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Song J, Liu Y, Wang C, Xu B, Zhao L. A Dipeptide-derived Dansyl Fluorescent Probe for the Detection of Cu 2+ in Aqueous Solutions. J Fluoresc 2023; 33:2515-2521. [PMID: 37204534 DOI: 10.1007/s10895-023-03274-4] [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: 03/31/2023] [Accepted: 05/15/2023] [Indexed: 05/20/2023]
Abstract
A novel dansyl-based fluorescent probe (DG) was designed via the introduction of a dipeptide, glycyl-L-glutamine. DG showed good selectivity and sensitivity towards Cu2+ in aqueous solutions in the pH span of ~ 6-12. The coordination of Cu2+ with the dipeptide moiety led to the fluorescent quenching of the dansyl fluorophore. The association constant value for Cu2+ was 0.78 × 104 M- 1 in a 1 to 1 stoichiometric ratio. The detection limit in HEPES buffer solution (10 mM, pH 7.4) was 1.52 µM. DG also showed strong anti-interference capability in the presence of other metal ions. It was worth noting that DG maintained the detection ability towards Cu2+ in real water samples and cell imaging, implying the potential application opportunities in complicated environments.
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Affiliation(s)
- Jian Song
- School of Light Industry, Beijing Technology and Business University, Beijing, 100048, China
| | - Yu Liu
- School of Light Industry, Beijing Technology and Business University, Beijing, 100048, China
| | - Ce Wang
- School of Light Industry, Beijing Technology and Business University, Beijing, 100048, China
| | - Baocai Xu
- School of Light Industry, Beijing Technology and Business University, Beijing, 100048, China
| | - Li Zhao
- School of Light Industry, Beijing Technology and Business University, Beijing, 100048, China.
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Beijing, 100048, China.
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Cheng S, Sun R, Wu Z, Mei H, Yang H, Kong Q, Xu K. A Novel Reversible Fluorescent Probe for Cu 2+and S 2-Ions and Imaging in Living Cells. Methods Appl Fluoresc 2022; 10. [PMID: 35588725 DOI: 10.1088/2050-6120/ac719a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 05/19/2022] [Indexed: 11/12/2022]
Abstract
A novel fluorescent probe TSOC (thiazole salicylaldehyde oxazole chlorinated) was synthesized based on benzothiazole conjugated olefinic bond with salicylicaldehyde unit as fluorophore and a phenyl oxazole unit as bonding unit. The probe could reversibly detect of Cu2+ and S2- over other common ions with longer emission and large stokes shift in an aqueous solution at pH 7.3 (DMSO-Hepes, v/v, 5:1, 10 mM). The bonding mechanism was supported through the titration experiment of fluorescence and absorption spectroscopy, 1H-NMR titration, HR-MS and DFT calculations. Moreover, the probe further exhibited good cell permeability and were successfully used to visualize Cu2+ and S2- in living cells.
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Affiliation(s)
- Shuaici Cheng
- Queen Mary University of London Engineering School, Northwestern Polytechnical University, Xi An 710072 China, Xi'an, 710072, CHINA
| | - Ran Sun
- Shenzhen Research Institute of Northwestern Polytechnical University, Shenzhen 518057, China, Shenzhen, 518057, CHINA
| | - Zhuozhao Wu
- Northwestern Polytechnical University, Xi An 710072, China, Xi'an, 710072, CHINA
| | - Huihui Mei
- Henan University, Henan University, Kaifeng 475004, China, Kaifeng, 475001, CHINA
| | - Haocheng Yang
- Northwestern Polytechnical University, Xi An 710129, China, Xi'an, 710072, CHINA
| | - Qingqing Kong
- Northwestern Polytechnical University, Xi An 710129, China, Xi'an, 710072, CHINA
| | - Kuoxi Xu
- Henan University, Henan University, Kaifeng 475004, China, Kaifeng, 475004, CHINA
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Wen Y, Xie Z, Shi T, Chu Y, Zhou R, Tao Y, Liang H, Qiu H, Zhao Y. Synthesis of Triazole Functionalized Triphenylamine Cu 2+ Fluorescent Probe and Its Application in Detection and HeLa Cells. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202111013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Liu Y, Jiang B, Zhao L, Zhao L, Wang Q, Wang C, Xu B. A dansyl-based fluorescent probe for sensing Cu 2+ in aqueous solution. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 261:120009. [PMID: 34087769 DOI: 10.1016/j.saa.2021.120009] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 05/20/2021] [Accepted: 05/22/2021] [Indexed: 06/12/2023]
Abstract
A fluorescent probe based on a glycyl-L-tyrosine-modified dansyl derivative (D-GT) is designed and synthesized. D-GT demonstrated great detection performance toward Cu2+ in an aqueous solution. Fluorescence quenching occurred due to the coordination of Cu2+ with D-GT. The sensitive detection of D-GT to Cu2+ was applied in aqueous solution within a wide pH span (6-12). A 1:1 coordinate stoichiometric way and an association constant of 6.47 × 104 M-1 between D-GT and Cu2+ were determined. The measured detection limit for Cu2+ in HEPES buffer solution (10 mM, pH 7.4) was 0.69 μM. The probe displayed an appropriate sensitivity toward Cu2+ in real drinking water samples and living cells, which reveals the potential applications of D-GT in complicated environments.
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Affiliation(s)
- Yu Liu
- School of Light Industry, Beijing Technology and Business University, Beijing 100048, China
| | - Bing Jiang
- School of Light Industry, Beijing Technology and Business University, Beijing 100048, China
| | - Linlin Zhao
- School of Light Industry, Beijing Technology and Business University, Beijing 100048, China
| | - Li Zhao
- School of Light Industry, Beijing Technology and Business University, Beijing 100048, China.
| | - Qiyu Wang
- School of Light Industry, Beijing Technology and Business University, Beijing 100048, China.
| | - Ce Wang
- School of Light Industry, Beijing Technology and Business University, Beijing 100048, China
| | - Baocai Xu
- School of Light Industry, Beijing Technology and Business University, Beijing 100048, China
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Cao XY, Pang CM, Xiao Y, Xiao WQ, Luo SH, He JP, Wang ZY. Preparation of Large Conjugated Polybenzimidazole Fluorescent Materials and Their Application in Metal Ion Detection. Polymers (Basel) 2021; 13:polym13183091. [PMID: 34577993 PMCID: PMC8472194 DOI: 10.3390/polym13183091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/06/2021] [Accepted: 09/10/2021] [Indexed: 01/19/2023] Open
Abstract
A new type of conjugated polybenzimidazole (CPBI) was synthesized through a simple polycondensation reaction without metal catalysis, and N-alkylation modification was carried out to solve the problems of solubility and fluorescence properties. A series of nano-microsphere polymers CPBIn with large conjugation, good solubility, and strong fluorescence has been successfully used as “turn-off” fluorescent probes for the first time. The results show that, under suitable N-alkylation conditions, the obtained CPBIn can be used as a highly sensitive and selective fluorescent probe for the detection of Cu2+ and Zn2+ at the same time, and their detection limits are both nM levels. In addition, CPBI2 can be designed as an ultra-sensitive IMPLICATION logic gate at the molecular level, cyclically detecting Cu2+. With the test paper containing CPBI2, easy and quick on-site detection can be achieved. This research provides a new idea for the brief synthesis of multifunctional materials.
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Affiliation(s)
- Xi-Ying Cao
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, China; (X.-Y.C.); (Y.X.); (W.-Q.X.); (J.-P.H.)
| | - Chu-Ming Pang
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, China; (X.-Y.C.); (Y.X.); (W.-Q.X.); (J.-P.H.)
- School of Health Medicine, Guangzhou Huashang College, Guangzhou 511300, China
- Correspondence: (C.-M.P.); (S.-H.L.); (Z.-Y.W)
| | - Ying Xiao
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, China; (X.-Y.C.); (Y.X.); (W.-Q.X.); (J.-P.H.)
| | - Wan-Qing Xiao
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, China; (X.-Y.C.); (Y.X.); (W.-Q.X.); (J.-P.H.)
| | - Shi-He Luo
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, China; (X.-Y.C.); (Y.X.); (W.-Q.X.); (J.-P.H.)
- Correspondence: (C.-M.P.); (S.-H.L.); (Z.-Y.W)
| | - Jin-Ping He
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, China; (X.-Y.C.); (Y.X.); (W.-Q.X.); (J.-P.H.)
| | - Zhao-Yang Wang
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, China; (X.-Y.C.); (Y.X.); (W.-Q.X.); (J.-P.H.)
- Correspondence: (C.-M.P.); (S.-H.L.); (Z.-Y.W)
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Xu Y, Li L, Bai L, Tian S, Zhang L, Huang X, Zhu Y, Tao F, Wang L, Li G. Water-soluble fluorescent chemosensor based on Schiff base derivative terminated PEG for highly efficient detection of Al3+ in pure aqueous media. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152335] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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