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Wu M, Song J, Zhou YL, Chen HH, Duan BF, Jin LX, Ren CQ, Lu JF. A Series of Lanthanide Coordination Polymers as Luminescent Sensors for Selective Detection of Inorganic Ions and Nitrobenzene. Molecules 2024; 29:3438. [PMID: 39065015 PMCID: PMC11279550 DOI: 10.3390/molecules29143438] [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: 06/18/2024] [Revised: 07/14/2024] [Accepted: 07/19/2024] [Indexed: 07/28/2024] Open
Abstract
Seven new lanthanide coordination polymers, namely [Ln(cpt)3H2O)]n(Ln = La (1), Pr (2), Sm (3), Eu (4), Gd (5), Dy (6), and Er (7)), which were synthesized under hydrothermal conditions using 4'-(4-(4-carboxyphenyloxy)phenyl)-4,2':6',4'-tripyridine (Hcpt) as the ligand. The crystal structures of these seven complexes were determined using single-crystal X-ray diffraction, and they were found to be isostructural, crystallizing in the triclinic P1- space group. The Ln(III) ions were nine-coordinated with tricapped trigonal prism coordination geometry. The Ln(III) cations were coordinated by carboxylic and pyridine groups from (cpt)- ligands, forming one-dimensional ring-chain structures. Furthermore, the luminescent properties of complexes 1-7 were investigated using fluorescent spectra in the solid state. The fluorescence sensing experiments demonstrated that complex 4 exhibits high selectivity and sensitivity for detecting Co2+, Cu2+ ions, and nitrobenzene. Moreover, complex 3 shows good capability for detecting Cu2+ ions and nitrobenzene. Additionally, the sensing mechanism was also thoroughly examined through theoretical calculations.
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Affiliation(s)
- Miao Wu
- Shaanxi Key Laboratory of Catalysis, College of Chemical & Environment Science, Shaanxi University of Technology, Hanzhong 723001, China; (M.W.); (Y.-L.Z.); (H.-H.C.); (L.-X.J.); (C.-Q.R.); (J.-F.L.)
| | - Juan Song
- Shaanxi Key Laboratory of Catalysis, College of Chemical & Environment Science, Shaanxi University of Technology, Hanzhong 723001, China; (M.W.); (Y.-L.Z.); (H.-H.C.); (L.-X.J.); (C.-Q.R.); (J.-F.L.)
| | - Yun-Long Zhou
- Shaanxi Key Laboratory of Catalysis, College of Chemical & Environment Science, Shaanxi University of Technology, Hanzhong 723001, China; (M.W.); (Y.-L.Z.); (H.-H.C.); (L.-X.J.); (C.-Q.R.); (J.-F.L.)
| | - Hui-Hui Chen
- Shaanxi Key Laboratory of Catalysis, College of Chemical & Environment Science, Shaanxi University of Technology, Hanzhong 723001, China; (M.W.); (Y.-L.Z.); (H.-H.C.); (L.-X.J.); (C.-Q.R.); (J.-F.L.)
| | - Bo-Feng Duan
- Trine Engineering Institute, Shaanxi University of Technology, Hanzhong 723001, China;
| | - Ling-Xia Jin
- Shaanxi Key Laboratory of Catalysis, College of Chemical & Environment Science, Shaanxi University of Technology, Hanzhong 723001, China; (M.W.); (Y.-L.Z.); (H.-H.C.); (L.-X.J.); (C.-Q.R.); (J.-F.L.)
| | - Chuan-Qing Ren
- Shaanxi Key Laboratory of Catalysis, College of Chemical & Environment Science, Shaanxi University of Technology, Hanzhong 723001, China; (M.W.); (Y.-L.Z.); (H.-H.C.); (L.-X.J.); (C.-Q.R.); (J.-F.L.)
| | - Jiu-Fu Lu
- Shaanxi Key Laboratory of Catalysis, College of Chemical & Environment Science, Shaanxi University of Technology, Hanzhong 723001, China; (M.W.); (Y.-L.Z.); (H.-H.C.); (L.-X.J.); (C.-Q.R.); (J.-F.L.)
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2
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Farahmand Kateshali A, Soleimannejad J, Janczak J. Ultrasound-assisted synthesis of a Eu 3+-functionalized Zn II coordination polymer as a fluorescent dual detection probe for highly sensitive recognition of Hg II and L-Cys. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2024; 80:208-218. [PMID: 38856649 DOI: 10.1107/s2052520624003019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 04/07/2024] [Indexed: 06/11/2024]
Abstract
A new ZnII coordination polymer (CP) based on 2,3-pyrazine dicarboxylic acid (H2pzdc) and 4,4'-bipyridine (bpy) (ZCP) was synthesized using a facile slow evaporation method. Single-crystal X-ray diffraction revealed that ZCP is a two-dimensional porous CP, [Zn2(pzdc)2(bpy)(H2O)2]n, with van der Waals forces as the dominant interaction within its layers forming a 63 network. Employing energetic ultrasound irradiation, nanoscale ZCP (nZCP) was successfully synthesized and Eu3+ ions were incorporated within its host lattice (Eu@nZCP). The resulting platform exhibits superior fluorescence characteristics and demonstrates notable optical durability. Therefore, it was used as a dual detection fluorescent sensing platform for the detection of mercury and L-cysteine (L-Cys) in aqueous media through a turn-off/on strategy. In the turn-off process, the fluorescence emission of Eu@nZCP progressively quenches by the addition of HgII via a photo-induced electron transfer (PET) mechanism. The fluorescence of Eu@nZCP is quenched to establish a low fluorescence background through the incorporation of HgII. This devised turn-on fluorescent system is suitable for the recognition of L-Cys (based on the strong affinity of L-Cys to the HgII ion) through a quencher detachment mechanism. This method attained a relatively wide linear range, spanning from 0.001 to 25 µM, with the low detection limit of 5 nM for the sensing of HgII. Also, the corresponding limit of detection (LOD) for L-Cys is 8 nM in a relatively wide linear range, spanning from 0.001 to 40 µM.
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Affiliation(s)
| | - Janet Soleimannejad
- School of Chemistry, College of Science, University of Tehran, P.O. Box 14155-6455, Tehran, Iran
| | - Jan Janczak
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-950 Wrocław, Poland
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3
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Otero-Fuentes GM, Sánchez-Mendieta V, Sánchez-Ruiz A, Morales-Luckie RA, Martínez-Otero D, Jaramillo-García J, León-Gómez JP, Dorazco-González A. Highly Selective Ratiometric Sensors for Pb 2+ Based on Luminescent Zn(II)-Coordination Polymers with Thiophenedicarboxylate. Crystal Structures and Spectroscopic Studies. J Fluoresc 2024:10.1007/s10895-024-03754-1. [PMID: 38805133 DOI: 10.1007/s10895-024-03754-1] [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: 03/09/2024] [Accepted: 04/29/2024] [Indexed: 05/29/2024]
Abstract
The development of luminescent coordination polymers for the selective sensing of Pb2+ in water constitutes an active area of research that impacts analytical, environmental, and inorganic chemistry. Herein, two novel water-stable 2D Zn-coordination polymers {[Zn2(H2O)2(tdc)2(bpy)]·(H2O)}n 1 and [Zn(tdc)(tmb)]n 2 (tdc = thiophenedicarboxylate; bpy = 4,4'-bipyridine and tmb = 4,4'-trimethylenebipyridine) were synthesized, structurally determined by single crystal X-ray diffraction, and studied in-depth as luminescent sensors for a series of cations (Ca2+, Mg2+, Mn2+, Fe2+, Co2+, Ni2+, Cu2+, Zn2+ Cd2+, Hg2+ and Pb2+) in 20% aqueous ethanol. These Zn-polymers possess photostability in 20% aqueous ethanol with a strong emission at 410 upon excitation at 330 nm and quantum yields of around Φ = 0.09. Under these conditions, Pb+2 can be efficiently sensed with polymer 2 through a fluorescent ratiometric response with selectivity over common interfering metal ions such as Cu2+, Cd2+ and Hg2+ in the micromolar concentration range (detection limit = 1.78 ± 10 μM). Such selectivity/affinity of Pb2+ over Hg2+ for luminescent chemosensors is still rare. On the basis of spectroscopic tools (1H NMR, far ATR-IR, PXRD), the X-ray crystal structure of 2, and Scanning Electron Microscopy with Energy-Dispersive X-ray Spectroscopic analysis, the ratiometric fluorescent response is proposed via an efficient metal-ion exchange driven through interactions between thiophenedicarboxylate rings and Pb2+ ions. The use of flexible luminescent Zn-coordination polymers as sensors for selective and direct detection of Pb2+ in aqueous media has been unexplored until now.
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Affiliation(s)
- Georgina M Otero-Fuentes
- Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón y Paseo Tollocan, Toluca, Estado de México, 50120, México
| | - Victor Sánchez-Mendieta
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca‑Atlacomulco Km. 14.5, San Cayetano, Toluca, Estado de México, 50200, México.
| | - Alejandro Sánchez-Ruiz
- Institute of Chemistry, National Autonomous University of Mexico, Circuito Exterior, Ciudad Universitaria, Ciudad de México, 04510, México
| | - Raúl A Morales-Luckie
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca‑Atlacomulco Km. 14.5, San Cayetano, Toluca, Estado de México, 50200, México
| | - Diego Martínez-Otero
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca‑Atlacomulco Km. 14.5, San Cayetano, Toluca, Estado de México, 50200, México
| | - Jonathan Jaramillo-García
- Tecnológico Nacional de México, Campus Zitácuaro (ITZ), Av. Tecnológico 186, Colonia Manzanillos, 61534, H. Zitácuaro, Michoacán, México
| | - Juan Pablo León-Gómez
- Institute of Chemistry, National Autonomous University of Mexico, Circuito Exterior, Ciudad Universitaria, Ciudad de México, 04510, México
| | - Alejandro Dorazco-González
- Institute of Chemistry, National Autonomous University of Mexico, Circuito Exterior, Ciudad Universitaria, Ciudad de México, 04510, México.
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4
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Gong Y, Fu Y, Lou D. A Eu-MOF-Based Fluorescent Sensing Probe for the Detection of Tryptophan and Cu 2+ in Aqueous Solutions. J Fluoresc 2024:10.1007/s10895-024-03633-9. [PMID: 38416282 DOI: 10.1007/s10895-024-03633-9] [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: 12/29/2023] [Accepted: 02/22/2024] [Indexed: 02/29/2024]
Abstract
Abnormal tryptophan (Trp) metabolism can be used as an important indicator of chronic hepatitis, paranoia, Parkinson's disease and other diseases. Deficiency or excessive accumulation of Cu2+ can cause diseases such as Wilson's disease and Alzheimer's disease. Eu-based metal-organic framework (Eu-MOF) was successfully prepared for fluorescence sensing of Trp and Cu2+ in an aqueous solution (pH = 7.4). Eu-MOF showed high selectivity and sensitivity for Trp and Cu2+ with detection limits of 0.22 µM and 0.09 µM and Ksv of 6.17 × 103 M- 1 and 2.37 × 104 M- 1 respectively. Trp and Cu2+ had overlapped UV absorption spectra with that of Eu-MOF and competed for the excitation light source. Trp also attenuated the antennae effect of organic ligands on Eu-MOF, thus quenching the red fluorescence of Eu-MOF. This study provides insights into the application of MOFs in bioanalysis and diagnostics.
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Affiliation(s)
- Yafei Gong
- Department of Analytical Chemistry, Jilin Institute of Chemical Technology, Jilin, 132022, P.R. China
| | - Yan Fu
- Department of Analytical Chemistry, Jilin Institute of Chemical Technology, Jilin, 132022, P.R. China
| | - Dawei Lou
- Department of Analytical Chemistry, Jilin Institute of Chemical Technology, Jilin, 132022, P.R. China.
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5
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Wei W, Wang A, Lu L, Yuan C, Feng S, Englert U, Ma S. Luminescent lanthanide complexes based on 4,5-di(3,5-dicarboxylphenoxy)phthalic acid as enhanced fluorescence probes for highly selective detection of lead(II) ions in water. Dalton Trans 2024; 53:3825-3835. [PMID: 38305671 DOI: 10.1039/d3dt04118b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Six novel lanthanide complexes ([Nd2(L)(H2O)6]n·4.58n(H2O) (1), [Ln(H3L)(H2O)]n·0.5n(H2O), Ln = Sm (2), Eu (3), Gd (4), Tb (5), Eu0.18Gd0.62Tb0.20 (6)) have been hydrothermally synthesized based on the ligand 4,5-di(3,5-dicarboxylphenoxy)phthalic acid (H6L). Single crystal X-ray diffraction reveals that complexes 1-6 are 2D structures, where 2-6 are isomorphic. Complexes 3 and 5 exhibit the characteristic fluorescence of Eu(III) and Tb(III) ions respectively, while complex 4 shows blue-green light emission based on the ligand. In particular, the ternary Eu/Gd/Tb complex 6 shows white light emission with a CIE (Commission International del'Eclairage) chromaticity coordinate of (0.330, 0.339) and hence close to pure white light emission. Moreover, complexes 3 and 5 display specific fluorescence-enhanced detection performance for Pb2+ ions: The interaction between Pb2+ ions and the ligand enhances the charge transfer efficiency between the ligand and the Eu(III) and Tb(III) ions and thus leads to fluorescence enhancement of complexes 3 and 5. More importantly, complex 3 exhibits the lowest detection limit of 4.72 nM for Pb2+ ions among the existing complex fluorescent probes. In addition, both complexes 3 and 5 show good performance for recycling and for the detection of Pb2+ in real water samples.
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Affiliation(s)
- Wenwen Wei
- Institute of Molecular Science, Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Shanxi University, Taiyuan, Shanxi 030006, People's Republic of China.
| | - Ai Wang
- Institute of Molecular Science, Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Shanxi University, Taiyuan, Shanxi 030006, People's Republic of China.
| | - Liping Lu
- Institute of Molecular Science, Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Shanxi University, Taiyuan, Shanxi 030006, People's Republic of China.
| | - Caixia Yuan
- Institute of Molecular Science, Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Shanxi University, Taiyuan, Shanxi 030006, People's Republic of China.
| | - Sisi Feng
- Institute of Molecular Science, Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Shanxi University, Taiyuan, Shanxi 030006, People's Republic of China.
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Shanxi University, Taiyuan, Shanxi 030006, People's Republic of China
| | - Ulli Englert
- Institute of Molecular Science, Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Shanxi University, Taiyuan, Shanxi 030006, People's Republic of China.
| | - Shengqian Ma
- Department of Chemistry, University of North Texas CHEM 305D, 1508 W Mulberry St, Denton, TX, 76201, USA.
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6
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Nath A, Gaikwad DV, Mandal S. Mechanistic insight into Pb 2+ and Hg 2+ ion sensing using cobalt-based coordination polymer in aqueous phase. Dalton Trans 2023; 52:4303-4308. [PMID: 36947407 DOI: 10.1039/d3dt00479a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
Emissive inorganic-organic hybrid materials open up a new prospect of fast and efficient heavy metal ion sensing in an aqueous medium. Here, we demonstrate highly sensitive lead(II) ion detection attributed to excited-state host-guest interaction, where mercury(II) shows lesser quenching efficiency due to both ground- and excited-state interaction.
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Affiliation(s)
- Akashdeep Nath
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram, Kerala-695551, India.
| | - Diti Vikram Gaikwad
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram, Kerala-695551, India.
| | - Sukhendu Mandal
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram, Kerala-695551, India.
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7
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Somnath, Ahmad M, Siddiqui KA. Ratiometric luminescent sensing of a biomarker for sugar consumption in an aqueous medium using a Cu(II) coordination polymer. Dalton Trans 2023; 52:3643-3660. [PMID: 36867431 DOI: 10.1039/d3dt00022b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
An innovative [Cu(Hadp)2(Bimb)]n (KA@CP-S3) coordination polymer expands its dimensionality from a 1D chain to a 2D network. The topological analysis reveals that KA@CP-S3 has 2-connected uninodal 2D 2C1 topology. KA@CP-S3 has capable luminescent sensing for volatile organic compounds (VOCs), nitroaromatics, heavy metal ions, anions, disposed antibiotics (nitrofurantoin and tetracycline) and biomarkers. Intriguingly, KA@CP-S3 exhibits outstanding selective quenching of about 90.7% and 90.5% for the 125 mg dl-1 and 150 mg dl-1 strengths of sucrose, respectively, in aqueous solution along with other ranges in between. The photocatalytic degradation efficiency of KA@CP-S3 for the potentially harmful organic dye Bromophenol Blue displays 95.4%, which is the highest among the 13 dyes that were evaluated.
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Affiliation(s)
- Somnath
- Department of Chemistry, National Institute of Technology Raipur, G E Road, Raipur-492010, Chhattisgarh, India.
| | - Musheer Ahmad
- Department of Applied Chemistry, Faculty of Engineering and Technology, ZHCET, Aligarh Muslim University, Aligarh, UP, 202002, India
| | - Kafeel Ahmad Siddiqui
- Department of Chemistry, National Institute of Technology Raipur, G E Road, Raipur-492010, Chhattisgarh, India.
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Luo J, Liu BS, Zhang YC, Wang BK, Guo BB, She L, Chen TH. A new fluorescent probe constructed by europium(III)-organic framework (Eu-MOF) for detecting Cu2+ selectively and sensitively. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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9
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Sahoo S, Mondal S, Sarma D. Luminescent Lanthanide Metal Organic Frameworks (LnMOFs): A Versatile Platform towards Organomolecule Sensing. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214707] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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10
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Gao G, Liu W, Liu G, Zhu M, Zhang Y, Wu S, Gao E. A Water‐Stable Tb(III) Metal‐Organic Framework with Multiple Fluorescent Centers for Efficient Self‐Calibration Sensing Pesticides. ChemistrySelect 2021. [DOI: 10.1002/slct.202102575] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Guoxu Gao
- International Key Laboratory of Liaoning Inorganic Molecule-Based Chemical and Department of Coordination Chemistry Shenyang University of Chemical Technology Shenyang 110142 P.R. China
| | - Wei Liu
- International Key Laboratory of Liaoning Inorganic Molecule-Based Chemical and Department of Coordination Chemistry Shenyang University of Chemical Technology Shenyang 110142 P.R. China
| | - Gongchi Liu
- International Key Laboratory of Liaoning Inorganic Molecule-Based Chemical and Department of Coordination Chemistry Shenyang University of Chemical Technology Shenyang 110142 P.R. China
| | - Mingchang Zhu
- International Key Laboratory of Liaoning Inorganic Molecule-Based Chemical and Department of Coordination Chemistry Shenyang University of Chemical Technology Shenyang 110142 P.R. China
| | - Ying Zhang
- International Key Laboratory of Liaoning Inorganic Molecule-Based Chemical and Department of Coordination Chemistry Shenyang University of Chemical Technology Shenyang 110142 P.R. China
| | - Shuangyan Wu
- International Key Laboratory of Liaoning Inorganic Molecule-Based Chemical and Department of Coordination Chemistry Shenyang University of Chemical Technology Shenyang 110142 P.R. China
| | - Enjun Gao
- International Key Laboratory of Liaoning Inorganic Molecule-Based Chemical and Department of Coordination Chemistry Shenyang University of Chemical Technology Shenyang 110142 P.R. China
- School of Chemical Engineering University of Science and Technology Liaoning Anshan 114051 P.R. China
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Wu YB, Yu Q, Cui GH, Fu L. Synthesis, crystal structures, and luminescence sensing properties of two cobalt(II) complexes containing bis(thiabendazole) moieties. TRANSIT METAL CHEM 2021. [DOI: 10.1007/s11243-021-00470-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Wang Y, Chen C, Liu H, Sun DL, Cheng WW, Xue YS. A series of coordination polymers constructed from mixed ligands for highly selective luminescence sensing of Fe3+ ions. TRANSIT METAL CHEM 2021. [DOI: 10.1007/s11243-021-00455-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Bodman SE, Butler SJ. Advances in anion binding and sensing using luminescent lanthanide complexes. Chem Sci 2021; 12:2716-2734. [PMID: 34164038 PMCID: PMC8179419 DOI: 10.1039/d0sc05419d] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 12/22/2020] [Indexed: 12/11/2022] Open
Abstract
Luminescent lanthanide complexes have been actively studied as selective anion receptors for the past two decades. Ln(iii) complexes, particularly of europium(iii) and terbium(iii), offer unique photophysical properties that are very valuable for anion sensing in biological media, including long luminescence lifetimes (milliseconds) that enable time-gating methods to eliminate background autofluorescence from biomolecules, and line-like emission spectra that allow ratiometric measurements. By careful design of the organic ligand, stable Ln(iii) complexes can be devised for rapid and reversible anion binding, providing a luminescence response that is fast and sensitive, offering the high spatial resolution required for biological imaging applications. This review focuses on recent progress in the development of Ln(iii) receptors that exhibit sufficiently high anion selectivity to be utilised in biological or environmental sensing applications. We evaluate the mechanisms of anion binding and sensing, and the strategies employed to tune anion affinity and selectivity, through variations in the structure and geometry of the ligand. We highlight examples of luminescent Ln(iii) receptors that have been utilised to detect and quantify specific anions in biological media (e.g. human serum), monitor enzyme reactions in real-time, and visualise target anions with high sensitivity in living cells.
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Affiliation(s)
- Samantha E Bodman
- Department of Chemistry, Loughborough University Epinal Way, Loughborough LE11 3TU UK
| | - Stephen J Butler
- Department of Chemistry, Loughborough University Epinal Way, Loughborough LE11 3TU UK
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Xue YS, Zhang C, Lv JQ, Chen NN, Wang J, Chen XR, Fan L. Luminescence sensing and photocatalytic activities of four Zn(ii)/Co(ii) coordination polymers based on a pyridinephenyl bifunctional ligand. CrystEngComm 2021. [DOI: 10.1039/d0ce01812k] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Four Zn(ii)/Co(ii) CPs act as bifunctional materials in the detection of Fe(iii) cation, Cr(vi) anion, and nitrofuran antibiotics and removal of methylene blue in aqueous media.
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Affiliation(s)
- Yun-Shan Xue
- School of Chemistry & Environmental Engineering
- Yancheng Teachers University
- Yancheng 224007
- China
| | - Chen Zhang
- School of Chemistry & Environmental Engineering
- Yancheng Teachers University
- Yancheng 224007
- China
| | - Jun Qing Lv
- School of Chemistry & Environmental Engineering
- Yancheng Teachers University
- Yancheng 224007
- China
| | - Ning-Ning Chen
- School of Chemistry & Environmental Engineering
- Yancheng Teachers University
- Yancheng 224007
- China
| | - Jun Wang
- School of Chemistry & Environmental Engineering
- Yancheng Teachers University
- Yancheng 224007
- China
| | - Xuan-Rong Chen
- School of Chemistry & Environmental Engineering
- Yancheng Teachers University
- Yancheng 224007
- China
| | - Liming Fan
- Department of Chemistry
- College of Science
- North University of China
- Taiyuan 030051
- China
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