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Xu J, Wang S, Yi Z, Wu X, Wang M, Liu Y, Wu Y, Chen D, Lai J, Sun H. Novel biocompatible N-rich AIE fluorescent probe for live cell imaging and visual onsite detection of uranium. Mikrochim Acta 2024; 191:302. [PMID: 38709346 DOI: 10.1007/s00604-024-06390-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 04/26/2024] [Indexed: 05/07/2024]
Abstract
A sensitive and biocompatible N-rich probe for rapid visual uranium detection was constructed by grafting two trianiline groups to 2,6-bis(aminomethyl)pyridine. Possessing excellent aggregation-induced emission (AIE) property and the advantages to form multidentate chelate with U selectively, the probe has been applied successfully to visualize uranium in complex environmental water samples and living cells, demonstrating outstanding anti-interference ability against large equivalent of different ions over a wide effective pH range. A large linear range (1.0 × 10-7-9.0 × 10-7 mol/L) and low detection limit (72.6 nmol/L, 17.28 ppb) were achieved for the visual determination of uranium. The recognition mechanism, photophysical properties, analytical performance and cytotoxicity were systematically investigated, demonstrating high potential for fast risk assessment of uranium pollution in field and in vivo.
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Affiliation(s)
- Jie Xu
- College of Environmental Science & Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Shenneng Wang
- College of Environmental Science & Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Zhenni Yi
- College of Environmental Science & Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Xiaoyi Wu
- College of Environmental Science & Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Menghao Wang
- College of Environmental Science & Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Yu Liu
- College of Environmental Science & Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Yuexi Wu
- School of Chemistry, South China Normal University, Guangzhou, 510006, China
| | - Diyun Chen
- College of Environmental Science & Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Jiaping Lai
- School of Chemistry, South China Normal University, Guangzhou, 510006, China.
| | - Hui Sun
- College of Environmental Science & Engineering, Guangzhou University, Guangzhou, 510006, China.
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou, 510006, China.
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An C, Li H, Liu C, Liu D, Wang W, Zhang C, Zhao B, Liu B, Tian G. Novel Flavonoid Photoswitchable "Turn-On" Fluorescent Chemosensors: Synthesis of Bromo Flavonols for Nanomolar Aluminum Ion Detection and Cellular Imaging, among Other Applications. J Fluoresc 2023:10.1007/s10895-023-03469-9. [PMID: 37906358 DOI: 10.1007/s10895-023-03469-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 10/12/2023] [Indexed: 11/02/2023]
Abstract
Aluminum (Al), a non-essential element in living systems, can potentially cause chronic toxicity. Therefore, it is crucial to have a specific and sensitive method for detecting Al3+ in order to assess its risk to life. In this study, we designed and synthesized a novel fluorescent probe (IV) based on bromoflavonol. Upon binding to Al3+, probe IV exhibits a blue shift in emission and enhanced fluorescence, making it suitable for Al3+ detection. Our UV-Vis absorption and fluorescence emission spectra demonstrate that probe IV has high selectivity and sensitivity towards Al3+ while being immune to interference from other metal ions. Through fluorescence titration, we determined that the detection limit (LOD) of probe IV for Al3+ is 1.8 × 10-8 mol/L. Job's curve and 1 H NMR titration further confirmed a 1:1 binding stoichiometry between probe IV and Al3+. Additionally, using DFT (Density Functional Theory), we calculated the energy gap difference between IV and IV + Al3+ and found that the complex formed by probe IV and Al3+ is more stable than IV alone. We successfully detected Al3+ in tap water and river water from the middle regions of the Han River, achieving recoveries of over 96% using this probe. This demonstrates its potential for quantitative detection of Al3+ in environmental water samples. Moreover, we successfully used the probe for imaging Al3+ in MG63 cells, suggesting its potential application in biological imaging.
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Affiliation(s)
- Chaona An
- Shaanxi Key Laboratory of Catalysis, School of Chemistry and Environment Science, Shaanxi University of Technology, 723000, Hanzhong, Shaanxi, China.
| | - Hengyi Li
- Key Laboratory of Environment and Disease Genetics, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Cunfang Liu
- Shaanxi Key Laboratory of Catalysis, School of Chemistry and Environment Science, Shaanxi University of Technology, 723000, Hanzhong, Shaanxi, China
| | - Di Liu
- Institute of Molecular and Translational Medicine (IMTM), Department of Biochemistry and Molecular Biology, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China
| | - Wenlong Wang
- Institute of Molecular and Translational Medicine (IMTM), Department of Biochemistry and Molecular Biology, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China
| | - Chenyang Zhang
- Institute of Molecular and Translational Medicine (IMTM), Department of Biochemistry and Molecular Biology, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China
| | - Bailin Zhao
- Institute of Molecular and Translational Medicine (IMTM), Department of Biochemistry and Molecular Biology, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China
| | - Bo Liu
- Shaanxi Key Laboratory of Catalysis, School of Chemistry and Environment Science, Shaanxi University of Technology, 723000, Hanzhong, Shaanxi, China
| | - Guanghui Tian
- Shaanxi Key Laboratory of Catalysis, School of Chemistry and Environment Science, Shaanxi University of Technology, 723000, Hanzhong, Shaanxi, China
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Budziak-Wieczorek I, Kamiński D, Skrzypek A, Ciołek A, Skrzypek T, Janik-Zabrotowicz E, Arczewska M. Naturally Occurring Chalcones with Aggregation-Induced Emission Enhancement Characteristics. Molecules 2023; 28:molecules28083412. [PMID: 37110646 PMCID: PMC10146426 DOI: 10.3390/molecules28083412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/06/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
In this paper, the natural chalcones: 2'-hydroxy-4,4',6'-trimethoxychalcone (HCH), cardamonin (CA), xanthohumol (XN), isobavachalcone (IBC) and licochalcone A (LIC) are studied using spectroscopic techniques such as UV-vis, fluorescence spectroscopy, scanning electron microscopy (SEM) and single-crystal X-ray diffraction (XRD). For the first time, the spectroscopic and structural features of naturally occurring chalcones with varying numbers and positions of hydroxyl groups in rings A and B were investigated to prove the presence of the aggregation-induced emission enhancement (AIEE) effect. The fluorescence studies were carried out in the aggregate form in a solution and in a solid state. As to the results of spectroscopic analyses conducted in the solvent media, the selected mixtures (CH3OH:H2O and CH3OH:ethylene glycol), as well as the fluorescence quantum yield (ϕF) and SEM, confirmed that two of the tested chalcones (CA and HCH) exhibited effective AIEE behaviour. On the other hand, LIC showed a large fluorescence quantum yield and Stokes shift in the polar solvents and in the solid state. Moreover, all studied compounds were tested for their promising antioxidant activities via the utilisation of 1,1- diphenyl-2-picrylhydrazyl as a free-radical scavenging reagent as well as potential anti-neurodegenerative agents via their ability to act as acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE) inhibitors. Finally, the results demonstrated that licochalcone A, with the most desirable emission properties, showed the most effective antioxidant (DPPH IC50 29%) and neuroprotective properties (AChE IC50 23.41 ± 0.02 μM, BuChE IC50 42.28 ± 0.06 μM). The substitution pattern and the biological assay findings establish some relation between photophysical properties and biological activity that might apply in designing AIEE molecules with the specified characteristics for biological application.
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Affiliation(s)
- Iwona Budziak-Wieczorek
- Department of Chemistry, University of Life Sciences in Lublin, Akademicka 15, 20-950 Lublin, Poland
| | - Daniel Kamiński
- Institute of Chemical Sciences, Maria Curie-Skłodowska University, Pl. Marii Curie-Sklodowskiej 3, 20-031 Lublin, Poland
| | - Alicja Skrzypek
- Department of Chemistry, University of Life Sciences in Lublin, Akademicka 15, 20-950 Lublin, Poland
| | - Anna Ciołek
- Department of Chemistry, University of Life Sciences in Lublin, Akademicka 15, 20-950 Lublin, Poland
| | - Tomasz Skrzypek
- Department of Biomedicine and Environmental Research, Faculty of Medicine, The John Paul II Catholic University of Lublin, Konstantynów 1J, 20-708 Lublin, Poland
| | - Ewa Janik-Zabrotowicz
- Department of Cell Biology, Institute of Biological Sciences, Maria Curie-Sklodowska University, ul. Akademicka 19, 20-033 Lublin, Poland
| | - Marta Arczewska
- Department of Biophysics, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin, Poland
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