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Lee LCC, Lo KKW. Shining New Light on Biological Systems: Luminescent Transition Metal Complexes for Bioimaging and Biosensing Applications. Chem Rev 2024; 124:8825-9014. [PMID: 39052606 PMCID: PMC11328004 DOI: 10.1021/acs.chemrev.3c00629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
Luminescence imaging is a powerful and versatile technique for investigating cell physiology and pathology in living systems, making significant contributions to life science research and clinical diagnosis. In recent years, luminescent transition metal complexes have gained significant attention for diagnostic and therapeutic applications due to their unique photophysical and photochemical properties. In this Review, we provide a comprehensive overview of the recent development of luminescent transition metal complexes for bioimaging and biosensing applications, with a focus on transition metal centers with a d6, d8, and d10 electronic configuration. We elucidate the structure-property relationships of luminescent transition metal complexes, exploring how their structural characteristics can be manipulated to control their biological behavior such as cellular uptake, localization, biocompatibility, pharmacokinetics, and biodistribution. Furthermore, we introduce the various design strategies that leverage the interesting photophysical properties of luminescent transition metal complexes for a wide variety of biological applications, including autofluorescence-free imaging, multimodal imaging, organelle imaging, biological sensing, microenvironment monitoring, bioorthogonal labeling, bacterial imaging, and cell viability assessment. Finally, we provide insights into the challenges and perspectives of luminescent transition metal complexes for bioimaging and biosensing applications, as well as their use in disease diagnosis and treatment evaluation.
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Affiliation(s)
- Lawrence Cho-Cheung Lee
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, P. R. China
- Laboratory for Synthetic Chemistry and Chemical Biology Limited, Units 1503-1511, 15/F, Building 17W, Hong Kong Science Park, New Territories, Hong Kong, P. R. China
| | - Kenneth Kam-Wing Lo
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, P. R. China
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, P. R. China
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2
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Das B, Gupta S, Mondal A, Kalita KJ, Mallick AI, Gupta P. Tuning the Organelle-Specific Imaging and Photodynamic Therapeutic Efficacy of Theranostic Mono- and Trinuclear Organometallic Iridium(III) Complexes. J Med Chem 2023; 66:15550-15563. [PMID: 37950696 DOI: 10.1021/acs.jmedchem.3c01875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2023]
Abstract
The organelle-specific localization of mononuclear and trinuclear iridium(III) complexes and their photodynamic behavior within the cells are described herein, emphasizing their structure-activity relationship. Both the IrA2 and IrB2 complexes possess a pair of phenyl-benzothiazole derived from the -CHO moieties of mononuclear organometallic iridium(III) complexes IrA1 and IrB1, which chelates IrCp*Cl (Cp* = 1,2,3,4,5-pentamethylcyclopentadiene) to afford trinuclear complexes IrA3 and IrB3. Insights into the photophysical and electrochemical parameters of the complexes were obtained by a time-dependent density functional theory study. The synthesized complexes IrA2, IrA3, IrB2, and IrB3 were found to be nontoxic to human MCF7 breast carcinoma cells. However, the photoexcitation of complexes using LED light could effectively trigger intracellular reactive oxygen species (ROS) generation, leading to cell death. Furthermore, to check the organelle-specific localization of IrA2 and IrB2, we observed that both complexes could selectively localize in the endoplasmic reticulum. In contrast, trinuclear IrA3 and IrB3 accumulate in the nuclei. The photoexcitation of complexes using LED light could effectively trigger intracellular reactive oxygen species (ROS) generation, leading to cell death.
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Affiliation(s)
- Bishnu Das
- Department of Chemical Sciences, IISER Kolkata, Mohanpur, Nadia 741246, West Bengal, India
| | - Subhadeep Gupta
- Department of Biological Sciences, IISER Kolkata, Mohanpur, Nadia 741246, West Bengal, India
| | - Anushka Mondal
- Department of Biological Sciences, IISER Kolkata, Mohanpur, Nadia 741246, West Bengal, India
| | - Kalyan Jyoti Kalita
- Department of Chemical Sciences, IISER Kolkata, Mohanpur, Nadia 741246, West Bengal, India
| | - Amirul Islam Mallick
- Department of Biological Sciences, IISER Kolkata, Mohanpur, Nadia 741246, West Bengal, India
| | - Parna Gupta
- Department of Chemical Sciences, IISER Kolkata, Mohanpur, Nadia 741246, West Bengal, India
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3
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Phosphorescent Ir(III) Complexes for Biolabeling and Biosensing. Top Curr Chem (Cham) 2022; 380:35. [PMID: 35948820 DOI: 10.1007/s41061-022-00389-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 05/27/2022] [Indexed: 10/15/2022]
Abstract
Cyclometalated Ir(III) complexes exhibit strong phosphorescence emission with lifetime of submicroseconds to several microseconds at room temperature. Their synthetic versatility enables broad control of physical properties, such as charge and lipophilicity, as well as emission colors. These favorable properties have motivated the use of Ir(III) complexes in luminescent bioimaging applications. This review examines the recent progress in the development of phosphorescent biolabels and sensors based on Ir(III) complexes. It begins with a brief introduction about the basic principles of the syntheses and photophysical processes of cyclometalated Ir(III) complexes. Focus is placed on illustrating the broad imaging utility of Ir(III) complexes. Phosphorescent labels illuminating intracellular organelles, including mitochondria, lysosomes, and cell membranes, are summarized. Ir(III) complexes capable of visualization of tumor spheroids and parasites are also introduced. Facile chemical modification of the cyclometalating ligands endows the Ir(III) complexes with strong sensing ability. Sensors of temperature, pH, CO2, metal ions, anions, biosulfur species, reactive oxygen species, peptides, and viscosity have recently been added to the molecular imaging tools. This diverse utility demonstrates the potential of phosphorescent Ir(III) complexes toward bioimaging applications.
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Moura NMM, Serra VV, Bastos A, Biazotto JC, Castro KADF, Faustino MAF, Lodeiro C, da Silva RS, Neves MDGPMS. New Bis-Cyclometalated Iridium(III) Complexes with β-Substituted Porphyrin-Arylbipyridine as the Ancillary Ligand: Electrochemical and Photophysical Insights. Int J Mol Sci 2022; 23:ijms23147606. [PMID: 35886956 PMCID: PMC9319630 DOI: 10.3390/ijms23147606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 06/30/2022] [Accepted: 07/06/2022] [Indexed: 02/05/2023] Open
Abstract
An efficient synthetic access to new cationic porphyrin-bipyridine iridium(III) bis-cyclometalated complexes was developed. These porphyrins bearing arylbipyridine moieties at β-pyrrolic positions coordinated with iridium(III), and the corresponding Zn(II) porphyrin complexes were spectroscopically, electrochemically, and electronically characterized. The features displayed by the new cyclometalated porphyrin-bipyridine iridium(III) complexes, namely photoinduced electron transfer process (PET), and a remarkable efficiency to generate 1O2, allowing us to envisage new challenges and opportunities for their applications in several fields, such as photo(catalysis) and photodynamic therapies.
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Affiliation(s)
- Nuno M. M. Moura
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.A.F.F.); (M.d.G.P.M.S.N.)
- Correspondence: (N.M.M.M.); (V.V.S.); Tel.: +351-234-370-710 (N.M.M.M.)
| | - Vanda Vaz Serra
- Centro de Química Estrutural, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
- Correspondence: (N.M.M.M.); (V.V.S.); Tel.: +351-234-370-710 (N.M.M.M.)
| | - Alexandre Bastos
- CICECO, Department of Materials and Ceramic Engineering, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Juliana C. Biazotto
- Department of Biomolecular Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, São Paulo 14040-903, Brazil; (J.C.B.); (K.A.D.F.C.); (R.S.d.S.)
| | - Kelly A. D. F. Castro
- Department of Biomolecular Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, São Paulo 14040-903, Brazil; (J.C.B.); (K.A.D.F.C.); (R.S.d.S.)
| | - Maria Amparo F. Faustino
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.A.F.F.); (M.d.G.P.M.S.N.)
| | - Carlos Lodeiro
- BIOSCOPE Group, LAQV-REQUIMTE, Chemistry Department, Faculty of Science and Technology, University NOVA of Lisbon, 2829-516 Caparica, Portugal;
- ProteoMass Scientific Society, Madan Park, Rua dos Inventores, 2825-182 Caparica, Portugal
| | - Roberto S. da Silva
- Department of Biomolecular Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, São Paulo 14040-903, Brazil; (J.C.B.); (K.A.D.F.C.); (R.S.d.S.)
| | - Maria da Graça P. M. S. Neves
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.A.F.F.); (M.d.G.P.M.S.N.)
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5
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Zhang M, Qian M, Huang H, Gao Q, Zhang C, Qi H. Carboxyl group bearing iridium(III) solvent complex as photoluminescence and electrochemiluminescence probe for the detection of histidine. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116578] [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]
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De Soricellis G, Fagnani F, Colombo A, Dragonetti C, Roberto D. Exploring the potential of N^C^N cyclometalated Pt(II) complexes bearing 1,3-di(2-pyridyl)benzene derivatives for imaging and photodynamic therapy. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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7
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Metal Peptide Conjugates in Cell and Tissue Imaging and Biosensing. Top Curr Chem (Cham) 2022; 380:30. [PMID: 35701677 PMCID: PMC9197911 DOI: 10.1007/s41061-022-00384-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 05/10/2022] [Indexed: 11/05/2022]
Abstract
Metal complex luminophores have seen dramatic expansion in application as imaging probes over the past decade. This has been enabled by growing understanding of methods to promote their cell permeation and intracellular targeting. Amongst the successful approaches that have been applied in this regard is peptide-facilitated delivery. Cell-permeating or signal peptides can be readily conjugated to metal complex luminophores and have shown excellent response in carrying such cargo through the cell membrane. In this article, we describe the rationale behind applying metal complexes as probes and sensors in cell imaging and outline the advantages to be gained by applying peptides as the carrier for complex luminophores. We describe some of the progress that has been made in applying peptides in metal complex peptide-driven conjugates as a strategy for cell permeation and targeting of transition metal luminophores. Finally, we provide key examples of their application and outline areas for future progress.
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Dayanidhi PD, Vaidyanathan VG. Understanding the ancillary ligand effect on luminescent cyclometalated Ir(III) complex as a reporter for 2-acetylaminofluorene DNA(AAF-dG) adduct. J Biol Inorg Chem 2021; 27:189-199. [PMID: 34843001 DOI: 10.1007/s00775-021-01920-5] [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] [Received: 09/20/2021] [Accepted: 11/17/2021] [Indexed: 11/26/2022]
Abstract
Mutagenic agents such as aromatic amines undergo metabolic activation and produce DNA adducts at C8 position of guanine bases. N-2-acetylaminofluorene (AAF) generates different mutational outcomes when placed at G1, G2, and G3 of a NarI sequence (-G1G2CG3CC/T-). These outcomes are dictated by the conformations adopted by these adducts. Detection of such lesions is of considerable interest owing to their hazardous effects. Here, we report the synthesis of three cyclometalated [Ir(L)2dppz]+ complexes (L = 2-phenylpyridine (ppy) 1; benzo[h]quinoline (bhq) 2; 2-phenylquinoline (pq) 3; dppz = dipyrido[3,2-a:2',3'-c]phenazine) and their interaction with AAF adducted NarI DNA. Remarkably, complexes 1 and 2 displayed dominant 3LC transition characteristic of polar environment despite binding to the adducted sites. On the other hand, complex 3 binds to NarI sequences and behaves as a luminescent reporter for AAF-modified DNA. The results reported here emphasize that molecular light switching phenomenon can be stimulated by switching ancillary ligands and might act as potential probes for covalent-DNA defects.
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Affiliation(s)
- P David Dayanidhi
- Advanced Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, 600020, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - V G Vaidyanathan
- Advanced Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, 600020, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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9
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Zhou Y, Ding Y, Huang Y, Cai L, Xu J, Ma X. Synthesis and Structural Optimization of Iridium(III) Solvent Complex for Electrochemiluminescence Labeling of Histidine-Rich Protein and Immunoassay Applications for CRP Detection. ACS OMEGA 2020; 5:3638-3645. [PMID: 32118179 PMCID: PMC7045565 DOI: 10.1021/acsomega.9b04159] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 01/29/2020] [Indexed: 05/08/2023]
Abstract
The reaction between an iridium(III) solvent complex and the histidine site of biomolecules as one kind of novel bioconjugation approaches has received much attention during the past few years. To extend this novel bioconjugation approach into electrochemiluminescence (ECL) immunoassay and optimize the performances, three iridium(III) solvent complexes with different C∧N bidentate main ligands have been designed and synthesized in this work. Bovine serum albumin (BSA) as the standard histidine-rich protein is initially employed to evaluate the labeling performances by comparing the ECL intensity of the same amount of BSA labeled by different iridium(III) solvent complexes. Importantly, a magnetic beads-based sandwich immunoassay platform using Ir-dmpq (iridium(III) acetonitrile complex with 2-(3,5-dimethylphenyl)quinoline as the main ligand) as a structurally optimized labeling agent has been successfully constructed to detect C-reactive protein (CRP, an important biomarker of systemic inflammation in clinic), and the limit of detection based on this novel labeling agent could reach below 1 ng/mL, which may further pave the way for applications of the iridium(III) solvent complex in histidine-rich protein ECL labeling beyond fluorescence labeling.
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10
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Kang J, Nam JS, Lee HJ, Nam G, Rhee HW, Kwon TH, Lim MH. Chemical strategies to modify amyloidogenic peptides using iridium(iii) complexes: coordination and photo-induced oxidation. Chem Sci 2019; 10:6855-6862. [PMID: 31391908 PMCID: PMC6657414 DOI: 10.1039/c9sc00931k] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 06/03/2019] [Indexed: 12/20/2022] Open
Abstract
Effective chemical strategies, i.e., coordination and coordination-/photo-mediated oxidation, are rationally developed towards modification of amyloidogenic peptides and subsequent control of their aggregation and toxicity.
Amyloidogenic peptides are considered central pathological contributors towards neurodegeneration as observed in neurodegenerative disorders [e.g., amyloid-β (Aβ) peptides in Alzheimer's disease (AD)]; however, their roles in the pathologies of such diseases have not been fully elucidated since they are challenging targets to be studied due to their heterogeneous nature and intrinsically disordered structure. Chemical approaches to modify amyloidogenic peptides would be valuable in advancing our molecular-level understanding of their involvement in neurodegeneration. Herein, we report effective chemical strategies for modification of Aβ peptides (i.e., coordination and coordination-/photo-mediated oxidation) implemented by a single Ir(iii) complex in a photo-dependent manner. Such peptide variations can be achieved by our rationally designed Ir(iii) complexes (Ir-Me, Ir-H, Ir-F, and Ir-F2) leading to significantly modulating the aggregation pathways of two main Aβ isoforms, Aβ40 and Aβ42, as well as the production of toxic Aβ species. Overall, we demonstrate chemical tactics for modification of amyloidogenic peptides in an effective and manageable manner utilizing the coordination capacities and photophysical properties of transition metal complexes.
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Affiliation(s)
- Juhye Kang
- Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , Republic of Korea . .,Department of Chemistry , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea .
| | - Jung Seung Nam
- Department of Chemistry , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea .
| | - Hyuck Jin Lee
- Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , Republic of Korea . .,Department of Chemistry Education , Kongju National University , Gongju 32588 , Republic of Korea
| | - Geewoo Nam
- Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , Republic of Korea . .,Department of Chemistry , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea .
| | - Hyun-Woo Rhee
- Department of Chemistry , Seoul National University , Seoul 08826 , Republic of Korea
| | - Tae-Hyuk Kwon
- Department of Chemistry , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea .
| | - Mi Hee Lim
- Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , Republic of Korea .
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11
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Zaen R, Kim M, Park KM, Lee KH, Lee JY, Kang Y. Bipyridine-based iridium(iii) triplet emitters for organic light-emitting diodes (OLEDs): application and impact of phenyl substitution at the 5′-position of the N-coordinating pyridine ring. Dalton Trans 2019; 48:9734-9743. [PMID: 30984965 DOI: 10.1039/c9dt00596j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Three blue phosphorescent homoleptic iridium(iii) complexes based on a bipyridine ligand were synthesized.
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Affiliation(s)
- Rena Zaen
- Division of Science Education
- Kangwon National University
- Chuncheon 24341
- Republic of Korea
| | - Myeongbee Kim
- Division of Science Education
- Kangwon National University
- Chuncheon 24341
- Republic of Korea
| | - Ki-Min Park
- Research Institute of Natural Science
- Gyeongsang National University
- Jinju 52828
- Republic of Korea
| | - Kyung Hyung Lee
- School of Chemical Engineering
- Sungkyunkwan University
- Suwon
- Republic of Korea
| | - Jun Yeob Lee
- School of Chemical Engineering
- Sungkyunkwan University
- Suwon
- Republic of Korea
| | - Youngjin Kang
- Division of Science Education
- Kangwon National University
- Chuncheon 24341
- Republic of Korea
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12
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Obłoza M, Łapok Ł, Solarski J, Pędziński T, Nowakowska M. Facile Synthesis, Triplet‐State Properties, and Electrochemistry of Hexaiodo‐Subphthalocyanine. Chemistry 2018; 24:17080-17090. [DOI: 10.1002/chem.201803316] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 08/29/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Magdalena Obłoza
- Faculty of ChemistryJagiellonian University Gronostajowa 2 30-387 Kraków Poland
| | - Łukasz Łapok
- Faculty of ChemistryJagiellonian University Gronostajowa 2 30-387 Kraków Poland
| | - Jędrzej Solarski
- Institute of Physical ChemistryPolish Academy of Science 44/52 Kasprzaka 01-224 Warsaw Poland
| | - Tomasz Pędziński
- Faculty of ChemistryAdam Mickiewicz University in Poznań 89b Umultowska 61-614 Poznań Poland
| | - Maria Nowakowska
- Faculty of ChemistryJagiellonian University Gronostajowa 2 30-387 Kraków Poland
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13
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Takimoto K, Tamura K, Watanabe Y, Yamagishi A, Sato H. Microscopic chiral pockets in a tris(chelated) iridium(iii) complex as sites for dynamic enantioselective quenching. NEW J CHEM 2018. [DOI: 10.1039/c7nj04688j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A microscopic pocket surrounded by bulky ligands in Ir(iii) acted as a site discriminating the chirality of an approaching molecule.
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Affiliation(s)
- Kazuyoshi Takimoto
- Department of Chemistry
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama 790-8577
- Japan
| | - Kenji Tamura
- National Institute for Materials Science
- Tsukuba 305-0044
- Japan
| | - Yutaka Watanabe
- Department of Chemistry
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama 790-8577
- Japan
| | | | - Hisako Sato
- Department of Chemistry
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama 790-8577
- Japan
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14
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Gut A, Łapok Ł, Drelinkiewicz D, Pędziński T, Marciniak B, Nowakowska M. Visible-Light Photoactive, Highly Efficient Triplet Sensitizers Based on Iodinated Aza-BODIPYs: Synthesis, Photophysics and Redox Properties. Chem Asian J 2017; 13:55-65. [PMID: 29120080 DOI: 10.1002/asia.201701485] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 11/08/2017] [Indexed: 12/21/2022]
Abstract
A series of novel iodinated NO2 -substituted aza-BODIPYs have been synthesized and characterized. Highly desirable photophysical and photochemical properties were induced in NO2 -substituted aza-BODIPYs by iodination of the pyrrole rings. In particular, high values of singlet oxygen quantum yields (ΦΔ ) ranging from 0.79 to 0.85 were measured. The photooxygenation process proceeds via a Type II mechanism under the experimental conditions applied. The compounds studied exhibited an absorption band within the so-called "therapeutic window", with λmax located between 645 nm to 672 nm. They were non-fluorescent at room temperature with excited singlet-state lifetimes within the picosecond range as measured by femtosecond transient absorption. Nanosecond laser flash photolysis experiments revealed T1 →Tn absorption spanning from ca. 400 nm to ca. 500 nm and allowed determination of the triplet-state lifetimes. The estimated triplet lifetimes (τT ) in deaerated acetonitrile ranged between 2.74 μs and 3.50 μs. As estimated by CV/DPV measurements, all iodinated aza-BODIPYs studied exhibited one irreversible oxidation and two quasi-reversible reductions processes. Estimation of the EHOMO gave the value of -6.06 to -6.26 eV while the ELUMO was found to be located at ca. -4.6 eV. Thermogravimetric (TGA) analysis revealed that iodinated aza-BODIPYs were stable up to approximately 300 °C. All compounds studied exhibit high photostability in toluene solution.
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Affiliation(s)
- Arkadiusz Gut
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
| | - Łukasz Łapok
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
| | - Dawid Drelinkiewicz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
| | - Tomasz Pędziński
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, 89b Umultowska, 61-614, Poznań, Poland
| | - Bronisław Marciniak
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, 89b Umultowska, 61-614, Poznań, Poland
| | - Maria Nowakowska
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
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15
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Takimoto K, Watanabe Y, Mori S, Sato H. Vibrational circular dichroism and single crystal X-Ray diffraction analyses of [Ir(bzq)2(phen)]+ (bzq = benzo[h]quinoline; phen = 1,10-phenanthroline): absolute configuration and role of CH–π interaction in molecular packing. Dalton Trans 2017; 46:4397-4402. [DOI: 10.1039/c7dt00606c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The absolute configuration of a cationic iridium(iii) complex was determined in solution and solid by vibrational circular dichroism and X-ray diffraction analyses.
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Affiliation(s)
- Kazuyoshi Takimoto
- Department of Chemistry
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama 790-8577
- Japan
| | - Yutaka Watanabe
- Department of Chemistry
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama 790-8577
- Japan
| | - Shigeki Mori
- Advanced Research Support Center
- Ehime University
- Matsuyama 790-8577
- Japan
| | - Hisako Sato
- Department of Chemistry
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama 790-8577
- Japan
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16
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Sato H, Tamura K, Yajima T, Sato F, Yamagishi A. Chiral phosphorescent probes for amino acids: hybrids of iridium(iii) complexes with synthetic saponite. NEW J CHEM 2017. [DOI: 10.1039/c6nj03777a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The effects of amino acids on the emission of iridium(iii) complexes adsorbed by colloidal particles of synthetic saponite lead to the conclusion that the interplay between two intramolecular chiral centers achieved enantioselectivity.
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Affiliation(s)
- Hisako Sato
- Department of Chemistry
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama 790-8577
- Japan
| | - Kenji Tamura
- National Institute for Materials Science
- Tsukuba 305-0044
- Japan
| | - Tomoko Yajima
- Department of Chemistry
- Ochanomizu University
- Tokyo 112-8610
- Japan
| | - Fumi Sato
- School of Medicine
- Toho University
- Tokyo 143-8540
- Japan
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17
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Ramu V, Aute S, Taye N, Guha R, Walker MG, Mogare D, Parulekar A, Thomas JA, Chattopadhyay S, Das A. Photo-induced cytotoxicity and anti-metastatic activity of ruthenium(ii)–polypyridyl complexes functionalized with tyrosine or tryptophan. Dalton Trans 2017; 46:6634-6644. [DOI: 10.1039/c7dt00670e] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The synergestic effect of oxygen, light, and photosensitizer has found application in photodyanmic therapy (PDT).
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Affiliation(s)
- Vadde Ramu
- Organic Chemistry Division
- CSIR-National Chemical Laboratory
- Pune
- India
| | - Sunil Aute
- Organic Chemistry Division
- CSIR-National Chemical Laboratory
- Pune
- India
| | - Nandaraj Taye
- Chromatin and Disease Biology Laboratory
- National Centre for Cell Science
- Pune
- India
| | - Rweetuparna Guha
- Organic Chemistry Division
- CSIR-National Chemical Laboratory
- Pune
- India
| | | | - Devaraj Mogare
- Chromatin and Disease Biology Laboratory
- National Centre for Cell Science
- Pune
- India
| | - Apoorva Parulekar
- Chromatin and Disease Biology Laboratory
- National Centre for Cell Science
- Pune
- India
| | - Jim A. Thomas
- Department of Chemistry
- University of Sheffield
- Sheffield
- UK
| | - Samit Chattopadhyay
- Chromatin and Disease Biology Laboratory
- National Centre for Cell Science
- Pune
- India
- Indian Institute of Chemical Biology
| | - Amitava Das
- Organic Chemistry Division
- CSIR-National Chemical Laboratory
- Pune
- India
- CSIR-Central Salt and marine Chemicals Research Institute
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18
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Fu WC, Wu Y, So CM, Wong SM, Lei A, Kwong FY. Catalytic Direct C2-Alkenylation of Oxazoles at Parts per Million Levels of Palladium/PhMezole-Phos Complex. Org Lett 2016; 18:5300-5303. [DOI: 10.1021/acs.orglett.6b02619] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wai Chung Fu
- State
Key Laboratory of Chirosciences and Department of Applied Biology
and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon 852, Hong Kong
| | - Yong Wu
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P.R. China
| | - Chau Ming So
- State
Key Laboratory of Chirosciences and Department of Applied Biology
and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon 852, Hong Kong
| | - Shun Man Wong
- State
Key Laboratory of Chirosciences and Department of Applied Biology
and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon 852, Hong Kong
| | - Aiwen Lei
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P.R. China
| | - Fuk Yee Kwong
- State
Key Laboratory of Chirosciences and Department of Applied Biology
and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon 852, Hong Kong
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19
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Shigehiro T, Kawai Y, Yagi S, Maeda T, Nakazumi H, Sakurai Y. Novel Phosphorescent Platinum(II) Dipyrido[3,2-a:2′,3′-c]phenazine Bis(acetylide) Complexes Bearing Electron-donating Side-arms at the 2,7-Positions. CHEM LETT 2015. [DOI: 10.1246/cl.141014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tatsuya Shigehiro
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University
| | - Yasuhiro Kawai
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University
| | - Shigeyuki Yagi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University
| | - Takeshi Maeda
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University
| | - Hiroyuki Nakazumi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University
| | - Yoshiaki Sakurai
- Textile and Polymer Section, Technology Research Institute of Osaka Prefecture
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20
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Baggaley E, Cao DK, Sykes D, Botchway SW, Weinstein JA, Ward MD. Combined two-photon excitation and d→f energy transfer in a water-soluble Ir(III)/Eu(III) dyad: two luminescence components from one molecule for cellular imaging. Chemistry 2014; 20:8898-903. [PMID: 24930403 PMCID: PMC4145666 DOI: 10.1002/chem.201403618] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Indexed: 11/18/2022]
Abstract
The first example of cell imaging using two independent emission components from a dinuclear d/f complex is reported. A water-stable, cell-permeable Ir(III) /Eu(III) dyad undergoes partial Ir→Eu energy transfer following two-photon excitation of the Ir unit at 780 nm. Excitation in the near-IR region generated simultaneously green Ir-based emission and red Eu-based emission from the same probe. The orders-of-magnitude difference in their timescales (Ir ca. μs; Eu ca. 0.5 ms) allowed them to be identified by time-gated detection. Phosphorescence lifetime imaging microscopy (PLIM) allowed the lifetime of the Ir-based emission to be measured in different parts of the cell. At the same time, the cells are simultaneously imaged by using the Eu-based emission component at longer timescales. This new approach to cellular imaging by using dual d/f emitters should therefore enable autofluorescence-free sensing of two different analytes, independently, simultaneously and in the same regions of a cell.
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Affiliation(s)
| | - Deng-Ke Cao
- Department of Chemistry, University of SheffieldSheffield S3 7HF (UK)
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing UniversityNanjing 210093 (P.R. China)
| | - Daniel Sykes
- Department of Chemistry, University of SheffieldSheffield S3 7HF (UK)
| | - Stanley W Botchway
- Rutherford Appleton Laboratory, STFC, Research Complex at Harwell, Harwell Science and Innovation CampusDidcot OX11 0FA (UK)
| | - Julia A Weinstein
- Department of Chemistry, University of SheffieldSheffield S3 7HF (UK)
| | - Michael D Ward
- Department of Chemistry, University of SheffieldSheffield S3 7HF (UK)
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21
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Yu Q, Liu Y, Xu L, Zheng C, Le F, Qin X, Liu Y, Liu J. Ruthenium(II) polypyridyl complexes: cellular uptake, cell image and apoptosis of HeLa cancer cells induced by double targets. Eur J Med Chem 2014; 82:82-95. [PMID: 24878637 DOI: 10.1016/j.ejmech.2014.05.040] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 05/11/2014] [Accepted: 05/12/2014] [Indexed: 12/30/2022]
Abstract
Studies have shown that ruthenium complexes have relatively strong anticancer activity, cell uptake of drugs have a crucial impact on the pharmacological activity, using autofluorescence of ruthenium complexes could effectively track cancer cells and drug distribution, transport accurately in real time. In this work, we present the synthesis and detailed characterization of two novel Ru(II) complexes with hydrophobic ancillary ligands, namely [Ru(bpy)2(5-idip)](2+) (RBD) and [Ru(phen)2(5-idip)](2+) (RPD) (5-idip = 2-indole-[4,5-f][1,10]phenanthroline). We have shown that RPD can enter the HeLa cells efficiently through non-endocytotic, but energy-dependent mechanism and first accumulated in lysosomes, and then escape from the lysosomes and localize within the nuclei, efficiently lead to the inhibition of DNA transcription and translation and induced cell apoptosis. Further studies on the mechanism of apoptosis in HeLa cells demonstrate that RPD is able to induce mitochondria-mediated apoptosis in HeLa cells through activation of initiator caspase-9 and down-stream effector caspase-3 and -7 and cleavage of PARP. We have also demonstrated that RPD bind to telomeric G-quadruplex DNA effectively and selectively, together with increased p21 and p16 expression. Our findings suggest that RPD induces HeLa cell apoptosis through mitochondria-mediated pathway and inhibition of telomerase activity. RPD may be a candidate for further evaluation as a chemotherapeutic agent for human cancers.
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Affiliation(s)
- Qianqian Yu
- Department of Chemistry, Jinan University, Guangzhou 510632, China
| | - Yanan Liu
- Department of Chemistry, Jinan University, Guangzhou 510632, China; Department ABCT, The Hong Kong Polytechnic University, Hong Kong
| | - Lei Xu
- Department of Chemistry, Jinan University, Guangzhou 510632, China
| | - Chuping Zheng
- Department of Chemistry, Jinan University, Guangzhou 510632, China
| | - Fangling Le
- Department of Chemistry, Jinan University, Guangzhou 510632, China
| | - Xiuying Qin
- Department of Chemistry, Jinan University, Guangzhou 510632, China
| | - Yanyu Liu
- Department of Chemistry, Jinan University, Guangzhou 510632, China
| | - Jie Liu
- Department of Chemistry, Jinan University, Guangzhou 510632, China.
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22
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Phosphorescent Iridium(III) Complexes for Bioimaging. LUMINESCENT AND PHOTOACTIVE TRANSITION METAL COMPLEXES AS BIOMOLECULAR PROBES AND CELLULAR REAGENTS 2014. [DOI: 10.1007/430_2014_166] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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23
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Zhang G, Zhang H, Gao Y, Tao R, Xin L, Yi J, Li F, Liu W, Qiao J. Near-Infrared-Emitting Iridium(III) Complexes as Phosphorescent Dyes for Live Cell Imaging. Organometallics 2013. [DOI: 10.1021/om400676h] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Guoliang Zhang
- Key Lab of Organic Optoelectronics and Molecular
Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Huiyuan Zhang
- MOE Key Laboratory
of Protein Science, School
of Life Sciences, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Yuan Gao
- Department of Chemistry, Fudan University, Shanghai 200433, People’s Republic of China
| | - Ran Tao
- Key Lab of Organic Optoelectronics and Molecular
Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Lijun Xin
- Key Lab of Organic Optoelectronics and Molecular
Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Junyang Yi
- MOE Key Laboratory
of Protein Science, School
of Life Sciences, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Fuyou Li
- Department of Chemistry, Fudan University, Shanghai 200433, People’s Republic of China
| | - Wanli Liu
- MOE Key Laboratory
of Protein Science, School
of Life Sciences, Tsinghua University, Beijing 100084, People’s Republic of China
- Collaborative Innovation Center
for Diagnosis
and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis
and Treatment of Infectious Diseases, The First Affiliated Hospital,
College of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
| | - Juan Qiao
- Key Lab of Organic Optoelectronics and Molecular
Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
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