1
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Tao X, Mao Y, Alam S, Wang A, Qi X, Zheng S, Jiang C, Chen SY, Lu H. Sensitive fluorescence detection of glyphosate and glufosinate ammonium pesticides by purine-hydrazone-Cu 2+ complex. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 314:124226. [PMID: 38560950 DOI: 10.1016/j.saa.2024.124226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/25/2024] [Accepted: 03/29/2024] [Indexed: 04/04/2024]
Abstract
Organophosphorus pesticides play an important role as broad-spectrum inactivating herbicides in agriculture. Developing a method for rapid and efficient organophosphorus pesticides detection is still urgent due to the increasing concern on food safety. An organo-probe (ZDA), synthesized by purine hydrazone derivative and 2,2'-dipyridylamine derivative, was applied in sensitive recognition of Cu2+ with detection limit of 300 nM. Mechanism study via density functional theory (DFT) and job's plot experiment revealed that ZDA and Cu2+ ions form a 1:2 complex quenching the fluorescence emission. Moreover, this fluorescent complex ZDA-Cu2+ was applicable for detecting glyphosate and glufosinate ammonium following fluorescence enhancement mechanism, with detection limits of 11.26 nM and 11.5 nM, respectively. Meanwhile, ZDA-Cu2+ was effective and sensitive when it is used for pesticide detection, reaching the maximum value and stabilizing in 1 min. Finally, the ZDA-Cu2+ probe could also be tolerated in cell assay environment, implying potential bio-application.
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Affiliation(s)
- Xuanzuo Tao
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212000, China
| | - Yanxia Mao
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212000, China
| | - Said Alam
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212000, China
| | - Anguan Wang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212000, China
| | - Xinyu Qi
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Shaojun Zheng
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212000, China
| | - Chunhui Jiang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212000, China.
| | - Shu-Yang Chen
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China.
| | - Hongfei Lu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212000, China.
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2
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Wang A, Mao Y, Chen X, Lu L, Jiang C, Lu H. A purine-based fluorescent probe for H 2S detection and imaging of cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123674. [PMID: 38042125 DOI: 10.1016/j.saa.2023.123674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 11/16/2023] [Accepted: 11/20/2023] [Indexed: 12/04/2023]
Abstract
Hydrogen sulfide (H2S) is a gas with a toxic odor that plays an irreplaceable role in physiological activities within the mammalian body. Therefore, it is important to do the distribution and quantitative detection of H2S in mammalian cells. In this paper, a fluorescence probe (EDPH) based on purine scaffold was designed and synthesized with high sensitivity and good selectivity. H2S induced ether bond breakage in EDPH, resulting in a significant redshift of the absorption band (from 370 nm to 500 nm) with a Stokes shift of 130 nm. After the addition of H2S, the fluorescence intensity of EDPH showed a good linear correlation with the concentration of H2S, which enabled the quantitative detection of H2S with a low limit of detection (41 nM). Finally, the EDPH was applied to the cellular Hele, and the probe has good cellularity imaging capability for the detection of H2S in living systems.
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Affiliation(s)
- Anguan Wang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, 212000 Zhenjiang, China
| | - Yanxia Mao
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, 212000 Zhenjiang, China
| | - Xu Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, 212000 Zhenjiang, China
| | - Linchuan Lu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, 212000 Zhenjiang, China
| | - Chunhui Jiang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, 212000 Zhenjiang, China.
| | - Hongfei Lu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, 212000 Zhenjiang, China.
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3
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Chen X, Mao Y, Wang A, Lu L, Shao Q, Jiang C, Lu H. Synthesis and application of purine-based fluorescence probe for continuous recognition of Cu 2+ and glyphosate. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 304:123291. [PMID: 37639808 DOI: 10.1016/j.saa.2023.123291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/21/2023] [Accepted: 08/21/2023] [Indexed: 08/31/2023]
Abstract
In this study, a novel fluorescent sensor, N,N-dimethyl-4-((2-(8-m-ethyl-9-(naphthalen-1-yl)-9H-purin-6-yl)hydrazineylidene)methyl)aniline(PHA), which was constructed via Schiff base reaction of purine derivatives and dimethylaminobenzaldehyde. This probe showed significant selective fluorescence quenching of Cu2+, and accompanying with an increase in Cu2+ concentration and a change in solution color from colorless to yellow. The outstanding features of PHA include low detection limit (0.429 μM), strong anti-interference ability and fast response time. We further investigated the chelation mechanism of PHA and Cu2+ by Job's plot experiment, density generalization theory (DFT), and the probe PHA can form a 1:2 complex with Cu2+ ions, leading to a fluorescence quenching process, thus realizing the rapid detection of Cu2+. In addition, this new fluorescent sensor [PHA-Cu2+] can be used to detect pesticide residues in solution. When the [PHA-Cu2+] system was mixed with glyphosate solution, that a fluorescence recovering was observed. This may be because glyphosate chelates more strongly with Cu2+ ions, making the copper ions dissociated from the [PHA-Cu2+] system. The detection limit of the fluorescent sensor [PHA-Cu2+] for glyphosate was 18.77 nM. Finally, the sensor system has been successfully applied in fluorescence imaging of glyphosate in living cells.
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Affiliation(s)
- Xu Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China
| | - Yanxia Mao
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China
| | - Anguan Wang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China
| | - Linchuan Lu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China
| | - Qi Shao
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China
| | - Chunhui Jiang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China.
| | - Hongfei Lu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China.
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4
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Alberti G, Magnaghi LR, Iurato M, Zanoni C, Biesuz R. Colorimetric Paper-Based Analytical Devices (PADs) Backed by Chemometrics for Pd(II) Detection. SENSORS (BASEL, SWITZERLAND) 2023; 23:7425. [PMID: 37687882 PMCID: PMC10490827 DOI: 10.3390/s23177425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 08/23/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023]
Abstract
This paper presents the development of cheap and selective Paper-based Analytical Devices (PADs) for selective Pd(II) determination from very acidic aqueous solutions. The PADs were obtained by impregnating two cm-side squares of filter paper with an azoic ligand, (2-(tetrazolylazo)-1,8 dihydroxy naphthalene-3,6,-disulphonic acid), termed TazoC. The so-obtained orange TazoC-PADs interact quickly with Pd(II) in aqueous solutions by forming a complex purple-blue-colored already at pH lower than 2. The dye complexes no other metal ions at such an acidic media, making TazoC-PADs highly selective to Pd(II) detection. Besides, at higher pH values, other cations, for example, Cu(II) and Ni(II), can interact with TazoC through the formation of stable and pink-magenta-colored complexes; however, it is possible to quantify Pd(II) in the presence of other cations using a multivariate approach. To this end, UV-vis spectra of the TazoC-PADs after equilibration with the metal ions solutions were registered in the 300-800 nm wavelength range. By applying Partial Least Square regression (PLS), the whole UV-vis spectra of the TazoC-PADs were related to the Pd(II) concentrations both when present alone in solution and also in the presence of Cu(II) and Ni(II). Tailored PLS models obtained with matrix-matched standard solutions correctly predicted Pd(II) concentrations in unknown samples and tap water spiked with the metal cation, making the method promising for quick and economical sensing of Pd(II).
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Affiliation(s)
- Giancarla Alberti
- Department of Chemistry, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy; (L.R.M.); (R.B.)
| | - Lisa Rita Magnaghi
- Department of Chemistry, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy; (L.R.M.); (R.B.)
- Unità di Ricerca di Pavia, Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Via G. Giusti 9, 50121 Firenze, Italy
| | - Marzia Iurato
- Department of Chemistry, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy; (L.R.M.); (R.B.)
| | - Camilla Zanoni
- Department of Chemistry, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy; (L.R.M.); (R.B.)
| | - Raffaela Biesuz
- Department of Chemistry, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy; (L.R.M.); (R.B.)
- Unità di Ricerca di Pavia, Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Via G. Giusti 9, 50121 Firenze, Italy
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5
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Fazal M, Ali I, Ahmed F, Khalid S, Farghaly TA, Althagafi II, Khan I, Ali M, Ateeq M, Shah MR. A Biologically Compatible Colorimetric Sensor for the Selective Recognition of Cu
2+
Ions in Biological Matrices. ChemistrySelect 2022. [DOI: 10.1002/slct.202202913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Mahmood Fazal
- Department of Chemistry University of Malakand Chakdara Dir (L) Khyber Pakhtunkhwa 18300 Pakistan
| | - Imdad Ali
- HEJ Research institute of chemistry International center for chemical and biological sciences (ICCBS) University of Karachi 75270 Karachi Pakistan
| | - Farid Ahmed
- HEJ Research institute of chemistry International center for chemical and biological sciences (ICCBS) University of Karachi 75270 Karachi Pakistan
| | - Shumaila Khalid
- Dr. Panjwani Center for Molecular Medicine and Drug Research ICCBS University of Karachi 75270 Karachi Pakistan
| | - Thoraya A. Farghaly
- Department of chemistry. Faculty of Science Cairo University Giza Egypt
- Department of chemistry Faculty of Applied Science Umm Al_Qura University Makkah Almukkaramah Saudi Arabia
| | - Ismail I. Althagafi
- Department of chemistry Faculty of Applied Science Umm Al_Qura University Makkah Almukkaramah Saudi Arabia
| | - Irfan Khan
- Dr. Panjwani Center for Molecular Medicine and Drug Research ICCBS University of Karachi 75270 Karachi Pakistan
| | - Mumtaz Ali
- Department of Chemistry University of Malakand Chakdara Dir (L) Khyber Pakhtunkhwa 18300 Pakistan
| | - Muhammad Ateeq
- Department of Chemistry Abdul Wali Khan University Mardan 23200 Pakistan
| | - Muhammad Raza Shah
- HEJ Research institute of chemistry International center for chemical and biological sciences (ICCBS) University of Karachi 75270 Karachi Pakistan
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6
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Chopra T, Sasan S, Devi L, Parkesh R, Kapoor KK. A comprehensive review on recent advances in copper sensors. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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7
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Duan N, Yang S. Research Progress on Multifunctional Fluorescent Probes for Biological Imaging, Food and Environmental Detection. Crit Rev Anal Chem 2022; 54:775-817. [PMID: 35849642 DOI: 10.1080/10408347.2022.2098670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
There has been rapid progress in the development of fast, sensitive, cheap and low-cytotoxicity micro-molecule fluorescent probes for application in various fields, including disease diagnosis, food safety and environmental safety. As an analytical tool, dual-function fluorescent probes with dual-emission responses have attracted considerable attention due to their cost-effectiveness and efficiency over single-function sensors. This review primarily describes research progress on multifunctional probes in terms of the reaction type and coordination type, as well as the general design principles of probes. The analytes include reactive oxygen species (ROS), reactive sulfur species (RSS), harmful cations and anions, etc. Multifunctional probes for food, medical and environmental applications are listed for future research. To improve the development of rapid detection methods, trends and strategies in the development of multifunctional fluorescent probes are also discussed.
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Affiliation(s)
- Ning Duan
- Beijing Key laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, PR China
| | - Shaoxiang Yang
- Beijing Key laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, PR China
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8
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Wang L, Zhu WY, Zhang X. Selective and sensitive fluorescence detection of Pd (Ⅱ) in 100% water and imaging application in living cells. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1016/j.cjac.2022.100155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Qu Y, Li D, Liu J, Du F, Tan X, Zhou Y, Liu S, Xu W. Magnolia denudata leaf-derived near-infrared carbon dots as fluorescent nanoprobes for palladium(Ⅱ) detection and cell imaging. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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10
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Gauthama B, Narayana B, Sarojini B, Kodlady S, Sangappa Y, Kudva AK, Raghu S. A versatile rhodamine B-derived fluorescent probe for selective copper(II) sensing. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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11
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Dual-response fluorescence sensor for detecting Cu2+ and Pd2+ based on bis-tetraphenylimidazole Schiff-base. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Kumar A, Virender, Mohan B, Solovev AA, Saini M, Kumar Sharma H. Development of 2-Hydroxy-Naphthaldehyde Functionalized Schiff Base Chemosensor for Spectroscopic and Colorimetric Detection of Cu2+ and Pd2+ ions. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Liu K, Wei Y, Xu J, Qiu L, Hu S, Wan J, Feng J. A poly(carbazole‐
alt
‐fluorene) π‐conjugated polymer bearing thiophenyl benzimidazole: synthesis, characterization and fluorescence recognition of metal ions and cysteine. POLYM INT 2021. [DOI: 10.1002/pi.6257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Kuan Liu
- College of Science, Sichuan Agricultural University Ya'an China
| | - Yuhan Wei
- College of Science, Sichuan Agricultural University Ya'an China
| | - Jinyao Xu
- College of Science, Sichuan Agricultural University Ya'an China
| | - Lingfei Qiu
- College of Science, Sichuan Agricultural University Ya'an China
| | - Shaping Hu
- College of Science, Sichuan Agricultural University Ya'an China
| | - Jiayi Wan
- College of Science, Sichuan Agricultural University Ya'an China
| | - Juhua Feng
- College of Science, Sichuan Agricultural University Ya'an China
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14
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A highly sensitive fluorogenic “turn-on” chemosensor for the recognition of Cd2+ based on a hybrid purine-quinoline Schiff base. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132123] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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15
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Wang L, Zheng XY, Zhang X, Zhu ZJ. A quinoline-based fluorescent chemosensor for palladium ion (Pd 2+)-selective detection in aqueous solution. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 249:119283. [PMID: 33348096 DOI: 10.1016/j.saa.2020.119283] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/22/2020] [Accepted: 11/23/2020] [Indexed: 06/12/2023]
Abstract
Quinoline-based fluorescent chemosensors have been extensively developed for various metal cations, but it was still rare for Pd2+-selective detection. In this work, a novel quinoline-benzimidazole conjugate containing one carboxylic acid group (QBM) was designed, and the QBM displayed highly selective fluorescence quenching response towards Pd2+ over other metal cations in aqueous solution. The fluorescence titration revealed a good linear relationship between the fluorescence intensity and the Pd2+ concentration in the range of 0.5-10 μmol L-1, with the detection limit of 0.26 μmol L-1 (S/N = 3). Fluorescence detection of Pd2+ in practical water sample was also successfully achieved.
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Affiliation(s)
- Lei Wang
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China
| | - Xuan-Yu Zheng
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China
| | - Xuan Zhang
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China.
| | - Zhi-Jia Zhu
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China
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16
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Xu H, Chen W, Ju L, Lu H. A purine based fluorescent chemosensor for the selective and sole detection of Al 3+ and its practical applications in test strips and bio-imaging. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 247:119074. [PMID: 33120119 DOI: 10.1016/j.saa.2020.119074] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/08/2020] [Accepted: 10/09/2020] [Indexed: 06/11/2023]
Abstract
A novel purine Schiff base fluorescent probe (WYW), (E)-4-methyl-2-((2-(9-(naphthalen-1-yl)-8-(thiophen-2-yl)-9H-purin-6-yl)hydrazono)methyl)phenol, was designed and prepared as an excellent reversible fluorescent chemosensor for monitoring Al3+. The fluorogenic "turn-on" sensor WYW exhibited high selectivity towards Al3+ over other coexistent metal ions, accompanying with an obvious visual color change in DMSO/H2O (9/1, v/v, pH = 7.4) media. The enhancement fluorescence of WYW could be attributed to the inhibition of PET and ESIPT process induced by Al3+. Notably, the WYW-Al3+ complex exhibited a fluorescence "turn-off" response towards F- with exceptional selectivity via the displacement approach. The detection limit of WYW for Al3+ was calculated to be as low as 82 nM. The formation of complex WYW-Al3+ (1:1 stoichiometry) was confirmed by Job's methods and further verified by density functional theory (DFT) calculations. Furthermore, the probe WYW with low cytotoxicity and excellent membrane-permeable property has also been successfully applied for detecting low concertation Al3+ in living HeLa cells.
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Affiliation(s)
- Haiyan Xu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China.
| | - Wei Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China
| | - Lixin Ju
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China
| | - Hongfei Lu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China.
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17
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Zhong K, Zhou L, Chen L, Tang L, Gao X, Liu X, Pang X, Yan X. Synthesis of 2-(3-Cyanofuran-2(5 H)-ylidene)malononitrile Derivative and Its Recognition for Pd 2+. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202008047] [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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18
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Jovaisaite J, Cīrule D, Jeminejs A, Novosjolova I, Turks M, Baronas P, Komskis R, Tumkevicius S, Jonusauskas G, Jursenas S. Proof of principle of a purine D-A-D' ligand based ratiometric chemical sensor harnessing complexation induced intermolecular PET. Phys Chem Chem Phys 2020; 22:26502-26508. [PMID: 33185211 DOI: 10.1039/d0cp04091f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A comprehensive photophysical study of a series of purines, doubly decorated at C2 and C6 positions with identical fragments ranging from electron acceptor to donor groups of different strengths, is presented. The asymmetry of substitutions creates a unique molecular D-A-D' structure possessing two independent electronic charge transfer (CT) systems attributed to each fragment and exhibiting dual-band fluorescence. Moreover, the inherent property of coordination of metal ions by purines was enriched due to a presence of nearby triazoles used as spacers for donor or acceptor fragments. New molecules present a bidentate coordination mode, which makes the assembly of several ligands with one metal cation possible. This property was exploited to create a new concept of a ratiometric chemical fluorescence sensor involving the photoinduced electron transfer between branches of different ligands as a mechanism of fluorescence modulation.
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Affiliation(s)
- Justina Jovaisaite
- Institute of Photonics and Nanotechnology, Faculty of Physics, Vilnius University, Sauletekis Av. 3, LT-10222 Vilnius, Lithuania.
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19
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Xu H, Chen W, Zhang W, Ju L, Lu H. A selective purine-based fluorescent chemosensor for the “naked-eye” detection of zinc ions (Zn2+): applications in live cell imaging and test strips. NEW J CHEM 2020. [DOI: 10.1039/d0nj02687e] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, a novel purine based probe PTAHN was successfully designed and synthesized. PTAHN displayed high selectivity towards Zn2+via turn-on fluorescence. What's more, PTAHN can be proficiently employed for imaging Zn2+ in living cells.
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Affiliation(s)
- Haiyan Xu
- School of Environmental and Chemical Engineering
- Jiangsu University of Science and Technology
- Zhenjiang
- China
| | - Wei Chen
- School of Environmental and Chemical Engineering
- Jiangsu University of Science and Technology
- Zhenjiang
- China
| | - Weixia Zhang
- School of Environmental and Chemical Engineering
- Jiangsu University of Science and Technology
- Zhenjiang
- China
| | - Lixin Ju
- School of Environmental and Chemical Engineering
- Jiangsu University of Science and Technology
- Zhenjiang
- China
| | - Hongfei Lu
- School of Environmental and Chemical Engineering
- Jiangsu University of Science and Technology
- Zhenjiang
- China
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