1
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Dellal F, Santo Domingo Porqueras D, Narayanin-Richenapin S, Thimotee M, Delahaye V, Diouf Y, Piasta K, Gumienna-Kontecka E, Kozlowski H, Beyler M, Tripier R, Moyeux A, Gager O, Besnard V, Salerno M. Multistep synthesis of a novel copper complex with potential for Alzheimer's disease diagnosis. J Biol Inorg Chem 2023; 28:777-790. [PMID: 37978078 DOI: 10.1007/s00775-023-02028-8] [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: 07/25/2023] [Accepted: 09/12/2023] [Indexed: 11/19/2023]
Abstract
Positron emission tomography (PET) imaging of Aβ plaques, is recognized as a tool for the diagnosis of Alzheimer's disease. As a contribution to the development of new strategies for early diagnosis of the disease, using PET medical imaging technique, a new copper complex, the [Cu(TE1PA-ONO)]+ was synthesized in ten steps. The key step of our strategy is the coupling of a monopicolinate-N-alkylated cyclam-based ligand with a moiety capable of recognizing Aβ plaques via a successful and challenging Buchwald-Hartwig coupling reaction. To our knowledge, it is the first time that such a strategy is used to functionalize polyazamacrocyclic derivatives. The thermodynamic stability constants determined in MeOH/H2O solvent indicate that the attachment of this moiety does not weaken the chelating properties of TE1PA-ONO ligand in relation to parent HTE1PA. The novel complex described here is able to recognize amyloid plaques in brain sections from Alzheimer's disease patients and shows low toxicity to human neuronal cells.
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Affiliation(s)
- Fatma Dellal
- Université Sorbonne Paris Nord, UMR-CNRS 7244, Laboratoire Chimie, Structures, Propriétés de Biomatériaux et d'Agents Thérapeutiques (CSPBAT), équipe NBD, 1 rue de Chablis, 93000, Bobigny, France
| | - Diego Santo Domingo Porqueras
- Université Sorbonne Paris Nord, UMR-CNRS 7244, Laboratoire Chimie, Structures, Propriétés de Biomatériaux et d'Agents Thérapeutiques (CSPBAT), équipe NBD, 1 rue de Chablis, 93000, Bobigny, France
| | - Stacy Narayanin-Richenapin
- Université Sorbonne Paris Nord, UMR-CNRS 7244, Laboratoire Chimie, Structures, Propriétés de Biomatériaux et d'Agents Thérapeutiques (CSPBAT), équipe NBD, 1 rue de Chablis, 93000, Bobigny, France
| | - Marine Thimotee
- Université Sorbonne Paris Nord, UMR-CNRS 7244, Laboratoire Chimie, Structures, Propriétés de Biomatériaux et d'Agents Thérapeutiques (CSPBAT), équipe NBD, 1 rue de Chablis, 93000, Bobigny, France
| | - Vanessa Delahaye
- Université Sorbonne Paris Nord, UMR-CNRS 7244, Laboratoire Chimie, Structures, Propriétés de Biomatériaux et d'Agents Thérapeutiques (CSPBAT), équipe NBD, 1 rue de Chablis, 93000, Bobigny, France
| | - Yacine Diouf
- Université Sorbonne Paris Nord, UMR-CNRS 7244, Laboratoire Chimie, Structures, Propriétés de Biomatériaux et d'Agents Thérapeutiques (CSPBAT), équipe NBD, 1 rue de Chablis, 93000, Bobigny, France
| | - Karolina Piasta
- Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, 50-383, Wroclaw, Poland
| | | | - Henryk Kozlowski
- Department of Health Sciences, University of Opole, Katowicka 68, 45-060, Opole, Poland
| | - Maryline Beyler
- Univ Brest, UMR-CNRS 6521 CEMCA, UFR des Sciences et Techniques, 6 avenue Victor le Gorgeu, C.S. 93837, 29238, Brest, France
| | - Raphael Tripier
- Univ Brest, UMR-CNRS 6521 CEMCA, UFR des Sciences et Techniques, 6 avenue Victor le Gorgeu, C.S. 93837, 29238, Brest, France
| | - Alban Moyeux
- Université Sorbonne Paris Nord, UMR-CNRS 7244, Laboratoire Chimie, Structures, Propriétés de Biomatériaux et d'Agents Thérapeutiques (CSPBAT), équipe NBD, 1 rue de Chablis, 93000, Bobigny, France
| | - Olivier Gager
- Université Sorbonne Paris Nord, UMR-CNRS 7244, Laboratoire Chimie, Structures, Propriétés de Biomatériaux et d'Agents Thérapeutiques (CSPBAT), équipe NBD, 1 rue de Chablis, 93000, Bobigny, France
| | - Valérie Besnard
- Université Sorbonne Paris Nord, UMR1272, Laboratoire Hypoxie et Poumon, Plateforme TisCel 13, 1 rue de Chablis, 93000, Bobigny, France
| | - Milena Salerno
- Université Sorbonne Paris Nord, UMR-CNRS 7244, Laboratoire Chimie, Structures, Propriétés de Biomatériaux et d'Agents Thérapeutiques (CSPBAT), équipe NBD, 1 rue de Chablis, 93000, Bobigny, France.
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2
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Hamon N, Bridou L, Roux M, Maury O, Tripier R, Beyler M. Design of Bifunctional Pyclen-Based Lanthanide Luminescent Bioprobes for Targeted Two-Photon Imaging. J Org Chem 2023; 88:8286-8299. [PMID: 37273214 DOI: 10.1021/acs.joc.3c00287] [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: 06/06/2023]
Abstract
In the past, Lanthanide Luminescent Bioprobes (LLBs) based on pyclen-bearing π-extended picolinate antennas were synthesized and demonstrated well-adapted optical properties for biphotonic microscopy. The objective of this work is to develop a strategy to design bifunctional analogues of the previously studied LLBs presenting an additional reactive chemical group to allow their coupling to biological vectors to reach deep in vivo targeted two-photon bioimaging. Herein, we elaborated a synthetic scheme allowing the introduction of a primary amine on the para position of the macrocyclic pyridine unit. The photophysical and bioimaging studies demonstrate that the introduction of the reactive function does not alter the luminescent properties of the LLBs paving the way for further applications.
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Affiliation(s)
- Nadège Hamon
- Univ Brest, UMR-CNRS 6521 CEMCA, 6 avenue Victor le Gorgeu, 29238 BREST, France
| | - Lucile Bridou
- Univ Lyon, ENS de Lyon, CNRS UMR 5182, Laboratoire de Chimie, Lyon F-69342, France
| | - Margaux Roux
- Univ Lyon, ENS de Lyon, CNRS UMR 5182, Laboratoire de Chimie, Lyon F-69342, France
| | - Olivier Maury
- Univ Lyon, ENS de Lyon, CNRS UMR 5182, Laboratoire de Chimie, Lyon F-69342, France
| | - Raphaël Tripier
- Univ Brest, UMR-CNRS 6521 CEMCA, 6 avenue Victor le Gorgeu, 29238 BREST, France
| | - Maryline Beyler
- Univ Brest, UMR-CNRS 6521 CEMCA, 6 avenue Victor le Gorgeu, 29238 BREST, France
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3
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Starck M, Fradgley JD, De Rosa DF, Batsanov AS, Papa M, Taylor MJ, Lovett JE, Lutter JC, Allen MJ, Parker D. Versatile Para-Substituted Pyridine Lanthanide Coordination Complexes Allow Late Stage Tailoring of Complex Function. Chemistry 2021; 27:17921-17927. [PMID: 34705302 PMCID: PMC8688332 DOI: 10.1002/chem.202103243] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Indexed: 12/28/2022]
Abstract
A series of cationic and neutral p-Br and p-NO2 pyridine substituted Eu(III) and Gd(III) coordination complexes serve as versatile synthetic intermediates. Nucleophilic aromatic substitution occurs readily at the para position under mild conditions, allowing C-N and C-C bond forming reactions to take place, permitting the introduction of azide, amino and alkynyl substituents. For Eu(III) complexes, this approach allows late stage tuning of absorption and emission spectral properties, exemplified by the lowering of the energy of an LMCT transition accompanied by a reduction in the Eu-Npy bond length. Additionally, these complexes provide direct access to the corresponding Eu(II) analogues. With the Gd(III) series, the nature of the p-substituent does not significantly change the EPR properties (linewidth, relaxation times), as required for their development as EPR spin probes that can be readily conjugated to biomolecules under mild conditions.
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Affiliation(s)
- Matthieu Starck
- Department of ChemistryDurham UniversitySouth RoadDurhamDH1 3LEUK
| | - Jack D. Fradgley
- Department of ChemistryDurham UniversitySouth RoadDurhamDH1 3LEUK
| | | | | | - Maria Papa
- SUPASchool of Physics and Astronomy and BSRCUniversity of St AndrewsNorth HaughSt AndrewsKY16 9SSUK
| | - Michael J. Taylor
- SUPASchool of Physics and Astronomy and BSRCUniversity of St AndrewsNorth HaughSt AndrewsKY16 9SSUK
| | - Janet E. Lovett
- SUPASchool of Physics and Astronomy and BSRCUniversity of St AndrewsNorth HaughSt AndrewsKY16 9SSUK
| | - Jacob C. Lutter
- Department of ChemistryWayne State University5101 Cass AvenueDetroitMI 48202USA
| | - Matthew J. Allen
- Department of ChemistryWayne State University5101 Cass AvenueDetroitMI 48202USA
| | - David Parker
- Department of ChemistryDurham UniversitySouth RoadDurhamDH1 3LEUK
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4
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Fradgley JD, Frawley AT, Pal R, Parker D. Striking solvent dependence of total emission and circularly polarised luminescence in coordinatively saturated chiral europium complexes: solvation significantly perturbs the ligand field. Phys Chem Chem Phys 2021; 23:11479-11487. [PMID: 33959741 DOI: 10.1039/d1cp01686e] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Examination of total emission and circularly polarised luminescence (CPL) spectra of three 9-coordinate Eu(iii) complexes with well-defined speciation shows that the ligand fields of these C3 symmetric complexes are extremely sensitive to solvent polarity, even when solvent is not present in the first coordination sphere. The energies, intensities, and (for CPL) the sign of some transitions vary with solvent polarity. These observations are rationalised by analysis of the factors that control total and circularly polarised emission, and have important implications for design of responsive luminescent Ln(iii) probes.
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Affiliation(s)
- Jack D Fradgley
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
| | - Andrew T Frawley
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
| | - Robert Pal
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
| | - David Parker
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
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5
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MacKenzie LE, Pal R. Circularly polarized lanthanide luminescence for advanced security inks. Nat Rev Chem 2020; 5:109-124. [PMID: 37117607 DOI: 10.1038/s41570-020-00235-4] [Citation(s) in RCA: 171] [Impact Index Per Article: 42.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/28/2020] [Indexed: 02/07/2023]
Abstract
Authenticating products and documents with security inks is vital to global commerce, security and health. Lanthanide complexes are widely used in luminescent security inks owing to their unique and robust photophysical properties. Lanthanide complexes can also be engineered to undergo circularly polarized luminescence (CPL), which encodes chiral molecular fingerprints in luminescence spectra that cannot be decoded by conventional optical measurements. However, chiral CPL signals have not yet been exploited as an extra security layer in advanced security inks. This Review introduces CPL and related concepts that are necessary to appreciate the challenges and potential of lanthanide-based, CPL-active security inks. We describe recent advances in CPL analysis and read-out technologies that have expedited CPL-active security ink applications. Further, we provide a systematic meta-analysis of strongly CPL-active Euiii, Tbiii, Smiii, Ybiii, Cmiii, Dyiii and Criii complexes, discussing the suitability of their photophysical properties and highlighting promising candidates. We conclude by providing key recommendations for the development and advancement of the field.
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6
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Arrico L, Di Bari L, Zinna F. Quantifying the Overall Efficiency of Circularly Polarized Emitters. Chemistry 2020; 27:2920-2934. [DOI: 10.1002/chem.202002791] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Indexed: 01/06/2023]
Affiliation(s)
- Lorenzo Arrico
- Dipartimento di Chimica e Chimica Industriale Università di Pisa Via Moruzzi 13 56124 Pisa Italy
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale Università di Pisa Via Moruzzi 13 56124 Pisa Italy
| | - Francesco Zinna
- Dipartimento di Chimica e Chimica Industriale Università di Pisa Via Moruzzi 13 56124 Pisa Italy
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7
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MacKenzie LE, Pålsson LO, Parker D, Beeby A, Pal R. Rapid time-resolved Circular Polarization Luminescence (CPL) emission spectroscopy. Nat Commun 2020; 11:1676. [PMID: 32245991 PMCID: PMC7125171 DOI: 10.1038/s41467-020-15469-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 03/10/2020] [Indexed: 11/30/2022] Open
Abstract
Circular polarisation luminescence (CPL) emission spectroscopy is a powerful tool for probing the fundamental chiroptical features of optically emissive chiral molecular systems. However, uptake of CPL spectroscopy has been impeded by the limitations of conventional scanning monochromator (SM) CPL spectrometers, which are costly to acquire and maintain, and typically require tens of minutes to acquire a typical CPL spectrum. Here, we demonstrate a design of CPL spectrometer which uses rapid readout solid state (SS) spectrometer detectors and a dual channel optical layout to acquire CPL spectra in as little as 10 milliseconds. We validate and demonstrate equivalent CPL measurement by measuring CPL spectra of two reference europium(III) complexes. Further, we demonstrate time-gated CPL acquisition, enabling long-lived CPL luminescence to be distinguished from short-lived emission of other fluorescent species. We anticipate that SS-CPL spectrometers will enable flexible, rapid, and relatively low-cost CPL spectroscopy for diverse applications. Circular polarization luminescence (CPL) spectroscopy is a tool to study chiroptical systems, but the measurement process is generally very slow. The authors introduce a CPL technique with much faster acquisition, demonstrating meaningful time-dependent measurements and enabling new applications.
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Affiliation(s)
- Lewis E MacKenzie
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK
| | - Lars-Olof Pålsson
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK
| | - David Parker
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK
| | - Andrew Beeby
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK
| | - Robert Pal
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
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8
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Leygue N, Enel M, Diallo A, Mestre-Voegtlé B, Galaup C, Picard C. Efficient Synthesis of a Family of Bifunctional Chelators Based on the PCTA[12] Macrocycle Suitable for Bioconjugation. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900280] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Nadine Leygue
- SPCMIB; UMR 5068 CNRS-Université Paul Sabatier-Toulouse III; 118 route de Narbonne 31062 Toulouse France
| | - Morgane Enel
- SPCMIB; UMR 5068 CNRS-Université Paul Sabatier-Toulouse III; 118 route de Narbonne 31062 Toulouse France
| | - Abdel Diallo
- SPCMIB; UMR 5068 CNRS-Université Paul Sabatier-Toulouse III; 118 route de Narbonne 31062 Toulouse France
| | - Béatrice Mestre-Voegtlé
- SPCMIB; UMR 5068 CNRS-Université Paul Sabatier-Toulouse III; 118 route de Narbonne 31062 Toulouse France
| | - Chantal Galaup
- SPCMIB; UMR 5068 CNRS-Université Paul Sabatier-Toulouse III; 118 route de Narbonne 31062 Toulouse France
| | - Claude Picard
- SPCMIB; UMR 5068 CNRS-Université Paul Sabatier-Toulouse III; 118 route de Narbonne 31062 Toulouse France
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9
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New advances in the synthesis of tripyridinophane macrocycles suitable to enhance the luminescence of Ln(III) ions in aqueous solution. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.06.056] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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10
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Dai L, Lo WS, Zhang J, Law GL. One-Step Reaction for Screening of Chromophores to Improve the Luminescence of Lanthanide Complexes. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700403] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Lixiong Dai
- Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hung Hom Kowloon, Hong Kong SAR China
- The Hong Kong Polytechnic University, Shenzhen Research Institute; Shenzhen China
| | - Wai-Sum Lo
- Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hung Hom Kowloon, Hong Kong SAR China
| | - Junhui Zhang
- Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hung Hom Kowloon, Hong Kong SAR China
| | - Ga-Lai Law
- Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hung Hom Kowloon, Hong Kong SAR China
- The Hong Kong Polytechnic University, Shenzhen Research Institute; Shenzhen China
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11
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Ito S, Ikeda K, Nakanishi S, Imai Y, Asami M. Concentration-dependent circularly polarized luminescence (CPL) of chiral N,N′-dipyrenyldiamines: sign-inverted CPL switching between monomer and excimer regions under retention of the monomer emission for photoluminescence. Chem Commun (Camb) 2017; 53:6323-6326. [DOI: 10.1039/c7cc01351e] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The CPL of a chiral diamine can be switched between two regions under concomitant inversion of the handedness, while a strong PL intensity is maintained in the same region.
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Affiliation(s)
- Suguru Ito
- Department of Advanced Materials Chemistry
- Graduate School of Engineering
- YOKOHAMA National University
- Yokohama 240-8501
- Japan
| | - Kengo Ikeda
- Department of Advanced Materials Chemistry
- Graduate School of Engineering
- YOKOHAMA National University
- Yokohama 240-8501
- Japan
| | - Shoma Nakanishi
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Kindai University
- Osaka 577-8502
- Japan
| | - Yoshitane Imai
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Kindai University
- Osaka 577-8502
- Japan
| | - Masatoshi Asami
- Department of Advanced Materials Chemistry
- Graduate School of Engineering
- YOKOHAMA National University
- Yokohama 240-8501
- Japan
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12
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Neil ER, Fox MA, Pal R, Parker D. Induced europium CPL for the selective signalling of phosphorylated amino-acids and O-phosphorylated hexapeptides. Dalton Trans 2016; 45:8355-66. [DOI: 10.1039/c6dt01212d] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Circularly polarised luminescence signals selectively the binding of a range of chiral phosphorylated molecules.
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Affiliation(s)
| | - Mark A. Fox
- Department of Chemistry
- Durham University
- Durham
- UK
| | - Robert Pal
- Department of Chemistry
- Durham University
- Durham
- UK
| | - David Parker
- Department of Chemistry
- Durham University
- Durham
- UK
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13
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Frawley AT, Pal R, Parker D. Very bright, enantiopure europium(iii) complexes allow time-gated chiral contrast imaging. Chem Commun (Camb) 2016; 52:13349-13352. [DOI: 10.1039/c6cc07313a] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Chiral image contrast is reported with very bright enantiopure europium complexes that emit circularly polarized light.
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Affiliation(s)
| | - Robert Pal
- Department of Chemistry
- Durham University
- Durham DH1 3LE
- UK
| | - David Parker
- Department of Chemistry
- Durham University
- Durham DH1 3LE
- UK
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14
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Sy M, Nonat A, Hildebrandt N, Charbonnière LJ. Lanthanide-based luminescence biolabelling. Chem Commun (Camb) 2016; 52:5080-95. [DOI: 10.1039/c6cc00922k] [Citation(s) in RCA: 155] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Multiplexing, time-resolution, FRET…lanthanide-based biolabels reveal exceptional spectroscopic properties for bioanalytical applications.
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Affiliation(s)
- Mohamadou Sy
- Laboratoire d'Ingénierie Moléculaire Appliquée à l'Analyse
- IPHC
- UMR 7178 CNRS
- Université de Strasbourg
- ECPM
| | - Aline Nonat
- Laboratoire d'Ingénierie Moléculaire Appliquée à l'Analyse
- IPHC
- UMR 7178 CNRS
- Université de Strasbourg
- ECPM
| | - Niko Hildebrandt
- NanoBioPhotonics, Institut d'Electronique Fondamentale
- Université Paris-Saclay
- Université Paris-Sud
- CNRS
- Orsay
| | - Loïc J. Charbonnière
- Laboratoire d'Ingénierie Moléculaire Appliquée à l'Analyse
- IPHC
- UMR 7178 CNRS
- Université de Strasbourg
- ECPM
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15
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Ito H, Shinoda S. Chirality sensing and size recognition of N-Boc-amino acids by cage-type dimeric lanthanide complexes: chirality detection of N-Boc-aspartate anions via luminescence colour change. Chem Commun (Camb) 2015; 51:3808-11. [DOI: 10.1039/c4cc10384j] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mixture of chiral luminescent macrotricyclic-cyclen-Tb–Eu complexes enabled naked-eye discrimination of N-Boc-d- and l-aspartates via luminescence colour change.
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Affiliation(s)
- Hiroshi Ito
- Department of Chemistry
- Osaka City University and JST
- CREST
- Sumiyoshi-ku
- Japan
| | - Satoshi Shinoda
- Department of Chemistry
- Osaka City University and JST
- CREST
- Sumiyoshi-ku
- Japan
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16
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Neil ER, Fox MA, Pal R, Pålsson LO, O'Sullivan BA, Parker D. Chiral probe development for circularly polarised luminescence: comparative study of structural factors determining the degree of induced CPL with four heptacoordinate europium(iii) complexes. Dalton Trans 2015. [DOI: 10.1039/c5dt02358k] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Induced CPL signatures arising from the reversible binding of chiral carboxylates allow their absolute configuration and enantiomeric purity to be assessed.
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Affiliation(s)
| | - Mark A. Fox
- Department of Chemistry
- Durham University
- Durham
- UK
| | - Robert Pal
- Department of Chemistry
- Durham University
- Durham
- UK
| | | | | | - David Parker
- Department of Chemistry
- Durham University
- Durham
- UK
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17
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Butler SJ, Delbianco M, Lamarque L, McMahon BK, Neil ER, Pal R, Parker D, Walton JW, Zwier JM. EuroTracker® dyes: design, synthesis, structure and photophysical properties of very bright europium complexes and their use in bioassays and cellular optical imaging. Dalton Trans 2015; 44:4791-803. [DOI: 10.1039/c4dt02785j] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The creation of the most emissive series of europium complexes is traced and examples given of their use in imaging.
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Affiliation(s)
| | | | | | | | - Emily R. Neil
- Department of Chemistry
- Durham University
- Durham DH1 3LE
- UK
| | - Robert Pal
- Department of Chemistry
- Durham University
- Durham DH1 3LE
- UK
| | - David Parker
- Department of Chemistry
- Durham University
- Durham DH1 3LE
- UK
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18
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Kotova O, Blasco S, Twamley B, O'Brien J, Peacock RD, Kitchen JA, Martínez-Calvo M, Gunnlaugsson T. The application of chiroptical spectroscopy (circular dichroism) in quantifying binding events in lanthanide directed synthesis of chiral luminescent self-assembly structures. Chem Sci 2014; 6:457-471. [PMID: 28936303 PMCID: PMC5588118 DOI: 10.1039/c4sc02474e] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Accepted: 10/10/2014] [Indexed: 12/11/2022] Open
Abstract
The binding of asymmetrical and optically pure tridentate ligands containing one carboxylic group and 2-naphthyl as an antenna to lanthanide ions was studied in CH3CN.
The binding of asymmetrical and optically pure tridentate ligands (L = 1(S) and 1(R)) containing one carboxylic group and 2-naphthyl as an antenna to lanthanide ions (M = La(iii) and Eu(iii)) was studied in CH3CN, showing the successive formation of M:L, M:L2 and M:L3 stoichiometric species in solution. The europium complexes EuL3 were also synthesised, structurally characterised and their photophysical properties probed in CH3OH and CH3CN. The changes in the chiroptical properties of both 1(S) and 1(R) were used (by circular dichroism (CD) spectroscopy) to monitor the formation of these chiral self-assemblies in solution. While circularly polarised luminescence (CPL) showed the formation of Eu(1(S))3 and Eu(1(R))3 as enantiomers, with high luminescence dissymmetry factors (glum), fitting the CD changes allowed for binding constants to be determined that were comparable to those seen in the analyses of absorbance and luminescence changes.
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Affiliation(s)
- Oxana Kotova
- School of Chemistry , Trinity Biomedical Sciences Institute , Trinity College Dublin , Dublin 2 , Ireland . ;
| | - Salvador Blasco
- School of Chemistry , Trinity Biomedical Sciences Institute , Trinity College Dublin , Dublin 2 , Ireland . ;
| | - Brendan Twamley
- School of Chemistry , Trinity Biomedical Sciences Institute , Trinity College Dublin , Dublin 2 , Ireland . ;
| | - John O'Brien
- School of Chemistry , Trinity Biomedical Sciences Institute , Trinity College Dublin , Dublin 2 , Ireland . ;
| | - Robert D Peacock
- School of Chemistry , University of Glasgow , Glasgow , G12 8QQ , Scotland , UK
| | - Jonathan A Kitchen
- School of Chemistry , Trinity Biomedical Sciences Institute , Trinity College Dublin , Dublin 2 , Ireland . ; .,Chemistry , University of Southampton , Southampton , SO17 1BJ , UK
| | - Miguel Martínez-Calvo
- School of Chemistry , Trinity Biomedical Sciences Institute , Trinity College Dublin , Dublin 2 , Ireland . ;
| | - Thorfinnur Gunnlaugsson
- School of Chemistry , Trinity Biomedical Sciences Institute , Trinity College Dublin , Dublin 2 , Ireland . ;
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19
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Delbianco M, Sadovnikova V, Bourrier E, Mathis G, Lamarque L, Zwier JM, Parker D. Bright, highly water-soluble triazacyclononane europium complexes to detect ligand binding with time-resolved FRET microscopy. Angew Chem Int Ed Engl 2014; 53:10718-22. [PMID: 25115848 DOI: 10.1002/anie.201406632] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Indexed: 11/08/2022]
Abstract
Luminescent europium complexes are used in a broad range of applications as a result of their particular emissive properties. The synthesis and application of bright, highly water-soluble, and negatively charged sulfonic- or carboxylic acid derivatives of para-substituted aryl-alkynyl triazacyclononane complexes are described. Introduction of the charged solubilizing moieties suppresses cellular uptake or adsorption to living cells making them applicable for labeling and performing assays on membrane receptors. These europium complexes are applied to monitor fluorescent ligand binding on cell-surface proteins with time-resolved Förster resonance energy transfer (TR-FRET) assays in plate-based format and using TR-FRET microscopy.
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Affiliation(s)
- Martina Delbianco
- Department of Chemistry, Durham University, South Road, DH1 3LE, Durham (UK)
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20
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Delbianco M, Sadovnikova V, Bourrier E, Mathis G, Lamarque L, Zwier JM, Parker D. Bright, Highly Water-Soluble Triazacyclononane Europium Complexes To Detect Ligand Binding with Time-Resolved FRET Microscopy. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406632] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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21
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Delbianco M, Lamarque L, Parker D. Synthesis of meta and para-substituted aromatic sulfonate derivatives of polydentate phenylazaphosphinate ligands: enhancement of the water solubility of emissive europium(iii) EuroTracker® dyes. Org Biomol Chem 2014; 12:8061-71. [DOI: 10.1039/c4ob01143k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The use of a trifluoroethyl ester group to protect sulfonic acid moieties is used in the synthesis of a short series of water-soluble, very bright europium(iii) complexes.
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Affiliation(s)
| | | | - David Parker
- Department of Chemistry
- Durham University
- Durham DH1 3LE, UK
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