1
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Cheung TL, Ju Z, Zhang W, Parker D, Deng R. Mechanistic Investigation of Sensitized Europium Luminescence: Excited State Dynamics and Luminescence Lifetime Thermometry. ACS APPLIED MATERIALS & INTERFACES 2024; 16:43933-43941. [PMID: 39135499 DOI: 10.1021/acsami.4c06899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
Fluorescent nanothermometers based on thermal-dependent lifetime have a significant advantage in biological imaging owing to their immunity toward scattering, absorption, and autofluorescence. In this study, we present the first example of a water-soluble europium complex ([L1Eu]-) that exhibits high sensitivity (1.2% K-1 at 298 K) based on a temperature-dependent lifetime in the millisecond time range. This complex and its analogues show considerable potential for organelle imaging. The mechanism behind this thermal-sensitive behavior has been extensively investigated using transient absorption spectroscopy and variable temperature time-resolved luminescence methods. A highly efficient ligand sensitization process and a thermally activated back energy transfer process have been demonstrated. This study bridges the gap in small molecule thermometers with lifetimes longer than 1 ms and provides guidance in ligand design for metal coordination complex thermometers.
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Affiliation(s)
- Tsz Lam Cheung
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong 999077, China
| | - Zhijie Ju
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Institute for Composites Science Innovation, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China
| | - Wenchao Zhang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Institute for Composites Science Innovation, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China
| | - David Parker
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong 999077, China
| | - Renren Deng
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Institute for Composites Science Innovation, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China
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2
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Khrapova KO, Volkov PA, Telezhkin AA, Albanov AI, Chupakhin ON, Trofimov BA. Catalyst- and solvent-free regiospecific S NHAr phosphinylation of pyridines with H-phosphinates mediated by benzoylphenylacetylene. Org Biomol Chem 2024; 22:5419-5427. [PMID: 38884371 DOI: 10.1039/d4ob00661e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
Pyridines undergo a facile SNHAr phosphinylation with H-phosphinates under catalyst- and solvent-free conditions (50-55 °C) in the presence of benzoylphenylacetylene to afford 4-phosphinylpyridines in up to 68% yield. In this reaction, benzoylphenylacetylene activates the pyridine ring by the formation of a 1,3(4)-dipolar complex, deprotonates H-phosphinates to generate P-centered anions and finally acts as an oxidizer, being eliminated from an intermediate ion pair. Terminal electron-deficient acetylenes (methyl propiolate and benzoylacetylene) are inefficient as mediators in the above SNHAr process.
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Affiliation(s)
- Kseniya O Khrapova
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St., Irkutsk 664033, Russian Federation.
| | - Pavel A Volkov
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St., Irkutsk 664033, Russian Federation.
| | - Anton A Telezhkin
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St., Irkutsk 664033, Russian Federation.
| | - Alexander I Albanov
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St., Irkutsk 664033, Russian Federation.
| | - Oleg N Chupakhin
- I.Ya. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22/20 S. Kovalevskoi/Akademicheskaya St., Ekaterinburg 620219, Russian Federation
| | - Boris A Trofimov
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St., Irkutsk 664033, Russian Federation.
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3
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De Rosa DF, Starck M, Parker D, Pal R. Unlocking same-sign CPL: solvent effects on spectral form and racemisation kinetics in nine-coordinate chiral europium(III) complexes. Chemistry 2023:e202303227. [PMID: 38078726 DOI: 10.1002/chem.202303227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Indexed: 12/22/2023]
Abstract
Understanding the factors that shape the circularly polarised luminescence (CPL) emission profiles of europium(III)-based CPL emitters to have specific sign properties, e. g. monosignate individual CPL transitions, is key to design novel complexes for applications ranging from advanced security inks to bio-probes for live cell imaging. In order to correlate structure and spectral characteristics, a photophysical and kinetic investigation has been conducted on a series of coordinatively saturated nine-coordinate europium(III) systems based on 1,4,7-triazacyclononane. We highlight that lanthanide emission is sensitive to changes in the ligand field by showing the linear dependence of total emission intensity ratios as a function of solvent polarity, for europium(III) complexes displaying an internal charge transfer (ICT) excited state. This sensitivity increases by a factor of 20 when studying changes in CPL spectra, rendering these complexes accurate probes of local polarity. Solvent polarity, solvent-specific effects, and the nature of the chromophores' coordinating donor atoms strongly influence the kinetic stability of europium(III) complexes with respect to enantiomer interconversion. Notably, we show that the choice of donor groups to coordinating to europium(III) and the nature and polarity of the solvent affects the rate of racemisation, leading to systems with very long half-lives at room temperature in non-polar media.
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Affiliation(s)
- Davide F De Rosa
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK
| | - Matthieu Starck
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK
| | - David Parker
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK
- Current address: Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong
| | - Robert Pal
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK
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4
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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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5
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Willis O, Petri F, De Rosa DF, Mandoli A, Pal R, Zinna F, Di Bari L. Two-Photon Circularly Polarized Luminescence of Chiral Eu Complexes. J Am Chem Soc 2023; 145:25170-25176. [PMID: 37937987 PMCID: PMC10683000 DOI: 10.1021/jacs.3c05957] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 10/17/2023] [Accepted: 10/18/2023] [Indexed: 11/09/2023]
Abstract
We report the synthesis of chiral lanthanide complexes with extended π conjugation for efficient circularly polarized luminescence (CPL) via two-photon excitation (2PE). The pyridine bis-oxazoline (PyBox) core provides the chiral Ln3+ environment, while the extension of the conjugated backbone through the pyridine 4-position with a phenylacetylene unit increases the two-photon absorption cross section. This work presents an important step toward the development of chiral systems displaying enhanced nonlinear optical properties, with potential applications in imaging and sensing, as well as in photodynamic therapy due to the selective excitation of molecules within a specific focal volume.
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Affiliation(s)
- Oliver
G. Willis
- Department
of Chemistry and Industrial Chemistry, University
of Pisa, via Moruzzi, 13, 56124 Pisa, Italy
| | - Filippo Petri
- Department
of Chemistry and Industrial Chemistry, University
of Pisa, via Moruzzi, 13, 56124 Pisa, Italy
| | - Davide F. De Rosa
- Department
of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K.
| | - Alessandro Mandoli
- Department
of Chemistry and Industrial Chemistry, University
of Pisa, via Moruzzi, 13, 56124 Pisa, Italy
| | - Robert Pal
- Department
of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K.
| | - Francesco Zinna
- Department
of Chemistry and Industrial Chemistry, University
of Pisa, via Moruzzi, 13, 56124 Pisa, Italy
| | - Lorenzo Di Bari
- Department
of Chemistry and Industrial Chemistry, University
of Pisa, via Moruzzi, 13, 56124 Pisa, Italy
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6
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Lengacher R, Martin KE, Śmiłowicz D, Esseln H, Lotlikar P, Grichine A, Maury O, Boros E. Targeted, Molecular Europium (III) Probes Enable Luminescence-Guided Surgery and 1 Photon Post-Surgical Luminescence Microscopy of Solid Tumors. J Am Chem Soc 2023; 145:24358-24366. [PMID: 37869897 PMCID: PMC10670433 DOI: 10.1021/jacs.3c09444] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Abstract
Discrete luminescent lanthanide complexes represent a potential alternative to organic chromophores due to their tunability of optical properties, insensitivity to photobleaching, and large pseudo-Stokes shifts. Previously, we demonstrated that the lack of depth penetration of UV excitation required to sensitize discrete terbium and europium complexes can be overcome using Cherenkov radiation emitted by clinically employed radioisotopes in situ. Here, we show that the second-generation europium complexes [Eu(III)(pcta-PEPA2)] and [Eu(III)(tacn-pic-PEPA2)] (Φ = 57% and 76%, respectively) lower the limit of detection (LoD) to 1 nmol in the presence of 10 μCi of Cherenkov emitting isotopes, 18F and 68Ga. Bifunctionalization provides access to cysteine-linked peptide conjugates with comparable brightness and LoD. The conjugate, [Eu(tacn-(pic-PSMA)-PEPA2)], displays high binding affinity to prostate-specific membrane antigen (PSMA)-expressing PC-3 prostate cancer cells in vitro and can be visualized in the membrane-bound state using confocal microscopy. Biodistribution studies with the [86Y][Y(III)(tacn-(pic-PSMA)-PEPA2)] analogue in a mouse xenograft model were employed to study pharmacokinetics. Systemic administration of the targeted Cherenkov emitter, [68Ga][Ga(III)(PSMA-617)], followed by intratumoral injection or topical application of 20 or 10 nmol [Eu(III)(tacn-(pic-PSMA)-PEPA2)], respectively, in live mice resulted in statistically significant signal enhancement using conventional small animal imaging (620 nm bandpass filter). Optical imaging informed successful tumor resection. Ex vivo imaging of the fixed tumor tissue with 1 and 2 photon excitation further reveals the accumulation of the administered Eu(III) complex in target tissues. This work represents a significant step toward the application of luminescent lanthanide complexes for optical imaging in a clinical setting.
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Affiliation(s)
- Raphael Lengacher
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Kirsten E Martin
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
| | - Dariusz Śmiłowicz
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Helena Esseln
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
| | - Piyusha Lotlikar
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
| | - Alexei Grichine
- Institute for Advanced Biosciences, Université Grenoble Alpes, Inserm U1209, CNRS, UMR 5309, Site Santé, Allée des Alpes, 38700 La Tronche, France
| | - Olivier Maury
- Université Lyon, ENS de Lyon, CNRS, Laboratoire de Chimie UMR 5182, F-69342 Lyon, France
| | - Eszter Boros
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
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7
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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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8
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Choi JH, Fremy G, Charnay T, Fayad N, Pécaut J, Erbek S, Hildebrandt N, Martel-Frachet V, Grichine A, Sénèque O. Luminescent Peptide/Lanthanide(III) Complex Conjugates with Push–Pull Antennas: Application to One- and Two-Photon Microscopy Imaging. Inorg Chem 2022; 61:20674-20689. [DOI: 10.1021/acs.inorgchem.2c03646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ji-Hyung Choi
- Université Grenoble Alpes, CNRS, CEA, IRIG, LCBM (UMR 5249), Grenoble F-38000, France
| | - Guillaume Fremy
- Université Grenoble Alpes, CNRS, CEA, IRIG, LCBM (UMR 5249), Grenoble F-38000, France
- Université Grenoble Alpes, CNRS, DCM (UMR 5250), Grenoble F-38000, France
| | - Thibault Charnay
- Université Grenoble Alpes, CNRS, CEA, IRIG, LCBM (UMR 5249), Grenoble F-38000, France
| | - Nour Fayad
- Laboratoire COBRA (Chimie Organique, Bioorganique, Réactivite et Analyse), UMR 6014, CNRS, Université de Rouen Normandie, INSA, Mont-Saint-Aignan Cedex 76821, France
| | - Jacques Pécaut
- Université Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, Grenoble F-38000, France
| | - Sule Erbek
- Institute for Advanced Biosciences, Université Grenoble Alpes, INSERM U1209, CNRS UMR 5309, Grenoble F-38000, France
- EPHE, PSL Research University, 4-14 Rue Ferrus, Paris 75014, France
| | - Niko Hildebrandt
- Laboratoire COBRA (Chimie Organique, Bioorganique, Réactivite et Analyse), UMR 6014, CNRS, Université de Rouen Normandie, INSA, Mont-Saint-Aignan Cedex 76821, France
| | - Véronique Martel-Frachet
- Institute for Advanced Biosciences, Université Grenoble Alpes, INSERM U1209, CNRS UMR 5309, Grenoble F-38000, France
- EPHE, PSL Research University, 4-14 Rue Ferrus, Paris 75014, France
| | - Alexei Grichine
- Institute for Advanced Biosciences, Université Grenoble Alpes, INSERM U1209, CNRS UMR 5309, Grenoble F-38000, France
| | - Olivier Sénèque
- Université Grenoble Alpes, CNRS, CEA, IRIG, LCBM (UMR 5249), Grenoble F-38000, France
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9
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Synthesis of alkyl-H-phosphinic acid alkyl esters from red phosphorus and alkyl bromides. MENDELEEV COMMUNICATIONS 2022. [DOI: 10.1016/j.mencom.2022.11.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Fagnani F, Colombo A, Malandrino G, Dragonetti C, Pellegrino AL. Luminescent 1,10-Phenanthroline β-Diketonate Europium Complexes with Large Second-Order Nonlinear Optical Properties. Molecules 2022; 27:molecules27206990. [PMID: 36296583 PMCID: PMC9610016 DOI: 10.3390/molecules27206990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/11/2022] [Accepted: 10/14/2022] [Indexed: 11/16/2022] Open
Abstract
Substitution of the diglyme ligand of [Eu(hfa)3(diglyme)] (where hfa is hexafluoroacetylacetonate) with a simple 1,10-phenanthroline leads to a six-fold increase of the product μβEFISH, as measured by the Electric-Field-Induced Second Harmonic generation (EFISH) technique. Similarly, [Eu(tta)3(1,10-phenanthroline)] (where Htta is 2-thenoyltrifluoroacetone) is characterized by a large second-order NLO response. Both 1,10-phenanthroline europium complexes have great potential as multifunctional materials for photonics.
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Affiliation(s)
- Francesco Fagnani
- Dipartimento di Chimica, Università di Milano and INSTM UdR Milano, 20126 Milan, Italy
| | - Alessia Colombo
- Dipartimento di Chimica, Università di Milano and INSTM UdR Milano, 20126 Milan, Italy
| | - Graziella Malandrino
- Dipartimento di Scienze Chimiche, Università di Catania and INSTM UdR Catania, 95125 Catania, Italy
| | - Claudia Dragonetti
- Dipartimento di Chimica, Università di Milano and INSTM UdR Milano, 20126 Milan, Italy
| | - Anna Lucia Pellegrino
- Dipartimento di Scienze Chimiche, Università di Catania and INSTM UdR Catania, 95125 Catania, Italy
- Correspondence: ; Tel.: +39-095-7385011
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11
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Danaf NA, Kretzschmar J, Jahn B, Singer H, Pol A, Op den Camp HJM, Steudtner R, Lamb DC, Drobot B, Daumann LJ. Studies of pyrroloquinoline quinone species in solution and in lanthanide-dependent methanol dehydrogenases. Phys Chem Chem Phys 2022; 24:15397-15405. [PMID: 35704886 DOI: 10.1039/d2cp00311b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pyrroloquinoline quinone (PQQ) is a redox cofactor in calcium- and lanthanide-dependent alcohol dehydrogenases that has been known and studied for over 40 years. Despite its long history, many questions regarding its fluorescence properties, speciation in solution and in the active site of alcohol dehydrogenase remain open. Here we investigate the effects of pH and temperature on the distribution of different PQQ species (H3PQQ to PQQ3- in addition to water adducts and in complex with lanthanides) with NMR and UV-Vis spectroscopy as well as time-resolved laser-induced fluorescence spectroscopy (TRLFS). Using a europium derivative from a new, recently-discovered class of lanthanide-dependent methanol dehydrogenase (MDH) enzymes, we utilized two techniques to monitor Ln binding to the active sites of these enzymes. Employing TRLFS, we were able to follow Eu(III) binding directly to the active site of MDH using its luminescence and could quantify three Eu(III) states: Eu(III) in the active site of MDH, but also in solution as PQQ-bound Eu(III) and in the aquo-ion form. Additionally, we used the antenna effect to study PQQ and simultaneously Eu(III) in the active site.
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Affiliation(s)
- Nader Al Danaf
- Department of Chemistry, Ludwig-Maximilians-University Munich, Butenandtstraße 5 - 13, 81377 München, Germany. .,Center for NanoScience, Ludwig-Maximilians-University Munich, Geschwister-Scholl Platz 1, 80539 München, Germany
| | - Jerome Kretzschmar
- Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf e.V., Bautzner Landstraße 400, 01328 Dresden, Germany.
| | - Berenice Jahn
- Department of Chemistry, Ludwig-Maximilians-University Munich, Butenandtstraße 5 - 13, 81377 München, Germany.
| | - Helena Singer
- Department of Chemistry, Ludwig-Maximilians-University Munich, Butenandtstraße 5 - 13, 81377 München, Germany.
| | - Arjan Pol
- Department of Microbiology, Radboud University, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - Huub J M Op den Camp
- Department of Microbiology, Radboud University, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - Robin Steudtner
- Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf e.V., Bautzner Landstraße 400, 01328 Dresden, Germany.
| | - Don C Lamb
- Department of Chemistry, Ludwig-Maximilians-University Munich, Butenandtstraße 5 - 13, 81377 München, Germany. .,Center for NanoScience, Ludwig-Maximilians-University Munich, Geschwister-Scholl Platz 1, 80539 München, Germany
| | - Björn Drobot
- Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf e.V., Bautzner Landstraße 400, 01328 Dresden, Germany.
| | - Lena J Daumann
- Department of Chemistry, Ludwig-Maximilians-University Munich, Butenandtstraße 5 - 13, 81377 München, Germany.
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12
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Kofod N, Nawrocki P, Sørensen TJ. Arel: Investigating [Eu(H 2O) 9] 3+ Photophysics and Creating a Method to Bypass Luminescence Quantum Yield Determinations. J Phys Chem Lett 2022; 13:3096-3104. [PMID: 35357175 DOI: 10.1021/acs.jpclett.2c00418] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Lanthanide luminescence has been treated separate from molecular photophysics, although the underlying phenomena are the same. As the optical transitions observed in the trivalent lanthanide ions are forbidden, they do belong to the group that molecular photophysics has yet to conquer, yet the experimental descriptors remain valid. Herein, the luminescence quantum yields (ϕlum), luminescence lifetimes (τobs), oscillator strengths (f), and the rates of nonradiative (knr) and radiative (kr ≡ A) deactivation of [Eu(H2O)9]3+ were determined. Further, it was shown that instead of a full photophysical characterization, it is possible to relate changes in transition probabilities to the relative parameter Arel, which does not require reference data. While Arel does not afford comparisons between experiments, it resolves emission intensity changes due to emitter properties from intensity changes due to environmental effects and differences in the number of photons absorbed. When working with fluorescence this may seem trivial; when working with lanthanide luminescence it is not.
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Affiliation(s)
- Nicolaj Kofod
- Department of Chemistry & Nano-Science Center, University of Copenhagen, Universitetsparken 5, 2100 København Ø, Denmark
| | - Patrick Nawrocki
- Department of Chemistry & Nano-Science Center, University of Copenhagen, Universitetsparken 5, 2100 København Ø, Denmark
| | - Thomas Just Sørensen
- Department of Chemistry & Nano-Science Center, University of Copenhagen, Universitetsparken 5, 2100 København Ø, Denmark
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13
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Parker D, Fradgley JD, Delbianco M, Starck M, Walton JW, Zwier JM. Comparative analysis of lanthanide excited state quenching by electronic energy and electron transfer processes. Faraday Discuss 2022; 234:159-174. [PMID: 35147141 DOI: 10.1039/d1fd00059d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The relative sensitivities of structurally related Eu(III) complexes to quenching by electron and energy transfer processes have been compared. In two sets of 9-coordinate complexes based on 1,4,7-triazacyclononane, the Eu emission lifetime decreased as the number of conjugated sensitising groups and the number of unbound ligand N atoms increased, consistent with photoinduced electron transfer to the excited Eu(III) ion that is suppressed by N-protonation. Quenching of the Eu 5D0 excited state may also occur by electronic energy transfer, and the quenching of a variety of 9-coordinate complexes by a cyanine dye with optimal spectral overlap occurs by an efficient FRET process, defined by a Förster radius (R0) value of 68 Å and characterised by second rate constants in the order of 109 M-1 s-1; these values were insensitive to changes in the ligand structure and to the overall complex hydrophilicity. Quenching of the Eu and Tb excited states by energy transfer to Mn(II) and Cu(II) aqua ions occurred over much shorter distances, with rate constants of around 106 M-1 s-1, owing to the much lower spectral overlap integral. The calculated R0 values were estimated to be between 2.5 to 4 Å in the former case, suggesting the presence of a Dexter energy transfer mechanism that requires much closer contact, consistent with the enhanced sensitivity of the rate of quenching to the degree of steric shielding of the lanthanide ion provided by the ligand.
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Affiliation(s)
- David Parker
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK. .,Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong
| | - Jack D Fradgley
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
| | - Martina Delbianco
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
| | - Matthieu Starck
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
| | - James W Walton
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
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14
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Leygue N, Picard C, Faure P, Bourrier E, Lamarque L, Zwier JM, Galaup C. Design of novel tripyridinophane-based Eu(III) complexes as efficient luminescent labels for bioassay applications. Org Biomol Chem 2021; 20:182-195. [PMID: 34878481 DOI: 10.1039/d1ob02092g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In this work, the development of highly luminescent europium(III) complexes in water solution is reported, including their syntheses, analyses of their photophysical properties and applications in bioassays. Three Eu(III) complexes are derived from new ligands based on a tripyridinophane platform. There are four distinct sections in the structure of these ligands: an 18-membered polyaminocarboxylic macrocycle to bind efficiently lanthanide ions in aqueous solutions, three chromophoric subunits (4-(phenylethynyl)pyridine moieties) to effectively sensitize the emission of the metal, two peripheral moieties to solubilise the complex in aqueous media (sulfonate, sulfobetaine or glucose groups) and a free NH2 group available for grafting or bioconjugation. In our synthetic procedure, a pivotal macrocyclic platform is obtained with a high yield in the crucial macrocyclization step due to a metal template ion effect (74% yield). In Tris aqueous buffer (pH 7.4), the Eu(III) complexes show a maximum excitation wavelength at 320 nm, a suitable overall quantum yield (14%), a relatively long lifetime (0.80 ms) and a one-photon brightness in the range of 10 000 M-1 cm-1. Importantly, these photophysical properties are retained at dilute concentrations, even in the presence of a very large excess of potentially competing species, such as EDTA or Mg2+ ions. Furthermore, we report the bioconjugation of a Eu(III) complex labelled by an N-hydroxysuccinimide ester reactive group with an antibody (anti-glutathione-S-transferase) and the successful application of the corresponding antibody conjugate in the detection of GST-biotin in a fluoroimmunoassay. These new complexes provide a solution for high sensitivity in Homogeneous Time-Resolved Fluorescence (HTRF®) bioassays.
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Affiliation(s)
- Nadine Leygue
- SPCMIB, UMR5068 CNRS-Université Paul Sabatier-Toulouse III, 118 Route de Narbonne, F-31062 Toulouse, France.
| | - Claude Picard
- SPCMIB, UMR5068 CNRS-Université Paul Sabatier-Toulouse III, 118 Route de Narbonne, F-31062 Toulouse, France.
| | - Pamela Faure
- Cisbio Bioassays, BP 84175, 30200 Codolet, France.
| | | | | | | | - Chantal Galaup
- SPCMIB, UMR5068 CNRS-Université Paul Sabatier-Toulouse III, 118 Route de Narbonne, F-31062 Toulouse, France.
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15
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Wu S, Galán LA, Roux M, Riobé F, Le Guennic B, Guyot Y, Le Bahers T, Micouin L, Maury O, Benedetti E. Tuning Excited-State Properties of [2.2]Paracyclophane-Based Antennas to Ensure Efficient Sensitization of Lanthanide Ions or Singlet Oxygen Generation. Inorg Chem 2021; 60:16194-16203. [PMID: 34637309 DOI: 10.1021/acs.inorgchem.1c01986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The multistep synthesis of original antennas incorporating substituted [2.2]paracyclophane (pCp) moieties in the π-conjugated skeleton is described. These antennas, functionalized with an electron donor alkoxy fragment (A1) or with a fused coumarin derivative (A2), are incorporated in a triazacyclonane macrocyclic ligand L1 or L2, respectively, for the design of Eu(III), Yb(III), and Gd(III) complexes. A combined photophysical/theoretical study reveals that A1 presents a charge transfer character via through-space paracyclophane conjugation, whereas A2 presents only local excited states centered on the coumarin-paracyclophane moiety, strongly favoring triplet state population via intersystem crossing. The resulting complexes EuL1 and YbL2 are fully emissive in red and near-infrared, respectively, whereas the GdL2 complex acts as a photosensitizer for the generation of singlet oxygen.
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Affiliation(s)
- Shiqi Wu
- Univ Paris, Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR 8601, 45 Rue des Saints Pères, 75006 Paris, France
| | - Laura Abad Galán
- Univ Lyon, ENS de Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5182, Laboratoire de Chimie, Lyon F-69342, France
| | - Margaux Roux
- Univ Lyon, ENS de Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5182, Laboratoire de Chimie, Lyon F-69342, France
| | - François Riobé
- Univ Lyon, ENS de Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5182, Laboratoire de Chimie, Lyon F-69342, France
| | - Boris Le Guennic
- Univ Rennes, ISCR (Institut des Sciences Chimiques de Rennes), CNRS UMR 6226, F-35000 Rennes, France
| | - Yannick Guyot
- Univ Lyon, Institut Lumière Matière, Université Claude Bernard Lyon 1, CNRS UMR 5306, 10 Rue Ada Byron, 69622 Villeurbanne Cedex, France
| | - Tangui Le Bahers
- Univ Lyon, ENS de Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5182, Laboratoire de Chimie, Lyon F-69342, France
| | - Laurent Micouin
- Univ Paris, Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR 8601, 45 Rue des Saints Pères, 75006 Paris, France
| | - Olivier Maury
- Univ Lyon, ENS de Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5182, Laboratoire de Chimie, Lyon F-69342, France
| | - Erica Benedetti
- Univ Paris, Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR 8601, 45 Rue des Saints Pères, 75006 Paris, France
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16
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Algar WR, Massey M, Rees K, Higgins R, Krause KD, Darwish GH, Peveler WJ, Xiao Z, Tsai HY, Gupta R, Lix K, Tran MV, Kim H. Photoluminescent Nanoparticles for Chemical and Biological Analysis and Imaging. Chem Rev 2021; 121:9243-9358. [PMID: 34282906 DOI: 10.1021/acs.chemrev.0c01176] [Citation(s) in RCA: 123] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Research related to the development and application of luminescent nanoparticles (LNPs) for chemical and biological analysis and imaging is flourishing. Novel materials and new applications continue to be reported after two decades of research. This review provides a comprehensive and heuristic overview of this field. It is targeted to both newcomers and experts who are interested in a critical assessment of LNP materials, their properties, strengths and weaknesses, and prospective applications. Numerous LNP materials are cataloged by fundamental descriptions of their chemical identities and physical morphology, quantitative photoluminescence (PL) properties, PL mechanisms, and surface chemistry. These materials include various semiconductor quantum dots, carbon nanotubes, graphene derivatives, carbon dots, nanodiamonds, luminescent metal nanoclusters, lanthanide-doped upconversion nanoparticles and downshifting nanoparticles, triplet-triplet annihilation nanoparticles, persistent-luminescence nanoparticles, conjugated polymer nanoparticles and semiconducting polymer dots, multi-nanoparticle assemblies, and doped and labeled nanoparticles, including but not limited to those based on polymers and silica. As an exercise in the critical assessment of LNP properties, these materials are ranked by several application-related functional criteria. Additional sections highlight recent examples of advances in chemical and biological analysis, point-of-care diagnostics, and cellular, tissue, and in vivo imaging and theranostics. These examples are drawn from the recent literature and organized by both LNP material and the particular properties that are leveraged to an advantage. Finally, a perspective on what comes next for the field is offered.
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Affiliation(s)
- W Russ Algar
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Melissa Massey
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Kelly Rees
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Rehan Higgins
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Katherine D Krause
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Ghinwa H Darwish
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - William J Peveler
- School of Chemistry, Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, U.K
| | - Zhujun Xiao
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Hsin-Yun Tsai
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Rupsa Gupta
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Kelsi Lix
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Michael V Tran
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Hyungki Kim
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
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17
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Abad‐Galán L, Cieslik P, Comba P, Gast M, Maury O, Neupert L, Roux A, Wadepohl H. Excited State Properties of Lanthanide(III) Complexes with a Nonadentate Bispidine Ligand. Chemistry 2021; 27:10303-10312. [PMID: 33780569 PMCID: PMC8360039 DOI: 10.1002/chem.202005459] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Indexed: 12/03/2022]
Abstract
EuIII , TbIII , GdIII and YbIII complexes of the nonadentate bispidine derivative L2 (bispidine=3,7-diazabicyclo[3.3.1]nonane) were successfully synthesized and their emission properties studied. The X-ray crystallography reveals full encapsulation by the nonadentate ligand L2 that enforces to all LnIII cations a common highly symmetrical capped square antiprismatic (CSAPR) coordination geometry (pseudo C4v symmetry). The well-resolved identical emission spectra in solid state and in solution confirm equal structures in both media. As therefore expected, this results in long-lived excited states and high emission quantum yields ([EuIII L2 ]+ , H2 O, 298 K, τ=1.51 ms, ϕ=0.35; [TbIII L2 ]+ , H2 O, 298 K, τ=1.95 ms, ϕ=0.68). Together with the very high kinetic and thermodynamic stabilities, these complexes are a possible basis for interesting biological probes.
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Affiliation(s)
- Laura Abad‐Galán
- Université de LyonENS de LyonLaboratoire de ChimieCNRS UMR 5182Université Claude Bernard Lyon 169342LyonFrance
| | - Patrick Cieslik
- Universität HeidelbergAnorganisch-Chemisches InstitutINF 27069120HeidelbergGermany
| | - Peter Comba
- Universität HeidelbergAnorganisch-Chemisches InstitutINF 27069120HeidelbergGermany
- Universität HeidelbergInterdisciplinary Center for Scientific Computing69120HeidelbergGermany
| | - Michael Gast
- Universität HeidelbergAnorganisch-Chemisches InstitutINF 27069120HeidelbergGermany
| | - Olivier Maury
- Université de LyonENS de LyonLaboratoire de ChimieCNRS UMR 5182Université Claude Bernard Lyon 169342LyonFrance
| | - Lucca Neupert
- Universität HeidelbergAnorganisch-Chemisches InstitutINF 27069120HeidelbergGermany
| | - Amandine Roux
- Université de LyonENS de LyonLaboratoire de ChimieCNRS UMR 5182Université Claude Bernard Lyon 169342LyonFrance
| | - Hubert Wadepohl
- Universität HeidelbergAnorganisch-Chemisches InstitutINF 27069120HeidelbergGermany
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18
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Martin KE, Cosby AG, Boros E. Multiplex and In Vivo Optical Imaging of Discrete Luminescent Lanthanide Complexes Enabled by In Situ Cherenkov Radiation Mediated Energy Transfer. J Am Chem Soc 2021; 143:9206-9214. [PMID: 34114809 DOI: 10.1021/jacs.1c04264] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Recently, we pioneered the application of Cherenkov radiation (CR) of radionuclides for the in situ excitation of discrete Eu(III) and Tb(III) complexes. CR is produced by isotopes decaying under emission of charged particles in dielectric media and exhibits a maximum intensity below 400 nm. We have demonstrated that luminescent lanthanide antenna complexes are ideal acceptors for Cherenkov radiation-mediated energy transfer (CRET). Here, we develop and assess peptide-functionalized Tb(III) and Eu(III) complexes in conjunction with CRET excitation by the positron emissive radioisotope 18F for simultaneous, multiplexed imaging and in vivo optical imaging. This work demonstrates, for the first time, that the detection of the luminescence emission of a discrete Eu(III) complex in vivo is feasible. Our results open possibilities for discrete luminescent lanthanide complexes to be used as diagnostic, optical tools for the intrasurgical guidance of tumor resection.
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Affiliation(s)
- Kirsten E Martin
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
| | - Alexia G Cosby
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
| | - Eszter Boros
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
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19
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Parker D, Fradgley JD, Wong KL. The design of responsive luminescent lanthanide probes and sensors. Chem Soc Rev 2021; 50:8193-8213. [PMID: 34075982 DOI: 10.1039/d1cs00310k] [Citation(s) in RCA: 110] [Impact Index Per Article: 36.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The principles of the design of responsive luminescent probes and sensors based on lanthanide emission are summarised, based on a mechanistic understanding of their mode of action. Competing kinetic pathways for deactivation of the excited states that occur are described, highlighting the need to consider each of the salient quenching processes. Such an analysis dictates the choice of both the ligand and its integral sensitising moiety for the particular application. The key aspects of quenching involving electron transfer and vibrational and electronic energy transfer are highlighted and exemplified. Responsive systems for pH, pM, pX and pO2 and selected biochemical analytes are distinguished, according to the nature of the optical signal observed. Signal changes include both simple and ratiometric intensity measurements, emission lifetime variations and the unique features associated with the observation of circularly polarised luminescence (CPL) for chiral systems. A classification of responsive lanthanide probes is introduced. Examples of the operation of probes for reactive oxygen species, citrate, bicarbonate, α1-AGP and pH are used to illustrate reversible and irreversible transformations of the ligand constitution, as well as the reversible changes to the metal primary and secondary coordination sphere that sensitively perturb the ligand field. Finally, systems that function by modulation of dynamic quenching of the ligand or metal excited states are described, including real time observation of endosomal acidification in living cells, rapid urate analysis in serum, accurate temperature assessment in confined compartments and high throughput screening of drug binding to G-protein coupled receptors.
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Affiliation(s)
- David Parker
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
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20
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Kovacs D, Kocsi D, Wells JAL, Kiraev SR, Borbas KE. Electron transfer pathways in photoexcited lanthanide(iii) complexes of picolinate ligands. Dalton Trans 2021; 50:4244-4254. [PMID: 33688904 DOI: 10.1039/d1dt00616a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A series of luminescent lanthanide(iii) complexes consisting of 1,4,7-triazacyclononane frameworks and three secondary amide-linked carbostyril antennae were synthesised. The metal binding sites were augmented with two pyridylcarboxylate donors yielding octadentate ligands. The antennae carried methyl, methoxymethyl or trifluoromethyl substituents in their 4-positions, allowing for a range of excited state energies and antenna electronic properties. The 1H NMR spectra of the Eu(iii) complexes were found to be analogous to each other. Similar results were obtained in the solid-state by single-crystal X-ray crystallography, which showed the structures to have nine-coordinate metal ions with heavily distorted tricapped trigonal prismatic geometries. Steady-state and time-resolved luminescence spectroscopy showed that the antennae could sensitize both Tb(iii) and Eu(iii), however, quantum yields were lower than in other octadentate complexes lacking pyridylcarboxylate. Complexes with more electron-poor pyridines were less emissive even when equipped with the same antenna. The oxidation and reduction potentials of the antennae and the pyridinecarboxylates, respectively, were determined by cyclic voltammetry. The obtained values were consistent with electron transfer from the excited antenna to the pyridine providing a previously unexplored quenching pathway that could efficiently compete with energy transfer to the lanthanide. These results show the crucial impact that photophysically innocent ligand binding sites can have on lanthanide luminescence.
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Affiliation(s)
- Daniel Kovacs
- Department of Chemistry, Ångström Laboratory, Box 523, Uppsala University, 75120, Uppsala, Sweden.
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21
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Design and Synthesis of Luminescent Lanthanide-Based Bimodal Nanoprobes for Dual Magnetic Resonance (MR) and Optical Imaging. NANOMATERIALS 2021; 11:nano11020354. [PMID: 33535481 PMCID: PMC7912730 DOI: 10.3390/nano11020354] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 01/21/2021] [Accepted: 01/22/2021] [Indexed: 12/20/2022]
Abstract
Current biomedical imaging techniques are crucial for the diagnosis of various diseases. Each imaging technique uses specific probes that, although each one has its own merits, do not encompass all the functionalities required for comprehensive imaging (sensitivity, non-invasiveness, etc.). Bimodal imaging methods are therefore rapidly becoming an important topic in advanced healthcare. This bimodality can be achieved by successive image acquisitions involving different and independent probes, one for each mode, with the risk of artifacts. It can be also achieved simultaneously by using a single probe combining a complete set of physical and chemical characteristics, in order to record complementary views of the same biological object at the same time. In this scenario, and focusing on bimodal magnetic resonance imaging (MRI) and optical imaging (OI), probes can be engineered by the attachment, more or less covalently, of a contrast agent (CA) to an organic or inorganic dye, or by designing single objects containing both the optical emitter and MRI-active dipole. If in the first type of system, there is frequent concern that at some point the dye may dissociate from the magnetic dipole, it may not in the second type. This review aims to present a summary of current activity relating to this kind of dual probes, with a special emphasis on lanthanide-based luminescent nano-objects.
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22
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Ma H, Chen K, Song B, Tang Z, Huang Y, Zhang T, Wang H, Sun W, Yuan J. A visible-light-excitable mitochondria-targeted europium complex probe for hypochlorous acid and its application to time-gated luminescence bioimaging. Biosens Bioelectron 2020; 168:112560. [PMID: 32890933 DOI: 10.1016/j.bios.2020.112560] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 06/27/2020] [Accepted: 08/24/2020] [Indexed: 12/15/2022]
Abstract
Development of fluorescent/luminescent probes for rapid, selective and sensitive detection of reactive oxygen species (ROS) is of great significance for understanding the roles of ROS in pathophysiological processes. In the present research, a visible-light-excitable Eu3+ complex-based probe, Eu(L)3(DPBT), is designed and synthesized for the time-gated luminescence (TGL) determination of hypochlorous acid (HClO) in vitro and in vivo. The proposed probe exhibits a rapid, selective and sensitive TGL response to HClO, and excellent localization of mitochondria in living cells with low cytotoxicity. These features allow the probe to be used for the TGL sensing and imaging of HClO formation in mimic inflammatory cells at a subcellular level, as well as in endotoxin-induced liver injury and rheumatoid arthritis in live mice. In addition, by immobilizing the probe in the PEG hydrogel, the smart sensor films with rapid response to HClO were prepared, and successfully used for the real-time monitoring of HClO generation in mouse wounds, in order to distinguish the infected wounds from acute ones. Overall, this study provides a useful tool for the clinical monitoring and treatment of wound diseases.
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Affiliation(s)
- Hua Ma
- State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Kaiwen Chen
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Bo Song
- State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, 116024, China.
| | - Zhixin Tang
- State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Yundi Huang
- State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Ting Zhang
- Department of Pathophysiology, Dalian Medical University, Dalian, 116044, China
| | - Huanan Wang
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Wenping Sun
- Department of Pathophysiology, Dalian Medical University, Dalian, 116044, China
| | - Jingli Yuan
- State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, 116024, China.
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23
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De Rosa C, Melchior A, Sanadar M, Tolazzi M, Giorgetti A, Ribeiro RP, Nardon C, Piccinelli F. Effect of the Heteroaromatic Antenna on the Binding of Chiral Eu(III) Complexes to Bovine Serum Albumin. Inorg Chem 2020; 59:12564-12577. [PMID: 32806003 PMCID: PMC8009522 DOI: 10.1021/acs.inorgchem.0c01663] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
The cationic enantiopure
(R,R) and luminescent Eu(III) complex [Eu(bisoQcd)(H2O)2] OTf (with bisoQcd = N,N′-bis(2-isoquinolinmethyl)-trans-1,2-diaminocyclohexane N,N′-diacetate and OTf = triflate) was synthesized
and characterized. At physiological pH, the 1:1 [Eu(bisoQcd)(H2O)2]+ species, possessing
two water molecules in the inner coordination sphere, is largely dominant.
The interaction with bovine serum albumin (BSA) was studied by means
of several experimental techniques, such as luminescence spectroscopy,
isothermal titration calorimetry (ITC), molecular docking (MD), and
molecular dynamics simulations (MDS). In this direction, a ligand
competition study was also performed by using three clinically established
drugs (i.e., ibuprofen, warfarin, and digitoxin). The nature of this
interaction is strongly affected by the type of the involved heteroaromatic
antenna in the Eu(III) complexes. In fact, the presence of isoquinoline rings drives the corresponding complex toward
the protein superficial area containing the tryptophan residue 134
(Trp134). As the main consequence, the metal center undergoes the
loss of one water molecule upon interaction with the side chain of
a glutamic acid residue. On the other hand, the similar complex containing
pyridine rings ([Eu(bpcd)(H2O)2]Cl with bpcd
= N,N′-bis(2-pyridylmethyl)-trans-1,2-diaminocyclohexane N,N′-diacetate) interacts more weakly with the protein
in a different superficial cavity, without losing the coordinated
water molecules. The effect
of the antenna moiety on the interaction of two new luminescent Eu(III)
complexes with BSA was studied. Results show that the complexes can
be conveniently exploited as optical probes for albumin serum proteins
by means of opposite mechanisms (switch-on−off of the luminescent
signal).
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Affiliation(s)
- Chiara De Rosa
- Luminescent Materials Laboratory, Department of Biotechnology, University of Verona and INSTM - UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Andrea Melchior
- Laboratory of Chemical Technologies, Polytechnic Department of Engineering and Architecture, University of Udine, via Cotonificio 108, 33100 Udine, Italy
| | - Martina Sanadar
- Laboratory of Chemical Technologies, Polytechnic Department of Engineering and Architecture, University of Udine, via Cotonificio 108, 33100 Udine, Italy
| | - Marilena Tolazzi
- Laboratory of Chemical Technologies, Polytechnic Department of Engineering and Architecture, University of Udine, via Cotonificio 108, 33100 Udine, Italy
| | - Alejandro Giorgetti
- Applied Bioinformatics Laboratory, Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Rui P Ribeiro
- Applied Bioinformatics Laboratory, Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Chiara Nardon
- Luminescent Materials Laboratory, Department of Biotechnology, University of Verona and INSTM - UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Fabio Piccinelli
- Luminescent Materials Laboratory, Department of Biotechnology, University of Verona and INSTM - UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy
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Nizou G, Favaretto C, Borgna F, Grundler PV, Saffon-Merceron N, Platas-Iglesias C, Fougère O, Rousseaux O, van der Meulen NP, Müller C, Beyler M, Tripier R. Expanding the Scope of Pyclen-Picolinate Lanthanide Chelates to Potential Theranostic Applications. Inorg Chem 2020; 59:11736-11748. [DOI: 10.1021/acs.inorgchem.0c01664] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Gwladys Nizou
- Univ. Brest, UMR CNRS 6521 CEMCA, 6 avenue Le Gorgeu, CS93837, 29200 Brest, France
| | - Chiara Favaretto
- Center for Radiopharmaceutical Sciences, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen-PSI, Switzerland
- Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
| | - Francesca Borgna
- Center for Radiopharmaceutical Sciences, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen-PSI, Switzerland
| | - Pascal V. Grundler
- Center for Radiopharmaceutical Sciences, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen-PSI, Switzerland
| | - Nathalie Saffon-Merceron
- Service commun Rayons X ICT-FR2599, Université Paul Sabatier, Bâtiment 2R1, 118 route de Narbonne, 31062 Toulouse, Cedex 09, France
| | - Carlos Platas-Iglesias
- Departamento de Química, Facultade de Ciencias & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, 15071 A Coruña, Spain
| | - Olivier Fougère
- Guerbet group, Centre de Recherche d’Aulnay-sous-Bois, BP 57400, 95943 Roissy CdG, Cedex, France
| | - Olivier Rousseaux
- Guerbet group, Centre de Recherche d’Aulnay-sous-Bois, BP 57400, 95943 Roissy CdG, Cedex, France
| | - Nicholas P. van der Meulen
- Center for Radiopharmaceutical Sciences, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen-PSI, Switzerland
- Laboratory of Radiochemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen-PSI, Switzerland
| | - Cristina Müller
- Center for Radiopharmaceutical Sciences, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen-PSI, Switzerland
- Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
| | - Maryline Beyler
- Univ. Brest, UMR CNRS 6521 CEMCA, 6 avenue Le Gorgeu, CS93837, 29200 Brest, France
| | - Raphaël Tripier
- Univ. Brest, UMR CNRS 6521 CEMCA, 6 avenue Le Gorgeu, CS93837, 29200 Brest, France
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25
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Peng XX, Zhu XF, Zhang JL. Near Infrared (NIR) imaging: Exploring biologically relevant chemical space for lanthanide complexes. J Inorg Biochem 2020; 209:111118. [PMID: 32502875 DOI: 10.1016/j.jinorgbio.2020.111118] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/13/2020] [Accepted: 05/17/2020] [Indexed: 02/08/2023]
Abstract
Near Infrared (NIR) imaging agents are extensively used in the biological or preclinical treatment and diagnosis of a wide range of diseases including cancers and tumors. The current arsenal of NIR compounds are most constituted by organic dyes, polymers, inorganic nanomaterials, whereas Ln molecular complexes explore an alternative approach to design NIR probes that are potentially bring new molecular toolkits into the biomedicine. In this review, NIR imaging agents are categorized according to their molecular sizes, constitution and the key properties and features of each class of compounds are briefly defined wherever possible. To better elucidate the features of Ln complexes, we provide a succinct understanding of sensitization process and molecular Ln luminescence at a mechanistic level, which may help to deliver new insights to design NIR imaging probes. Finally, we used our work on NIR ytterbium (Yb3+) probes as an example to raise awareness of exploring biologically relevant chemical space for lanthanide complexes as chemical entities for biological activity.
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Affiliation(s)
- Xin-Xin Peng
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China
| | - Xiao-Fei Zhu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China; School of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, PR China
| | - Jun-Long Zhang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China.
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26
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Hamon N, Roux A, Beyler M, Mulatier JC, Andraud C, Nguyen C, Maynadier M, Bettache N, Duperray A, Grichine A, Brasselet S, Gary-Bobo M, Maury O, Tripier R. Pyclen-Based Ln(III) Complexes as Highly Luminescent Bioprobes for In Vitro and In Vivo One- and Two-Photon Bioimaging Applications. J Am Chem Soc 2020; 142:10184-10197. [PMID: 32368907 DOI: 10.1021/jacs.0c03496] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
In addition to the already described ligand L4a, two pyclen-based lanthanide chelators, L4b and L4c, bearing two specific picolinate two-photon antennas (tailor-made for each targeted metal) and one acetate arm arranged in a dissymmetrical manner, have been synthesized, to form a complete family of lanthanide luminescent bioprobes: [EuL4a], [SmL4a], [YbL4b], [TbL4c], and [DyL4c]. Additionally, the symmetrically arranged regioisomer L4a' was also synthesized as well as its [EuL4a'] complex to highlight the astonishing positive impact of the dissymmetrical N-distribution of the functional chelating arms. The investigation clearly shows the high performance of each bioprobe, which, depending on the complexed lanthanide, could be used in various applications. Each presents high brightness, quantum yields, and lifetimes. Staining of the complexes into living human breast cancer cells was observed. In addition, in vivo two-photon microscopy was performed for the first time on a living zebrafish model with [EuL4a]. No apparent toxicity was detected on the growth of the zebrafish, and images of high quality were obtained.
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Affiliation(s)
- Nadège Hamon
- Univ Brest, UMR CNRS 6521 CEMCA, 6 Avenue Victor le Gorgeu, 29200 Brest, France
| | - Amandine Roux
- Univ Lyon ENS de Lyon, CNRS Laboratoire de Chimie UMR 5182, Université Claude Bernard Lyon 1, F-69342 Lyon, France
| | - Maryline Beyler
- Univ Brest, UMR CNRS 6521 CEMCA, 6 Avenue Victor le Gorgeu, 29200 Brest, France
| | - Jean-Christophe Mulatier
- Univ Lyon ENS de Lyon, CNRS Laboratoire de Chimie UMR 5182, Université Claude Bernard Lyon 1, F-69342 Lyon, France
| | - Chantal Andraud
- Univ Lyon ENS de Lyon, CNRS Laboratoire de Chimie UMR 5182, Université Claude Bernard Lyon 1, F-69342 Lyon, France
| | | | - Marie Maynadier
- NanoMedSyn, 15 Avenue Charles Flahault, F-34093 Montpellier Cedex 05, France
| | - Nadir Bettache
- IBMM, Univ Montpellier, CNRS, ENSCM, F-34000 Montpellier, France
| | - Alain Duperray
- INSERM, U1209, Université Grenoble 896 Alpes, IAB, F-38000 Grenoble, France
| | - Alexei Grichine
- INSERM, U1209, Université Grenoble 896 Alpes, IAB, F-38000 Grenoble, France
| | - Sophie Brasselet
- Univ Aix Marseille, CNRS, Centrale Marseille, Institut Fresnel, UMR 7249, F-13013 Marseille, France
| | - Magali Gary-Bobo
- IBMM, Univ Montpellier, CNRS, ENSCM, F-34000 Montpellier, France
| | - Olivier Maury
- Univ Lyon ENS de Lyon, CNRS Laboratoire de Chimie UMR 5182, Université Claude Bernard Lyon 1, F-69342 Lyon, France
| | - Raphaël Tripier
- Univ Brest, UMR CNRS 6521 CEMCA, 6 Avenue Victor le Gorgeu, 29200 Brest, France
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27
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Nonat AM, Charbonnière LJ. Upconversion of light with molecular and supramolecular lanthanide complexes. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213192] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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28
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Monteiro JHSK. Recent Advances in Luminescence Imaging of Biological Systems Using Lanthanide(III) Luminescent Complexes. Molecules 2020; 25:E2089. [PMID: 32365719 PMCID: PMC7248892 DOI: 10.3390/molecules25092089] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 04/25/2020] [Accepted: 04/27/2020] [Indexed: 12/15/2022] Open
Abstract
The use of luminescence in biological systems allows one to diagnose diseases and understand cellular processes. Molecular systems, particularly lanthanide(III) complexes, have emerged as an attractive system for application in cellular luminescence imaging due to their long emission lifetimes, high brightness, possibility of controlling the spectroscopic properties at the molecular level, and tailoring of the ligand structure that adds sensing and therapeutic capabilities. This review aims to provide a background in luminescence imaging and lanthanide spectroscopy and discuss selected examples from the recent literature on lanthanide(III) luminescent complexes in cellular luminescence imaging, published in the period 2016-2020. Finally, the challenges and future directions that are pointing for the development of compounds that are capable of executing multiple functions and the use of light in regions where tissues and cells have low absorption will be discussed.
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29
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30
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Metal complexes for mitochondrial bioimaging. J Inorg Biochem 2020; 204:110985. [DOI: 10.1016/j.jinorgbio.2019.110985] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 12/27/2019] [Accepted: 12/28/2019] [Indexed: 02/07/2023]
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31
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Guillou A, Galland M, Roux A, Váradi B, Gogolák RA, Le Saëc P, Faivre-Chauvet A, Beyler M, Bucher C, Tircsó G, Patinec V, Maury O, Tripier R. Picolinate-appended tacn complexes for bimodal imaging: Radiolabeling, relaxivity, photophysical and electrochemical studies. J Inorg Biochem 2020; 205:110978. [PMID: 31951911 DOI: 10.1016/j.jinorgbio.2019.110978] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 12/11/2019] [Accepted: 12/24/2019] [Indexed: 10/25/2022]
Abstract
Based on our previous works involving two 1,4,7-triazacyclononane (tacn)-based ligands Hno2py1pa (1-Picolinic acid-4,7-bis(pyridin-2-ylmethyl)-1,4,7-triazacyclononane) and Hno1pa (1-Picolinic acid-1,4,7-triazacyclononane), we report here the synthesis of analogues bearing picolinate-based π-conjugated ILCT (Intra-Ligand Charge Transfer) transition antenna (HL1, HL2), using regiospecific N-functionalization of the tacn skeleton and their related transition metal complexes (e.g. Cu2+, Zn2+ and Mn2+). Coordination properties as well as their photophysical and electrochemical properties were investigated in order to quantify the impact of such antenna on the luminescent or relaxometric properties of the complexes. The spectroscopic properties of the targeted ligands and metal complexes have been studied using UV-Vis absorption and fluorescence spectrocopies. While the zinc complex formed with HL1 possesses a moderate quantum yield of 5%, complexation of Cu2+ led to an extinction of the luminescence putatively attributed to a photo-induced electron transfer, as supported by spectroscopic and electrochemical evidences. The [Mn(L2)]+ complex is characterized by a fluorescence quantum yield close to 8% in CH2Cl2. The potential interest of such systems as bimodal probes has been assessed from radiolabeling experiments conducted on HL1 and 64Cu2+ as well as confocal microscopy analyses and from relaxometric studies carried out on the cationic [Mn(L2)]+ complex. These results showed that HL1 can be used for radiolabeling, with a radiochemical conversion of 40% in 15 min at 100 °C. Finally, the relaxivity values obtained for [Mn(L2)]+, r1p = 4.80 mM-1·s-1 and r2p = 8.72 mM-1·s-1, make the Mn(II) complex an ideal candidate as a probe for Magnetic Resonance Imaging.
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Affiliation(s)
- Amaury Guillou
- Univ Brest, UMR-CNRS 6521 CEMCA, 6 avenue Victor le Gorgeu, 29200 Brest, France
| | - Margaux Galland
- Univ Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 allée d'Italie, 69364 Lyon, France
| | - Amandine Roux
- Univ Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 allée d'Italie, 69364 Lyon, France
| | - Balázs Váradi
- Department of Physical Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Réka Anna Gogolák
- Department of Physical Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Patricia Le Saëc
- Université de Nantes, Centre de Recherche en Cancérologie et Immunologie Nantes Angers (CRCINA), Unité INSERM 1232 - CNRS 6299, 8 quai Moncousu, BP 70721, 44007 Nantes Cedex, France
| | - Alain Faivre-Chauvet
- Université de Nantes, Centre de Recherche en Cancérologie et Immunologie Nantes Angers (CRCINA), Unité INSERM 1232 - CNRS 6299, 8 quai Moncousu, BP 70721, 44007 Nantes Cedex, France
| | - Maryline Beyler
- Univ Brest, UMR-CNRS 6521 CEMCA, 6 avenue Victor le Gorgeu, 29200 Brest, France
| | - Christophe Bucher
- Univ Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 allée d'Italie, 69364 Lyon, France
| | - Gyula Tircsó
- Department of Physical Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Véronique Patinec
- Univ Brest, UMR-CNRS 6521 CEMCA, 6 avenue Victor le Gorgeu, 29200 Brest, France.
| | - Olivier Maury
- Univ Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 allée d'Italie, 69364 Lyon, France.
| | - Raphaël Tripier
- Univ Brest, UMR-CNRS 6521 CEMCA, 6 avenue Victor le Gorgeu, 29200 Brest, France.
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32
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Piccinelli F, Rosa CD, Lazarowska A, Mahlik S, Grinberg M, Nakanishi T, Omagari S, Bettinelli M. Optical properties of Eu(III) and Tb(III) complexes with pyridine- and quinoline- based ligands under high hydrostatic pressure. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2019.119179] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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33
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Starck M, Fradgley JD, Di Vita S, Mosely JA, Pal R, Parker D. Targeted Luminescent Europium Peptide Conjugates: Comparative Analysis Using Maleimide and para-Nitropyridyl Linkages for Organelle Staining. Bioconjug Chem 2019; 31:229-240. [DOI: 10.1021/acs.bioconjchem.9b00735] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Matthieu Starck
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United Kingdom
| | - Jack D. Fradgley
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United Kingdom
| | - Stefania Di Vita
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United Kingdom
| | - Jackie A. Mosely
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United Kingdom
| | - Robert Pal
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United Kingdom
| | - David Parker
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United Kingdom
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34
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Kovacs D, Kiraev SR, Phipps D, Orthaber A, Borbas KE. Eu(III) and Tb(III) Complexes of Octa- and Nonadentate Macrocyclic Ligands Carrying Azide, Alkyne, and Ester Reactive Groups. Inorg Chem 2019; 59:106-117. [DOI: 10.1021/acs.inorgchem.9b01576] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Daniel Kovacs
- Department of Chemistry, Ångström Laboratory, Box 523, Uppsala University, 75120, Uppsala, Sweden
| | - Salauat R. Kiraev
- Department of Chemistry, Ångström Laboratory, Box 523, Uppsala University, 75120, Uppsala, Sweden
| | - Dulcie Phipps
- Department of Chemistry, Ångström Laboratory, Box 523, Uppsala University, 75120, Uppsala, Sweden
| | - Andreas Orthaber
- Department of Chemistry, Ångström Laboratory, Box 523, Uppsala University, 75120, Uppsala, Sweden
| | - K. Eszter Borbas
- Department of Chemistry, Ångström Laboratory, Box 523, Uppsala University, 75120, Uppsala, Sweden
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35
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Cosby AG, Quevedo G, Boros E. A High-Throughput Method To Measure Relative Quantum Yield of Lanthanide Complexes for Bioimaging. Inorg Chem 2019; 58:10611-10615. [PMID: 31380629 DOI: 10.1021/acs.inorgchem.9b01786] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Luminescent lanthanides provide a promising alternative to organic chromophores for cellular bioimaging and bioassay applications; efficacy is closely governed by their respective quantum yields. Conventionally utilized quantum-yield measurements for lanthanides are laborious and not amenable to rapid relative comparison of compound performance. Here, we introduce a high-throughput optical imaging method to determine and directly compare relative quantum yield using Cherenkov-radiation-mediated excitation of luminescent lanthanide complexes.
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Affiliation(s)
- Alexia G Cosby
- Department of Chemistry , Stony Brook University , 100 Nicolls Road , Stony Brook , New York 11790 , United States
| | - Gregory Quevedo
- Department of Chemistry , Stony Brook University , 100 Nicolls Road , Stony Brook , New York 11790 , United States
| | - Eszter Boros
- Department of Chemistry , Stony Brook University , 100 Nicolls Road , Stony Brook , New York 11790 , United States
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36
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Thiele NA, Woods JJ, Wilson JJ. Implementing f-Block Metal Ions in Medicine: Tuning the Size Selectivity of Expanded Macrocycles. Inorg Chem 2019; 58:10483-10500. [DOI: 10.1021/acs.inorgchem.9b01277] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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37
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Mara MW, Tatum DS, March AM, Doumy G, Moore EG, Raymond KN. Energy Transfer from Antenna Ligand to Europium(III) Followed Using Ultrafast Optical and X-ray Spectroscopy. J Am Chem Soc 2019; 141:11071-11081. [DOI: 10.1021/jacs.9b02792] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael W. Mara
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - David S. Tatum
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Anne-Marie March
- Chemical Sciences and Engineering, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Gilles Doumy
- Chemical Sciences and Engineering, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Evan G. Moore
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, QLD 4072, Australia
| | - Kenneth N. Raymond
- Department of Chemistry, University of California, Berkeley, California 94720, United States
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38
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Abad Galán L, Wada S, Cameron L, Sobolev AN, Hasegawa Y, Zysman-Colman E, Ogden MI, Massi M. Photophysical investigation of near infrared emitting lanthanoid complexes incorporating tris(2-naphthoyl)methane as a new antenna ligand. Dalton Trans 2019; 48:3768-3776. [PMID: 30810553 DOI: 10.1039/c8dt04749a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A conjugated β-triketone, tris(2-naphthoyl)methane (tnmH), has been synthesized and successfully utilized as an antenna moiety for sensitization of the trivalent lanthanoids Eu3+, Sm3+, Yb3+ and Nd3+, in an isomorphous series of mononuclear complexes formulated as [Ln(tnm)3(DMSO)2] (Ln3+ = Nd3+, Sm3+, Eu3+, Gd3+ and Yb3+). The photophysical properties of the materials were characterized as comprehensively as possible, with overall quantum yields, intrinsic quantum yields based on calculated radiative decays, and sensitization efficiencies reported. This investigation improves understanding of the sensitization processes occurring in the near-infrared (NIR) region, where quantitative data are currently scarce. In fact, the [Yb(tnm)3(DMSO)2] and its deuterated analogue, [Yb(tnm)3(d6-DMSO)2], present high values of overall quantum yield of 4% and 6%, respectively, which makes them useful and readily accessible references for future investigation of NIR-emitting systems.
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Affiliation(s)
- Laura Abad Galán
- School of Molecular and Life Sciences and Curtin Institute for Functional Molecules and Interfaces, Curtin University, Kent Street, Bentley 6102, WA, Australia.
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39
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Guillou A, Lima LMP, Esteban-Gómez D, Le Poul N, Bartholomä MD, Platas-Iglesias C, Delgado R, Patinec V, Tripier R. Methylthiazolyl Tacn Ligands for Copper Complexation and Their Bifunctional Chelating Agent Derivatives for Bioconjugation and Copper-64 Radiolabeling: An Example with Bombesin. Inorg Chem 2019; 58:2669-2685. [PMID: 30689368 DOI: 10.1021/acs.inorgchem.8b03280] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We present here the synthesis of two new bifunctionalized azachelators, no2th-EtBzNCS and Hno2th1tha, as bioconjugable analogues of two previously described di- and trimethylthiazolyl 1,4,7-triazacyclononane (tacn) ligands, no2th and no3th, for potential uses in copper-64 (64Cu) positron emission tomography imaging. The first one bears an isothiocyanate group on the remaining free nitrogen atom of the tacn framework, while the second one presents an additional carboxylic function on one of the three heterocyclic pendants. Their syntheses required regiospecific N-functionalization of the macrocycles. In order to investigate their suitability for in vivo applications, a complete study of their copper(II) chelation was performed. The acid-base properties of the ligands and their thermodynamic stability constants with copper(II) and zinc(II) cations were determined using potentiometric techniques. Structural studies were conducted in both solution and the solid state, consolidated by theoretical calculations. The kinetic inertness in an acidic medium of both copper(II) complexes was determined by spectrophotometry, while cyclic voltammetry experiments were performed to evaluate the stability at the copper(I) redox state. UV-vis, NMR (of the zinc complexes), electron paramagnetic resonance spectroscopy, and density functional theory studies showed excellent agreement between the solution structures of the complexes and their crystallographic data. These investigations unambiguously prove that these bifunctional derivatives display similar coordination properties as their no2th and no3th counterparts, opening the door to targeted bioapplications. The no2th-EtBzNCS and Hno2th1tha ligands were then conjugated to a bombesin antagonist peptide for targeting the gastrin-releasing peptide receptor (GRPr). To highlight the potential of the two chelators for radiopharmaceutical development, the 64Cu-radiolabeling properties, in vitro stability, and binding affinity to GRPr of the corresponding bioconjugates were determined. Altogether, the results of this work warrant the further development of 64Cu-based radiopharmaceuticals comprising our novel bifunctional chelators.
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Affiliation(s)
- Amaury Guillou
- UFR des Sciences et Techniques , UMR-CNRS 6521, Université de Bretagne Occidentale , 6 avenue Victor le Gorgeu, C.S. 93837 , 29238 Brest Cedex 3 , France
| | - Luís M P Lima
- Instituto de Tecnologia Química e Biológica António Xavier , Universidade Nova de Lisboa , Avenida da República , 2780-157 Oeiras , Portugal
| | - David Esteban-Gómez
- Departamento de Química, Facultade de Ciencias & Centro de Investigaciones Científicas Avanzadas , Universidade da Coruña , 15071 A Coruña , Spain
| | - Nicolas Le Poul
- UFR des Sciences et Techniques , UMR-CNRS 6521, Université de Bretagne Occidentale , 6 avenue Victor le Gorgeu, C.S. 93837 , 29238 Brest Cedex 3 , France
| | - Mark D Bartholomä
- Department of Nuclear Medicine , Saarland University-Medical Center , Kirrbergerstrasse , 66421 Homburg , Germany
| | - Carlos Platas-Iglesias
- Departamento de Química, Facultade de Ciencias & Centro de Investigaciones Científicas Avanzadas , Universidade da Coruña , 15071 A Coruña , Spain
| | - Rita Delgado
- Instituto de Tecnologia Química e Biológica António Xavier , Universidade Nova de Lisboa , Avenida da República , 2780-157 Oeiras , Portugal
| | - Véronique Patinec
- UFR des Sciences et Techniques , UMR-CNRS 6521, Université de Bretagne Occidentale , 6 avenue Victor le Gorgeu, C.S. 93837 , 29238 Brest Cedex 3 , France
| | - Raphaël Tripier
- UFR des Sciences et Techniques , UMR-CNRS 6521, Université de Bretagne Occidentale , 6 avenue Victor le Gorgeu, C.S. 93837 , 29238 Brest Cedex 3 , France
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40
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Shah A, Roux A, Starck M, Mosely JA, Stevens M, Norman DG, Hunter RI, El Mkami H, Smith GM, Parker D, Lovett JE. A Gadolinium Spin Label with Both a Narrow Central Transition and Short Tether for Use in Double Electron Electron Resonance Distance Measurements. Inorg Chem 2019; 58:3015-3025. [DOI: 10.1021/acs.inorgchem.8b02892] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Anokhi Shah
- SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews KY16 9SS, U.K
- BSRC, University of St Andrews, St Andrews KY16 9ST, U.K
| | - Amandine Roux
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K
| | - Matthieu Starck
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K
| | - Jackie A. Mosely
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K
| | - Michael Stevens
- College of Life Sciences, University of Dundee, Dow Street, Dundee DD1 5EH, U.K
| | - David G. Norman
- College of Life Sciences, University of Dundee, Dow Street, Dundee DD1 5EH, U.K
| | - Robert I. Hunter
- SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews KY16 9SS, U.K
| | - Hassane El Mkami
- SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews KY16 9SS, U.K
| | - Graham M. Smith
- SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews KY16 9SS, U.K
| | - David Parker
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K
| | - Janet E. Lovett
- SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews KY16 9SS, U.K
- BSRC, University of St Andrews, St Andrews KY16 9ST, U.K
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41
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Piccinelli F, De Rosa C, Melchior A, Faura G, Tolazzi M, Bettinelli M. Eu(iii) and Tb(iii) complexes of 6-fold coordinating ligands showing high affinity for the hydrogen carbonate ion: a spectroscopic and thermodynamic study. Dalton Trans 2019; 48:1202-1216. [PMID: 30460363 DOI: 10.1039/c8dt03621g] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
In the present contribution, four classes of Ln(iii) complexes (Ln = Eu and Tb) have been synthesized and characterized in aqueous solution. They differ by charge, Ln(bpcd)+ [bpcd2- = N,N'-bis(2-pyridylmethyl)-trans-1,2-diaminocyclohexane N,N'-diacetate] and Ln(bQcd)+ (bQcd2- = N,N'-bis(2-quinolinmethyl)-trans-1,2-diaminocyclohexane N,N'-diacetate) being positively charged and Ln(PyC3A) (PyC3A3- = N-picolyl-N,N',N'-trans-l,2-cyclohexylenediaminetriacetate) and Ln(QC3A) (QC3A3- = N-quinolyl-N,N',N'-trans-l,2-cyclohexylenediaminetriacetate) being neutral. Combined DFT, spectrophotometric and potentiometric studies reveal the presence, under physiological conditions (pH 7.4), of a couple of equally and highly stable isomers differing by the stereochemistry of the ligands (trans-N,N and trans-O,O for bpcd2- and bQcd2-; trans-O,O and trans-N,O for PyC3A3- and QC3A3-). Their high log β values (9.97 < log β < 15.68), the presence of an efficient antenna effect and the strong increase of the Ln(iii) luminescence intensity as a function of the hydrogen carbonate concentration in physiological solution, render these complexes as very promising optical probes for a selective detection of HCO3-in cellulo or in extracellular fluid. This particularly applies to the cationic Eu(bpcd)+, Tb(bpcd)+ and Eu(bQcd)+ complexes, which are capable of guesting up to two hydrogen carbonate anions in the inner coordination sphere of the metal ion, so that they show an unprecedented affinity towards HCO3- (log K for the formation of the adduct in the 4.6-5.9 range).
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Affiliation(s)
- Fabio Piccinelli
- Laboratorio Materiali Luminescenti, DB, Università di Verona, and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy.
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42
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Sund H, Liao YY, Andraud C, Duperray A, Grichine A, Le Guennic B, Riobé F, Takalo H, Maury O. Polyanionic Polydentate Europium Complexes as Ultrabright One- or Two-photon Bioprobes. Chemphyschem 2018; 19:3318-3324. [PMID: 30198105 DOI: 10.1002/cphc.201800557] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Indexed: 12/27/2022]
Abstract
A family of europium (III) complexes based on a polydentate ligand functionalized by charge-transfer antennae presents remarkable one- and two-photon photophysical proper-ties in water or buffer. A detailed analysis of their emission properties suggests that the wrapping of the ligand around the central rare-earth ion results in an overall Cs symmetry in agreement with the theoretical simulation and that about 65-70 % of the emission intensity is concentrated in the hypersensitive 5 D0 →7 F2 transition at 615 nm. Their brightness is excellent, in the range of the best lanthanide bioprobes making them very attractive for bio-imaging experiments.
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Affiliation(s)
- Henri Sund
- Radiometer Turku Oy, Biolinja 12, 20750, Turku, Finland
| | - Yuan-Yuan Liao
- Univ Lyon, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, Laboratoire de Chimie, F69342, Lyon, France
| | - Chantal Andraud
- Univ Lyon, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, Laboratoire de Chimie, F69342, Lyon, France
| | - Alain Duperray
- Institute for Advanced Biosciences, Inserm U1209, CNRS UMR5309, Université. Grenoble Alpes, 38000, Grenoble, France
| | - Alexei Grichine
- Institute for Advanced Biosciences, Inserm U1209, CNRS UMR5309, Université. Grenoble Alpes, 38000, Grenoble, France
| | - Boris Le Guennic
- Univ Rennes, CNRS, ISCR, Institut des Sciences Chimiques de Rennes), UMR 6226, F-, 35000 Rennes, France
| | - François Riobé
- Univ Lyon, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, Laboratoire de Chimie, F69342, Lyon, France
| | - Harri Takalo
- Radiometer Turku Oy, Biolinja 12, 20750, Turku, Finland
| | - Olivier Maury
- Univ Lyon, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, Laboratoire de Chimie, F69342, Lyon, France
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43
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Mathieu E, Sipos A, Demeyere E, Phipps D, Sakaveli D, Borbas KE. Lanthanide-based tools for the investigation of cellular environments. Chem Commun (Camb) 2018; 54:10021-10035. [PMID: 30101249 DOI: 10.1039/c8cc05271a] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Biological probes constructed from lanthanides can provide a variety of readout signals, such as the luminescence of Eu(iii), Tb(iii), Yb(iii), Sm(iii) and Dy(iii), and the proton relaxation enhancement of Gd(iii) and Eu(ii). For numerous applications the intracellular delivery of the lanthanide probe is essential. Here, we review the methods for the intracellular delivery of non-targeted complexes (i.e. where the overall complex structure enhances cellular uptake), as well as complexes attached to a targeting unit (i.e. to a peptide or a small molecule) that facilitates delivery. The cellular applications of lanthanide-based supramolecules (dendrimers, metal organic frameworks) are covered briefly. Throughout, we emphasize the techniques that can confirm the intracellular localization of the lanthanides and those that enable the determination of the fate of the probes once inside the cell. Finally, we highlight methods that have not yet been applied in the context of lanthanide-based probes, but have been successful in the intracellular delivery of other metal-based probes.
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Affiliation(s)
- Emilie Mathieu
- Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, 75120, Uppsala, Sweden.
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44
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Mailhot R, Traviss‐Pollard T, Pal R, Butler SJ. Cationic Europium Complexes for Visualizing Fluctuations in Mitochondrial ATP Levels in Living Cells. Chemistry 2018; 24:10745-10755. [PMID: 29761917 PMCID: PMC6175470 DOI: 10.1002/chem.201801008] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 05/10/2018] [Indexed: 01/02/2023]
Abstract
The ability to study cellular metabolism and enzymatic processes involving adenosine triphosphate (ATP) is impeded by the lack of imaging probes capable of signalling the concentration and distribution of intracellular ATP rapidly, with high sensitivity. We report here the first example of a luminescent lanthanide complex capable of visualizing changes in the concentration of ATP in the mitochondria of living cells. Four cationic europium(III) complexes [Eu.1-4]+ have been synthesized and their binding capabilities towards nucleoside polyphosphate anions examined in aqueous solution at physiological pH. Complexes [Eu.1]+ and [Eu.3]+ bearing hydrogen bond donor groups in the pendant arms showed excellent discrimination between ATP, ADP and monophosphate species. Complex [Eu.3]+ showed relatively strong binding to ATP (logKa =5.8), providing a rapid, long-lived luminescent signal that enabled its detection in a highly competitive aqueous medium containing biologically relevant concentrations of Mg2+ , ADP, GTP, UTP and human serum albumin. This EuIII complex responds linearly to ATP within the physiological concentration range (1-5 mm), and was used to continuously monitor the apyrase-catalyzed hydrolysis of ATP to ADP in vitro. We demonstrate that [Eu.3]+ can permeate mammalian (NIH-3T3) cells efficiently and localize to the mitochondria selectively, permitting real-time visualization of elevated mitochondrial ATP levels following treatment with a broad spectrum kinase inhibitor, staurosporine, as well as depleted ATP levels upon treatment with potassium cyanide under glucose starvation conditions.
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Affiliation(s)
- Romain Mailhot
- Department of ChemistryLoughborough UniversityEpinal WayLoughboroughLE11 3TUUK
| | | | - Robert Pal
- Department of ChemistryDurham UniversitySouth RoadDurhamDH1 3LEUK
| | - Stephen J. Butler
- Department of ChemistryLoughborough UniversityEpinal WayLoughboroughLE11 3TUUK
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45
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Salaam J, Tabti L, Bahamyirou S, Lecointre A, Hernandez Alba O, Jeannin O, Camerel F, Cianférani S, Bentouhami E, Nonat AM, Charbonnière LJ. Formation of Mono- and Polynuclear Luminescent Lanthanide Complexes based on the Coordination of Preorganized Phosphonated Pyridines. Inorg Chem 2018; 57:6095-6106. [DOI: 10.1021/acs.inorgchem.8b00666] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Jérémy Salaam
- LIMAA, IPHC, UMR 7178, Université de Strasbourg, ECPM, 25 rue Becquerel, 67087 Strasbourg Cedex
02, France
| | - Lilia Tabti
- LIMAA, IPHC, UMR 7178, Université de Strasbourg, ECPM, 25 rue Becquerel, 67087 Strasbourg Cedex
02, France
- LCIMN Laboratory, Department of Process Engineering, Faculty of Technology, University Ferhat Abbas, 19000 Sétif, Algeria
| | - Sylvana Bahamyirou
- LIMAA, IPHC, UMR 7178, Université de Strasbourg, ECPM, 25 rue Becquerel, 67087 Strasbourg Cedex
02, France
| | - Alexandre Lecointre
- LIMAA, IPHC, UMR 7178, Université de Strasbourg, ECPM, 25 rue Becquerel, 67087 Strasbourg Cedex
02, France
| | - Oscar Hernandez Alba
- LSMBO, IPHC, UMR 7178, Université de Strasbourg, ECPM, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | | | | | - Sarah Cianférani
- LSMBO, IPHC, UMR 7178, Université de Strasbourg, ECPM, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Embarek Bentouhami
- LCIMN Laboratory, Department of Process Engineering, Faculty of Technology, University Ferhat Abbas, 19000 Sétif, Algeria
| | - Aline M. Nonat
- LIMAA, IPHC, UMR 7178, Université de Strasbourg, ECPM, 25 rue Becquerel, 67087 Strasbourg Cedex
02, France
| | - Loïc J. Charbonnière
- LIMAA, IPHC, UMR 7178, Université de Strasbourg, ECPM, 25 rue Becquerel, 67087 Strasbourg Cedex
02, France
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46
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Kai T, Kishimoto M, Akita M, Yoshizawa M. Encapsulation-induced emission enhancement (EIEE) of Eu(iii)-complexes by aromatic micelles in water. Chem Commun (Camb) 2018; 54:956-959. [PMID: 29319083 DOI: 10.1039/c7cc09450g] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Eu(iii)-complexes emit highly pure and intense red luminescence in aprotic organic solvents, yet the emission is usually quenched completely in the presence of aqueous solvents. Here we report that typical Eu(iii)-complexes are readily encapsulated in the hydrophobic cavities of aromatic micelles, composed of amphiphilic molecules with bent aromatic frameworks. Whereas the emissivity of the Eu(iii)-complexes themselves is zero in aqueous solutions, the resultant host-guest nanocomposites exhibit relatively strong red emission (up to Φ = 48%) with long emission lifetimes (up to τ = 1.05 ms) even in water. Thus, encapsulation-induced emission enhancement (EIEE) of the otherwise water-deactivated luminescent compounds is demonstrated by the aromatic micelle.
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Affiliation(s)
- Tomokuni Kai
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
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47
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Bui AT, Roux A, Grichine A, Duperray A, Andraud C, Maury O. Twisted Charge-Transfer Antennae for Ultra-Bright Terbium(III) and Dysprosium(III) Bioprobes. Chemistry 2018; 24:3408-3412. [DOI: 10.1002/chem.201705933] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Anh Thy Bui
- Univ Lyon, ENS de Lyon, CNRS UMR 5182; Université Claude Bernard Lyon 1, Laboratoire de Chimie; 69342 Lyon France
| | - Amandine Roux
- Univ Lyon, ENS de Lyon, CNRS UMR 5182; Université Claude Bernard Lyon 1, Laboratoire de Chimie; 69342 Lyon France
| | - Alexei Grichine
- Institute for Advanced Biosciences, Inserm U1209, CNRS UMR5309; Université. Grenoble Alpes; 38000 Grenoble France
| | - Alain Duperray
- Institute for Advanced Biosciences, Inserm U1209, CNRS UMR5309; Université. Grenoble Alpes; 38000 Grenoble France
| | - Chantal Andraud
- Univ Lyon, ENS de Lyon, CNRS UMR 5182; Université Claude Bernard Lyon 1, Laboratoire de Chimie; 69342 Lyon France
| | - Olivier Maury
- Univ Lyon, ENS de Lyon, CNRS UMR 5182; Université Claude Bernard Lyon 1, Laboratoire de Chimie; 69342 Lyon France
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48
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Zhang KY, Yu Q, Wei H, Liu S, Zhao Q, Huang W. Long-Lived Emissive Probes for Time-Resolved Photoluminescence Bioimaging and Biosensing. Chem Rev 2018; 118:1770-1839. [DOI: 10.1021/acs.chemrev.7b00425] [Citation(s) in RCA: 479] [Impact Index Per Article: 79.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Kenneth Yin Zhang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, P. R. China
| | - Qi Yu
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, P. R. China
| | - Huanjie Wei
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, P. R. China
| | - Shujuan Liu
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, P. R. China
| | - Qiang Zhao
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, P. R. China
| | - Wei Huang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, P. R. China
- Shaanxi
Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NPU), Xi’an 710072, P. R. China
- Key
Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced
Materials (IAM), Jiangsu National Synergetic Innovation Center for
Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), Nanjing 211800, P. R. China
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49
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Cross JM, Gallagher N, Gill JH, Jain M, McNeillis AW, Rockley KL, Tscherny FH, Wirszycz NJ, Yufit DS, Walton JW. Pyridylphosphinate metal complexes: synthesis, structural characterisation and biological activity. Dalton Trans 2018; 45:12807-13. [PMID: 27468432 DOI: 10.1039/c6dt01264g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
For the first time, a series of 25 pseudo-octahedral pyridylphosphinate metal complexes (Ru, Os, Rh, Ir) has been synthesised and assessed in biological systems. Each metal complex incorporates a pyridylphosphinate ligand, a monodentate halide and a capping η(6)-bound aromatic ligand. Solid- and solution-state analyses of two complexes reveal a structural preference for one of a possible two diastereomers. The metal chlorides hydrolyse rapidly in D2O to form a 1 : 1 equilibrium ratio between the aqua and chloride adducts. The pKa of the aqua adduct depends upon the pyridyl substituent and the metal but has little dependence upon the phosphinate R' group. Toxicity was measured in vitro against non-small cell lung carcinoma H460 cells, with the most potent complexes reporting IC50 values around 50 μM. Binding studies with selected amino acids and nucleobases provide a rationale for the variation in toxicity observed within the series. Finally, an investigation into the ability of the chelating amino acid l-His to displace the phosphinate O-metal bond shows the potential for phosphinate complexes to act as prodrugs that can be activated in the intracellular environment.
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Affiliation(s)
- Jasmine M Cross
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
| | - Natalie Gallagher
- School of Medicine, Pharmacy and Health, Durham University, Wolfson Research Institute, Queen's Campus, Stockton on Tees, TS17 6BH, UK
| | - Jason H Gill
- School of Medicine, Pharmacy and Health, Durham University, Wolfson Research Institute, Queen's Campus, Stockton on Tees, TS17 6BH, UK
| | - Mohit Jain
- School of Medicine, Pharmacy and Health, Durham University, Wolfson Research Institute, Queen's Campus, Stockton on Tees, TS17 6BH, UK
| | | | - Kimberly L Rockley
- School of Medicine, Pharmacy and Health, Durham University, Wolfson Research Institute, Queen's Campus, Stockton on Tees, TS17 6BH, UK
| | - Fiona H Tscherny
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
| | - Natasha J Wirszycz
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
| | - Dmitry S Yufit
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
| | - James W Walton
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
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50
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Kreidt E, Kruck C, Seitz M. Nonradiative Deactivation of Lanthanoid Luminescence by Multiphonon Relaxation in Molecular Complexes. INCLUDING ACTINIDES 2018. [DOI: 10.1016/bs.hpcre.2018.04.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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