Sensing Properties of NH<sub>2</sub>-MIL-101 Series for Specific Amino Acids via Turn-On Fluorescence
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 NH<sub>2</sub>-MIL-101 series was utilized for sensing specific amino acids. The resul...
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MDPI AG
2021-09-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/26/17/5336 |
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| author | Jing Dong Xiao-Yao Dao Xiao-Yu Zhang Xiu-Du Zhang Wei-Yin Sun |
| author_facet | Jing Dong Xiao-Yao Dao Xiao-Yu Zhang Xiu-Du Zhang Wei-Yin Sun |
| author_sort | Jing Dong |
| collection | DOAJ |
| description | 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 NH<sub>2</sub>-MIL-101 series was utilized for sensing specific amino acids. The results show that cysteine (Cys) can significantly enhance the fluorescence emission of NH<sub>2</sub>-MIL-101-Fe suspended in water, while NH<sub>2</sub>-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 NH<sub>2</sub>-MIL-101-Fe and NH<sub>2</sub>-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. |
| first_indexed | 2024-03-10T08:06:27Z |
| format | Article |
| id | doaj.art-f8cf47db9c834e8f99010333a093663a |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T08:06:27Z |
| publishDate | 2021-09-01 |
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| series | Molecules |
| spelling | doaj.art-f8cf47db9c834e8f99010333a093663a2023-11-22T11:02:35ZengMDPI AGMolecules1420-30492021-09-012617533610.3390/molecules26175336Sensing Properties of NH<sub>2</sub>-MIL-101 Series for Specific Amino Acids via Turn-On FluorescenceJing Dong0Xiao-Yao Dao1Xiao-Yu Zhang2Xiu-Du Zhang3Wei-Yin Sun4Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, ChinaCoordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, ChinaCoordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, ChinaCollege of Chemistry and Materials Science, Key Laboratory of Functional Molecular Solids Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Key Laboratory of Functional Molecular Solids, Anhui Normal University, Wuhu 241002, ChinaCoordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, ChinaMetal–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 NH<sub>2</sub>-MIL-101 series was utilized for sensing specific amino acids. The results show that cysteine (Cys) can significantly enhance the fluorescence emission of NH<sub>2</sub>-MIL-101-Fe suspended in water, while NH<sub>2</sub>-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 NH<sub>2</sub>-MIL-101-Fe and NH<sub>2</sub>-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.https://www.mdpi.com/1420-3049/26/17/5336metal–organic frameworksMIL-101amino acidsfluorescence sensingturn-on effect |
| spellingShingle | Jing Dong Xiao-Yao Dao Xiao-Yu Zhang Xiu-Du Zhang Wei-Yin Sun Sensing Properties of NH<sub>2</sub>-MIL-101 Series for Specific Amino Acids via Turn-On Fluorescence Molecules metal–organic frameworks MIL-101 amino acids fluorescence sensing turn-on effect |
| title | Sensing Properties of NH<sub>2</sub>-MIL-101 Series for Specific Amino Acids via Turn-On Fluorescence |
| title_full | Sensing Properties of NH<sub>2</sub>-MIL-101 Series for Specific Amino Acids via Turn-On Fluorescence |
| title_fullStr | Sensing Properties of NH<sub>2</sub>-MIL-101 Series for Specific Amino Acids via Turn-On Fluorescence |
| title_full_unstemmed | Sensing Properties of NH<sub>2</sub>-MIL-101 Series for Specific Amino Acids via Turn-On Fluorescence |
| title_short | Sensing Properties of NH<sub>2</sub>-MIL-101 Series for Specific Amino Acids via Turn-On Fluorescence |
| title_sort | sensing properties of nh sub 2 sub mil 101 series for specific amino acids via turn on fluorescence |
| topic | metal–organic frameworks MIL-101 amino acids fluorescence sensing turn-on effect |
| url | https://www.mdpi.com/1420-3049/26/17/5336 |
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