fluorescence

Framework Materials Based on Naphthalenediimide Derivatives Supported by Aromatic Carboxylic Acids for Application as Multifunctional Fluorescence Sensors

Bifunctional Sr(II)‐terephthalate compound: gas adsorption and luminescence sensing properties

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