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Rabha M, Sen B, Sheet SK, Aguan K, Khatua S. Cyclometalated iridium(III) complex of a 1,2,3-triazole-based ligand for highly selective sensing of pyrophosphate ion. Dalton Trans 2022; 51:11372-11380. [PMID: 35818901 DOI: 10.1039/d2dt01634f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new cyclometalated Ir(III) complex of a methylene-bridged benzimidazole-substituted 1,2,3-triazole methanol ligand has been synthesized for the photoluminescent detection of pyrophosphate (H2P2O72-) anions. The solution structure of 1[PF6] was fully characterized by 1D (1H, 13C) and 2D (1H-1H COSY, 1H-13C HSQC, and 1H-13C HMBC) NMR spectroscopy, and ESI-HRMS. The 1[PF6] acted as a highly selective luminescent sensor for H2P2O72- in CH3CN over other competitive ions, including H2PO4-, ATP, ADP and AMP. The PL titration of 1[PF6] with H2P2O72- in CH3CN furnished the association constant Ka = 8.6 × 107 M-1 and a low detection limit of ∼127 nM. The structure of the analyte interacting ligand renders the Ir(III) complex-based probe highly selective for H2P2O72- ions. The PL enhancement with H2P2O72- is due to the hydrogen bonding interaction of H2P2O72- with the triazole C-H, imidazole N-H, methylene hydrogen and hydroxyl groups of the ligand that has been supported by 1H NMR titration. Further, the PL enhancement of 1·H2P2O72- adducts was supported by triplet-state TDDFT calculations. In 1·H2P2O72-, the 3MLCT-3MC energy gap is increased, and the 1·H2P2O72- emits efficiently from the 3MLCT and 3ILCT excited states. Finally, a cytotoxicity study and live-cell imaging were performed. The probe showed low cytotoxicity against HeLa cells and was suitable for intracellular pyrophosphate imaging.
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Affiliation(s)
- Monosh Rabha
- Centre for Advanced Studies, Department of Chemistry, North-Eastern Hill University, Shillong, Meghalaya 793022, India.
| | - Bhaskar Sen
- Centre for Advanced Studies, Department of Chemistry, North-Eastern Hill University, Shillong, Meghalaya 793022, India.
| | - Sanjoy Kumar Sheet
- Centre for Advanced Studies, Department of Chemistry, North-Eastern Hill University, Shillong, Meghalaya 793022, India.
| | - Kripamoy Aguan
- Department of Biotechnology and Bioinformatics, North-Eastern Hill University, Shillong, Meghalaya 793022, India
| | - Snehadrinarayan Khatua
- Centre for Advanced Studies, Department of Chemistry, North-Eastern Hill University, Shillong, Meghalaya 793022, India.
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Wu M, Zhang Z, Yong J, Schenk PM, Tian D, Xu ZP, Zhang R. Determination and Imaging of Small Biomolecules and Ions Using Ruthenium(II) Complex-Based Chemosensors. Top Curr Chem (Cham) 2022; 380:29. [PMID: 35695976 PMCID: PMC9192387 DOI: 10.1007/s41061-022-00392-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 05/27/2022] [Indexed: 01/13/2023]
Abstract
Luminescence chemosensors are one of the most useful tools for the determination and imaging of small biomolecules and ions in situ in real time. Based on the unique photo-physical/-chemical properties of ruthenium(II) (Ru(II)) complexes, the development of Ru(II) complex-based chemosensors has attracted increasing attention in recent years, and thus many Ru(II) complexes have been designed and synthesized for the detection of ions and small biomolecules in biological and environmental samples. In this work, we summarize the research advances in the development of Ru(II) complex-based chemosensors for the determination of ions and small biomolecules, including anions, metal ions, reactive biomolecules and amino acids, with a particular focus on binding/reaction-based chemosensors for the investigation of intracellular analytes’ evolution through luminescence analysis and imaging. The advances, challenges and future research directions in the development of Ru(II) complex-based chemosensors are also discussed.
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Affiliation(s)
- Miaomiao Wu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Zexi Zhang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Jiaxi Yong
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Peer M Schenk
- School of Agriculture and Food Sciences, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Dihua Tian
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Zhi Ping Xu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Run Zhang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia.
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Su Y, Ye L, Gu J, Zhao L, Zhou Y, Peng J. Sensing and Imaging of PPi in vivo using Lanthanide-based Second Near-infrared Luminescent Probes. J Mater Chem B 2022; 10:1055-1062. [DOI: 10.1039/d1tb02579a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
pathological changes. Here, we reported a luminescent nanoprobe for the detection and imaging of PPi in vivo based on a lanthanide nanoparticle with luminescence at the second near-infrared window modified...
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Wang S, Gong L, El Fakhri G, Wang J. Efficient synthesis of 6,6′-diamido-2,2′-dipicolylamine ligands for potential phosphate anion sensing. NEW J CHEM 2021; 45:16833-16840. [DOI: 10.1039/d1nj03030b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Through retrosynthetic analysis, functionalized 6,6′-diamido-2,2′-dipicolylamines (DA-DPAs) have been efficiently synthesized, which may accelerate the development of selective probes towards phosphate anions.
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Affiliation(s)
- Shuai Wang
- Gordon Center for Medical Imaging, Massachusetts General Hospital and Harvard Medical School, 125 Nashua Street, Suite 660, Boston, Massachusetts 02114, USA
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Lichong Gong
- Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth Street, Suite 2301, Charlestown, Massachusetts 02129, USA
| | - Georges El Fakhri
- Gordon Center for Medical Imaging, Massachusetts General Hospital and Harvard Medical School, 125 Nashua Street, Suite 660, Boston, Massachusetts 02114, USA
| | - Junfeng Wang
- Gordon Center for Medical Imaging, Massachusetts General Hospital and Harvard Medical School, 125 Nashua Street, Suite 660, Boston, Massachusetts 02114, USA
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Roy SG, Mondal S, Ghosh K. Anthracene labeled poly(pyridine methacrylamide) as a polymer-based chemosensor for detection of pyrophosphate (P 2O 74-) in semi-aqueous media. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:5699-5708. [PMID: 33210678 DOI: 10.1039/d0ay01540g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
To develop fluorophore-labelled pyridinium-based macromolecular architectures for fluorometric and colorimetric detection of anions, two polymers P1 and P2 are synthesized. Linear polymer P1 and cross-linked polymer P2, prepared from N-methacryloyl-3-aminopyridine monomers via free radical polymerization followed by quaternization of the pyridine ring nitrogen with anthracene as a fluorescent marker, have been successfully employed in anion sensing. P1 exhibits excellent sensing of HPPi in aqueous DMSO. In addition to the enhancement of fluorescence emission of the anthracene moiety, P1 exclusively shows excimer/exciplex emission in the presence of HPPi over other anions and exhibits selectivity to HPPi with a detection limit of about 1.63 ppm. Cross-linked P2 exhibits naked-eye detection of PPi/HPPi over other anions studied via indicator displacement assay (IDA).
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Affiliation(s)
- Saswati Ghosh Roy
- Department of Chemistry, University of Kalyani, Kalyani-741235, India.
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Pal S, Ghosh TK, Ghosh R, Mondal S, Ghosh P. Recent advances in recognition, sensing and extraction of phosphates: 2015 onwards. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2019.213128] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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