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S A, B S S, Reddy MLP. Phosphorescent Iridium Molecular Materials as Chemosensors for Nitroaromatic Explosives: Recent Advances. COMMENT INORG CHEM 2022. [DOI: 10.1080/02603594.2022.2090347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Anjali S
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram-695 019, India
| | - Sasidhar B S
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram-695 019, India
| | - M L P Reddy
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram-695 019, India
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Gourlaouen C, Schweitzer B, Daniel C. Are luminescent Ru 2+ chelated complexes selective coordinative sensors for the detection of heavy cations? Phys Chem Chem Phys 2022; 24:2309-2317. [PMID: 35015003 DOI: 10.1039/d1cp04442g] [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
The ability of [Ru(bpy)2(bpym)]2+ (bpy = 2,2'-bipyridine; bpym = 2,2'-bipyrimidine) to probe specifically heavy cations has been investigated by means of density functional theory for transition metals, group 12 elements and Pb2+. On the basis of the calculated Gibbs free energies of complexation in water it is shown that all reactions are favorable with negative enthalpies except for Hg2+, with the transition metal cations forming stable bi-metallic complexes by coordination to the bpym ligand. Comparison between the optical and photophysical properties of the Ru2+ probe and those of the coordination compounds does not demonstrate a high selectivity due to very similar characteristics of the absorption and emission spectra. Whereas by complexation the lowest metal-to-ligand-charge-transfer (MLCT) shoulder of [Ru(bpy)2(bpym)]2+ at 462 nm is more or less shifted to the red as a function of the cation, the second MLCT band at 415 nm, less sensitive to the complexation, gains in intensity and is slightly blue-shifted. The visible MLCT emission of [Ru(bpy)2(bpym)]2+ at 706 nm is altered by complexation leading to near IR (800-900 nm) emission in most of the coordination compounds. Complexation to some transition metal cations (Fe, Co, Rh and Pd) generates low-lying metal-centered (MC) excited states that quench luminescence. In contrast to the conclusion of experimental findings by Kumar et al. (Chem. Commun. 2014, 50, 8488-8490), [Ru(bpy)2(bpym)]2+ cannot be proposed as a fast and selective probe for monitoring Pd2+ in aqueous media. Indeed, it does not possess the optical and photophysical characteristics necessary to discriminate Pd2+ ions over a variety of other cations.
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Affiliation(s)
- Christophe Gourlaouen
- Laboratoire de Chimie Quantique Institut de Chimie UMR 7177 CNRS-Université de Strasbourg, 4, Rue Blaise Pascal CS 90032, F-67081 Strasbourg Cedex, France.
| | - Benjamin Schweitzer
- Laboratoire de Chimie Quantique Institut de Chimie UMR 7177 CNRS-Université de Strasbourg, 4, Rue Blaise Pascal CS 90032, F-67081 Strasbourg Cedex, France.
| | - Chantal Daniel
- Laboratoire de Chimie Quantique Institut de Chimie UMR 7177 CNRS-Université de Strasbourg, 4, Rue Blaise Pascal CS 90032, F-67081 Strasbourg Cedex, France.
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Ye RR, Peng W, Chen BC, Jiang N, Chen XQ, Mao ZW, Li RT. Mitochondria-targeted artesunate conjugated cyclometalated iridium(iii) complexes as potent anti-HepG2 hepatocellular carcinoma agents. Metallomics 2021; 12:1131-1141. [PMID: 32453319 DOI: 10.1039/d0mt00060d] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Hepatocellular carcinoma (HCC) poses a serious threat to people's health worldwide. Artesunate (ART), one of the classical antimalarial drugs, has recently been shown to exert significant cytotoxicity in various cancers, but its bioavailability is low. Cyclometalated iridium(iii) complexes have emerged as a promising class of anticancer therapeutic agents. Herein, through conjugation of two of them, three novel Ir(iii)-ART conjugates, [Ir(C-N)2(bpy-ART)](PF6) (bpy = 2,2'-bipyridine, C-N = 2-phenylpyridine (ppy, Ir-ART-1), 2-(2-thienyl)pyridine (thpy, Ir-ART-2), and 2-(2,4-difluorophenyl)pyridine (dfppy, Ir-ART-3)) have been synthesized, and their potential as anti-HCC agents was evaluated. We demonstrate that Ir-ART-1-3 display higher cytotoxicity against HCC cell lines than normal liver cells, and they can especially locate to mitochondria of HepG2 cells and induce a series of mitochondria-mediated apoptosis events. Moreover, Ir-ART-1-3 can regulate the cell cycle and inhibit metastasis of HepG2 cells. Finally, in vivo antitumor evaluation also demonstrates the inhibitory activity of Ir-ART-1 on tumor growth. Taken together, these Ir(iii)-ART conjugates have the potential to become drug candidates for future anti-HCC treatments.
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Affiliation(s)
- Rui-Rong Ye
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China.
| | - Wan Peng
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China.
| | - Bi-Chun Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China.
| | - Ning Jiang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China.
| | - Xuan-Qin Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China.
| | - Zong-Wan Mao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China.
| | - Rong-Tao Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China.
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Shi H, Wang Y, Lin S, Lou J, Zhang Q. Recent development and application of cyclometalated iridium(III) complexes as chemical and biological probes. Dalton Trans 2021; 50:6410-6417. [PMID: 33900334 DOI: 10.1039/d1dt00592h] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Iridium complexes have been widely applied as molecular sensors because of their rich photophysical properties, including large Stokes shifts, long emission lifetimes, environment-sensitive emissions, and high luminescence quantum yields. In this paper, we review the recent development and application of iridium complexes as probes for ions, anions, gaseous species, organic molecules, small biomolecules, biomacromolecules, and subcellular organelles. Our outlook for iridium-based probes is also discussed.
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Affiliation(s)
- Hongdong Shi
- Graphene Composite Research Center, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, PR China.
| | - Yi Wang
- Graphene Composite Research Center, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, PR China.
| | - Simin Lin
- Graphene Composite Research Center, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, PR China.
| | - Jingxue Lou
- Graphene Composite Research Center, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, PR China.
| | - Qianling Zhang
- Graphene Composite Research Center, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, PR China.
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Babu E, Bhuvaneswari J, Rajakumar K, Sathish V, Thanasekaran P. Non-conventional photoactive transition metal complexes that mediated sensing and inhibition of amyloidogenic aggregates. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213612] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Li Y, Wu Y, Wu J, Lun W, Zeng H, Fan X. A near-infrared phosphorescent iridium(iii) complex for fast and time-resolved detection of cysteine and homocysteine. Analyst 2020; 145:2238-2244. [PMID: 32077868 DOI: 10.1039/c9an02469g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Thiol-containing amino acids, cysteine (Cys) and homocysteine (Hcy), play crucial roles in the biosystem; their abnormal contents in the cells are linked to many diseases. Herein, we designed and synthesized a novel near-infrared (NIR) phosphorescent iridium(iii) complex-based probe (FNO1) that can detect Cys and Hcy in real-time in the biosystem. Due to the advantages of the iridium complex, the FNO1 probe had excellent chemical stability and photostability, high luminescence efficiency, and long luminescence lifetime. In addition, the probe showed a fast response, high sensitivity, and low cytotoxicity. As verified by high resolution mass spectra (HR-MS) and density functional theory (DFT) calculations, the detection was achieved through the addition of the α,β-unsaturated ketone group in FNO1 by the nucleophilic thiol group in Cys and Hcy. Through time-resolved emission spectroscopy (TRES) and in the presence of a strongly fluorescent dye rhodamine B, the FNO1 probe could detect Cys and Hcy due to its long luminescence lifetime (260/197 ns). Finally, owing to its NIR-emitting properties, the FNO1 probe was successfully applied in the imaging of Cys and Hcy in living cells, zebrafish, and mice.
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Affiliation(s)
- Yuanyan Li
- College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, P. R. China. and School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, P. R. China
| | - Yongquan Wu
- School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, P. R. China
| | - Jie Wu
- School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, P. R. China
| | - Weican Lun
- School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, P. R. China
| | - Hong Zeng
- School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, P. R. China
| | - Xiaolin Fan
- College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, P. R. China. and School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, P. R. China
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Aydin Z, Keles M. Colorimetric Detection of Copper(II) Ions Using Schiff‐Base Derivatives. ChemistrySelect 2020. [DOI: 10.1002/slct.202001041] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Ziya Aydin
- Vocational School of Technical Sciences Karamanoğlu Mehmetbey University 70200 Karaman Turkey
| | - Mustafa Keles
- Department of Chemistry Faculty of Arts and Sciences Osmaniye Korkut Ata University 80010 Osmaniye Turkey
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Ye R, Tan C, Chen B, Li R, Mao Z. Zinc-Containing Metalloenzymes: Inhibition by Metal-Based Anticancer Agents. Front Chem 2020; 8:402. [PMID: 32509730 PMCID: PMC7248183 DOI: 10.3389/fchem.2020.00402] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 04/16/2020] [Indexed: 01/13/2023] Open
Abstract
DNA is considered to be the primary target of platinum-based anticancer drugs which have gained great success in clinics, but DNA-targeted anticancer drugs cause serious side-effects and easily acquired drug resistance. This has stimulated the search for novel therapeutic targets. In the past few years, substantial research has demonstrated that zinc-containing metalloenzymes play a vital role in the occurrence and development of cancer, and they have been identified as alternative targets for metal-based anticancer agents. Metal complexes themselves have also exhibited a lot of appealing features for enzyme inhibition, such as: (i) the facile construction of 3D structures that can increase the enzyme-binding selectivity and affinity; (ii) the intriguing photophysical and photochemical properties, and redox activities of metal complexes can offer possibilities to design enzyme inhibitors with multiple modes of action. In this review, we discuss recent examples of zinc-containing metalloenzyme inhibition of metal-based anticancer agents, especially three zinc-containing metalloenzymes overexpressed in tumors, including histone deacetylases (HDACs), carbonic anhydrases (CAs), and matrix metalloproteinases (MMPs).
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Affiliation(s)
- Ruirong Ye
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China.,MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, China
| | - Caiping Tan
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, China
| | - Bichun Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Rongtao Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Zongwan Mao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, China
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Li Y, Wu Y, Chen L, Zeng H, Chen X, Lun W, Fan X, Wong WY. A time-resolved near-infrared phosphorescent iridium(iii) complex for fast and highly specific peroxynitrite detection and bioimaging applications. J Mater Chem B 2019; 7:7612-7618. [PMID: 31746928 DOI: 10.1039/c9tb01673b] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Peroxynitrite (ONOO-), one of the reactive oxygen/nitrogen species (ROS/RNS) found in vivo, plays crucial roles in many physiological and pathological processes. The ability to selectively and sensitively determine ONOO-in vivo is important for the understanding of its biological roles. Thus, by utilizing the excellent chemical stability and photostability, high luminescence efficiency, and long luminescence lifetime of iridium complexes, we developed a novel near-infrared (NIR) phosphorescent iridium(iii) complex (FNO2) probe to detect ONOO- within seconds. The probe FNO2 showed better selectivity towards ONOO- over other interfering biomolecules, including O2- and ClO-. Moreover, it possessed a long luminescence lifetime, which enabled successful elimination of the interference from background fluorescence in vitro (simulated by Rhodamine B) in time-resolved emission spectra. Finally, in addition to its low cytotoxicity, the probe FNO2 showed emission wavelength in the NIR region and was able to specifically sense ONOO- induced in living cells and inflamed mouse models.
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Affiliation(s)
- Yuanyan Li
- College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, P. R. China. and School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, P. R. China.
| | - Yongquan Wu
- School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, P. R. China. and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, P. R. China.
| | - Luyan Chen
- School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, P. R. China.
| | - Hong Zeng
- School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, P. R. China.
| | - Xiaoyong Chen
- School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, P. R. China.
| | - Weican Lun
- School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, P. R. China.
| | - Xiaolin Fan
- College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, P. R. China. and School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, P. R. China.
| | - Wai-Yeung Wong
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, P. R. China. and The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, P. R. China
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