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Conway-Kenny R, Ferrer-Ugalde A, Careta O, Cui X, Zhao J, Nogués C, Núñez R, Cabrera-González J, Draper SM. Ru(ii) and Ir(iii) phenanthroline-based photosensitisers bearing o-carborane: PDT agents with boron carriers for potential BNCT. Biomater Sci 2021; 9:5691-5702. [PMID: 34264257 DOI: 10.1039/d1bm00730k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Four novel transition metal-carborane photosensitisers were prepared by Sonogashira cross-coupling of 1-(4-ethynylbenzyl)-2-methyl-o-carborane (A-CB) with halogenated Ru(ii)- or Ir(iii)-phenanthroline complexes. The resulting boron-rich complexes with one (RuCB and IrCB) or two carborane cages (RuCB2 and IrCB2) were spectroscopically characterised, and their photophysical properties investigated. RuCB displayed the most attractive photophysical properties in solution (λem 635 nm, τT 2.53 μs, and φp 20.4%). Nanosecond time-resolved transient absorption studies were used to explore the 3MLCT nature of the triplet excited states, and the highest singlet oxygen quantum yields (ΦΔ) were obtained for the mono-carborane-phenanthroline complexes (RuCB: 52% and IrCB: 25%). None of the complexes produce dark toxicity in SKBR-3 cells after incubation under photodynamic therapy (PDT) conditions. Remarkably, mono-carboranes RuCB and IrCB were the best internalised by the SKBR-3 cells, demonstrating the first examples of tris-bidentate transition metal-carborane complexes acting as triplet photosensitisers for PDT with a high photoactivity; RuCB or IrCB killed ∼50% of SKBR-3 cells at 10 μM after irradiation. Therefore, the high-boron content and the photoactive properties of these photosensitisers make them potential candidates as dual anti-cancer agents for PDT and Boron Neutron Capture Therapy (BNCT).
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Affiliation(s)
- Robert Conway-Kenny
- School of Chemistry, Trinity College Dublin, College Green, Dublin 2, Ireland.
| | - Albert Ferrer-Ugalde
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus de la UAB, 08193-Bellatera, Barcelona, Spain
| | - Oriol Careta
- Departament de Biologia Cellular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, E-08193-Bellaterra, Barcelona, Spain.
| | - Xiaoneng Cui
- School of Chemistry, Trinity College Dublin, College Green, Dublin 2, Ireland. and State Key Laboratory of Fine Chemicals, Dalian University of Technology, E208 Western Campus, 2 Ling-Gong Road, Dalian 116012, P. R. China
| | - Jianzhang Zhao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, E208 Western Campus, 2 Ling-Gong Road, Dalian 116012, P. R. China
| | - Carme Nogués
- Departament de Biologia Cellular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, E-08193-Bellaterra, Barcelona, Spain.
| | - Rosario Núñez
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus de la UAB, 08193-Bellatera, Barcelona, Spain
| | | | - Sylvia M Draper
- School of Chemistry, Trinity College Dublin, College Green, Dublin 2, Ireland.
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Savchuk MI, Krinochkin AP, Rammohan A, Khasanov AF, Kopchuk DS, Egorov IN, Santra S, Zyryanov GV, Rusinov VL, Chupakhin ON. An expedient synthesis of 5-alkynyl-6-aryl-2,2′-bipyridines. MENDELEEV COMMUNICATIONS 2020. [DOI: 10.1016/j.mencom.2020.09.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Lahav M, van der Boom ME. Polypyridyl Metallo-Organic Assemblies for Electrochromic Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1706641. [PMID: 29577472 DOI: 10.1002/adma.201706641] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 12/06/2017] [Indexed: 05/28/2023]
Abstract
Electrochromic films undergo optical changes in response to a redox stimulus. This intriguing phenomenon can be used for a wide range of applications, including smart windows, sensors, color displays, and memory elements. Despite the rapid progress of late, designing suitable electrochromic materials that offer low-cost production, appealing colors, and pronounced optical contrast with high efficiency, as well as long-term stability remains an engineering challenge. Solid-state metal oxides, liquid crystals, and organic polymers have been for many years the leading candidates, successfully making their way into commercial products. An alternative class of materials relies on metal complexes that can be processed from solution, offer a variety of colors, and have metal-centered stable and reversible redox chemistry. These metallo-organic materials possess a full range of electrochromic properties, including ultrahigh coloration efficiencies, and cyclic stability. Here, some of the recent scientific developments in this field are highlighted.
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Affiliation(s)
- Michal Lahav
- Department of Organic Chemistry, Weizmann Institute of Science, 760001, Rehovot, Israel
| | - Milko E van der Boom
- Department of Organic Chemistry, Weizmann Institute of Science, 760001, Rehovot, Israel
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Ingle SA, Kate AN, Kumbhar AA, Khan AA, Rao SS, Gejji SP. Synthesis and biological evaluation of copper(ii) pyrenethiosemicarbazone. RSC Adv 2015. [DOI: 10.1039/c5ra00020c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A fluorescent Cu(ii) pyrenethiosemicarbazone complex exhibits enhanced DNA-cleavage and cytotoxicity on photoexcitation.
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Affiliation(s)
- Suwarna A. Ingle
- Department of Chemistry
- Savitribai Phule Pune University
- Pune-411007
- India
| | - Anup N. Kate
- Department of Chemistry
- Savitribai Phule Pune University
- Pune-411007
- India
| | - Anupa A. Kumbhar
- Department of Chemistry
- Savitribai Phule Pune University
- Pune-411007
- India
| | - Ayesha A. Khan
- Department of Chemistry
- Savitribai Phule Pune University
- Pune-411007
- India
| | - Soniya S. Rao
- Department of Chemistry
- Savitribai Phule Pune University
- Pune-411007
- India
| | - Shridhar P. Gejji
- Department of Chemistry
- Savitribai Phule Pune University
- Pune-411007
- India
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Shiotsuka M, Kondo H, Inomata T, Sako K, Masuda H. Electrochemical and Photophysical Study in Solution and on Ruthenium(II) Polypyridyl Complexes Containing Thiophenylethynylphenanthrolines Self-assembled on Gold Surfaces. CHEM LETT 2012. [DOI: 10.1246/cl.2012.1417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - Hiroshi Kondo
- Graduate School of Engineering, Nagoya Institute of Technology
| | | | - Katsuya Sako
- Graduate School of Engineering, Nagoya Institute of Technology
| | - Hideki Masuda
- Graduate School of Engineering, Nagoya Institute of Technology
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6
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Low PJ, Brown NJ. Electronic Interactions Between and Through Covalently-Bonded Polymetallic Complexes. J CLUST SCI 2010. [DOI: 10.1007/s10876-010-0328-4] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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7
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Shiotsuka M, Tsuji Y, Keyaki K, Nozaki K. Photophysical Properties of Ruthenium(II) Polypyridyl-Gold(I) Ethynyl Dyads and Triads Containing Mono- or Diethynylphenanthroline Incorporated into Gold(I) Triphenylphosphine Organometallics. Inorg Chem 2010; 49:4186-93. [DOI: 10.1021/ic902417m] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michito Shiotsuka
- Graduate School of Engineering, Nagoya Institute of Technology, Showa-ku, Nagoya, Aichi 466-8555, Japan
| | - Yasushi Tsuji
- Graduate School of Engineering, Nagoya Institute of Technology, Showa-ku, Nagoya, Aichi 466-8555, Japan
| | - Kazutoshi Keyaki
- Department of Chemistry, Graduate School of Science and Engineering, University of Toyama, 3190, Gofuku, Toyama-shi, Toyama 930-8555, Japan
| | - Koichi Nozaki
- Department of Chemistry, Graduate School of Science and Engineering, University of Toyama, 3190, Gofuku, Toyama-shi, Toyama 930-8555, Japan
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Coleman A, Pryce MT. Synthesis, Electrochemistry, and Photophysical Properties of a Series of Luminescent Pyrene-Thiophene Dyads and the Corresponding Co2(CO)6 Complexes. Inorg Chem 2008; 47:10980-90. [DOI: 10.1021/ic801226p] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anthony Coleman
- School of Chemical Sciences, SRC for Solar Energy Conversion, Dublin City University, Dublin 9, Ireland
| | - Mary T. Pryce
- School of Chemical Sciences, SRC for Solar Energy Conversion, Dublin City University, Dublin 9, Ireland
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