51
|
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
| |
Collapse
|
52
|
Ning Y, Tang J, Liu YW, Jing J, Sun Y, Zhang JL. Highly luminescent, biocompatible ytterbium(iii) complexes as near-infrared fluorophores for living cell imaging. Chem Sci 2018; 9:3742-3753. [PMID: 29780506 PMCID: PMC5939605 DOI: 10.1039/c8sc00259b] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 03/18/2018] [Indexed: 12/27/2022] Open
Abstract
We report three synthetic methods to prepare biocompatible Yb3+ complexes, which displayed high NIR luminescence with quantum yields up to 13% in aqueous media. This renders β-fluorinated Yb3+ porphyrinoids a new class of NIR probes for living cell imaging including time-resolved fluorescence lifetime imaging.
Herein, we report the design and synthesis of biocompatible Yb3+ complexes for near-infrared (NIR) living cell imaging. Upon excitation at either the visible (Soret band) or red region (Q band), these β-fluorinated Yb3+ complexes display high NIR luminescence (quantum yields up to 23% and 13% in dimethyl sulfoxide and water, respectively) and have higher stabilities and prolonged decay lifetimes (up to 249 μs) compared to the β-non-fluorinated counterparts. This renders the β-fluorinated Yb3+ complexes as a new class of biological optical probes in both steady-state imaging and time-resolved fluorescence lifetime imaging (FLIM). NIR confocal fluorescence images showed strong and specific intracellular Yb3+ luminescence signals when the biocompatible Yb3+ complexes were uptaken into the living cells. Importantly, FLIM measurements showed an intracellular lifetime distribution between 100 and 200 μs, allowing an effective discrimination from cell autofluorescence, and afforded high signal-to-noise ratios as firstly demonstrated in the NIR region. These results demonstrated the prospects of NIR lanthanide complexes as biological probes for NIR steady-state fluorescence and time-resolved fluorescence lifetime imaging.
Collapse
Affiliation(s)
- Yingying Ning
- 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 , P. R. China .
| | - Juan Tang
- 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 , P. R. China .
| | - Yi-Wei Liu
- 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 , P. R. China .
| | - Jing Jing
- School of Chemistry , Beijing Institute of Technology , Beijing 100081 , P. R. 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 , P. R. China .
| |
Collapse
|
53
|
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
| |
Collapse
|
54
|
Frawley AT, Linford HV, Starck M, Pal R, Parker D. Enantioselective cellular localisation of europium(iii) coordination complexes. Chem Sci 2018; 9:1042-1049. [PMID: 29675151 PMCID: PMC5883863 DOI: 10.1039/c7sc04422d] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 12/06/2017] [Indexed: 12/16/2022] Open
Abstract
The selective mitochondrial localisation of the Λ enantiomer of three different emissive europium(iii) complexes in NIH 3T3 and MCF7 cells contrasts with the behaviour of the Δ enantiomer, for which a predominant lysosomal localisation was observed by confocal microscopy. In each case, cell uptake occurs via macropinocytosis.
Collapse
Affiliation(s)
- Andrew T Frawley
- Department of Chemistry , Durham University , South Road , Durham , DH1 3LE , UK .
| | - Holly V Linford
- Department of Chemistry , Durham University , South Road , Durham , DH1 3LE , UK .
| | - Matthieu Starck
- Department of Chemistry , Durham University , South Road , Durham , DH1 3LE , UK .
| | - Robert Pal
- Department of Chemistry , Durham University , South Road , Durham , DH1 3LE , UK .
| | - David Parker
- Department of Chemistry , Durham University , South Road , Durham , DH1 3LE , UK .
| |
Collapse
|
55
|
Abstract
Beyond the more common chemical delivery strategies, several physical techniques are used to open the lipid bilayers of cellular membranes. These include using electric and magnetic fields, temperature, ultrasound or light to introduce compounds into cells, to release molecular species from cells or to selectively induce programmed cell death (apoptosis) or uncontrolled cell death (necrosis). More recently, molecular motors and switches that can change their conformation in a controlled manner in response to external stimuli have been used to produce mechanical actions on tissue for biomedical applications. Here we show that molecular machines can drill through cellular bilayers using their molecular-scale actuation, specifically nanomechanical action. Upon physical adsorption of the molecular motors onto lipid bilayers and subsequent activation of the motors using ultraviolet light, holes are drilled in the cell membranes. We designed molecular motors and complementary experimental protocols that use nanomechanical action to induce the diffusion of chemical species out of synthetic vesicles, to enhance the diffusion of traceable molecular machines into and within live cells, to induce necrosis and to introduce chemical species into live cells. We also show that, by using molecular machines that bear short peptide addends, nanomechanical action can selectively target specific cell-surface recognition sites. Beyond the in vitro applications demonstrated here, we expect that molecular machines could also be used in vivo, especially as their design progresses to allow two-photon, near-infrared and radio-frequency activation.
Collapse
|
56
|
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.
Collapse
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.
| |
Collapse
|
57
|
Kovacs D, Phipps D, Orthaber A, Borbas KE. Highly luminescent lanthanide complexes sensitised by tertiary amide-linked carbostyril antennae. Dalton Trans 2018; 47:10702-10714. [DOI: 10.1039/c8dt01270a] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The replacement of the secondary amide linker that carries the sensitizing carbostyril antenna with a tertiary amide in luminescent Eu and Tb complexes dramatically increases the lanthanide emission quantum yields.
Collapse
Affiliation(s)
- Daniel Kovacs
- Department of Chemistry
- Ångström Laboratory
- Uppsala University
- Uppsala
- Sweden
| | - Dulcie Phipps
- Department of Chemistry
- Ångström Laboratory
- Uppsala University
- Uppsala
- Sweden
| | - Andreas Orthaber
- Department of Chemistry
- Ångström Laboratory
- Uppsala University
- Uppsala
- Sweden
| | - K. Eszter Borbas
- Department of Chemistry
- Ångström Laboratory
- Uppsala University
- Uppsala
- Sweden
| |
Collapse
|
58
|
Roux A, Isaac M, Chabert V, Denisov SA, McClenaghan ND, Sénèque O. Influence of amino acid sequence in a peptidic Cu+-responsive luminescent probe inspired by the copper chaperone CusF. Org Biomol Chem 2018; 16:5626-5634. [DOI: 10.1039/c8ob01044g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Amino acid sequence influences the luminescence behavior of a family of bio-inspired Cu+-responsive probes.
Collapse
Affiliation(s)
- A. Roux
- Univ. Grenoble Alpes
- CNRS
- CEA
- BIG
- LCBM (UMR 5249)
| | - M. Isaac
- Univ. Grenoble Alpes
- CNRS
- CEA
- BIG
- LCBM (UMR 5249)
| | - V. Chabert
- Univ. Grenoble Alpes
- CNRS
- CEA
- BIG
- LCBM (UMR 5249)
| | | | | | - O. Sénèque
- Univ. Grenoble Alpes
- CNRS
- CEA
- BIG
- LCBM (UMR 5249)
| |
Collapse
|
59
|
Galán LA, Reid BL, Stagni S, Sobolev AN, Skelton BW, Cocchi M, Malicka JM, Zysman-Colman E, Moore EG, Ogden MI, Massi M. Visible and Near-Infrared Emission from Lanthanoid β-Triketonate Assemblies Incorporating Cesium Cations. Inorg Chem 2017; 56:8975-8985. [DOI: 10.1021/acs.inorgchem.7b00928] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Laura Abad Galán
- Department of Chemistry
and Curtin Institute of Functional Molecules and Interfaces, Curtin University, Kent Street, Bentley 6102, Western Australia, Australia
| | - Brodie L. Reid
- Department of Chemistry
and Curtin Institute of Functional Molecules and Interfaces, Curtin University, Kent Street, Bentley 6102, Western Australia, Australia
| | - Stefano Stagni
- Department of Industrial Chemistry “Toso Montanari”, University of Bologna, viale del Risorgimento 4, Bologna 40136, Italy
| | - Alexandre N. Sobolev
- School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, Perth, Western Australia 6009, Australia
| | - Brian W. Skelton
- School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, Perth, Western Australia 6009, Australia
| | - Massimo Cocchi
- Institute for Organic Synthesis and Photoreactivity
(ISOF), Consiglio Nazionale delle Ricerche (CNR), Via P. Gobetti
101, 40129 Bologna, Italy
| | - Joanna M. Malicka
- Institute for Organic Synthesis and Photoreactivity
(ISOF), Consiglio Nazionale delle Ricerche (CNR), Via P. Gobetti
101, 40129 Bologna, Italy
| | - Eli Zysman-Colman
- Organic Semiconductor Centre, EaStCHEM
School of Chemistry, University of St. Andrews, St. Andrews, Fife KY16
9ST, United Kingdom
| | - Evan G. Moore
- School of Chemistry and
Molecular Biosciences, University of Queensland, St Lucia, Queensland 4072, Australia
| | - Mark I. Ogden
- Department of Chemistry
and Curtin Institute of Functional Molecules and Interfaces, Curtin University, Kent Street, Bentley 6102, Western Australia, Australia
| | - Massimiliano Massi
- Department of Chemistry
and Curtin Institute of Functional Molecules and Interfaces, Curtin University, Kent Street, Bentley 6102, Western Australia, Australia
| |
Collapse
|
60
|
Francis B, Neuhaus B, Reddy MLP, Epple M, Janiak C. Amine‐Functionalized Silica Nanoparticles Incorporating Covalently Linked Visible‐Light‐Excitable Eu
3+
Complexes: Synthesis, Characterization, and Cell‐Uptake Studies. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700240] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Biju Francis
- CSIR‐Network of Institutes for Solar Energy National Institute for Interdisciplinary Science & Technology (NIIST) 695019 Thiruvananthapuram India
- Institut für Anorganische Chemie 1 Universität Düsseldorf Universitätsstr. 1 40225 Düsseldorf Germany
| | - Bernhard Neuhaus
- Inorganic Chemistry and Center for Nanointegration Duisburg‐Essen (CeNIDE) University of Duisburg‐Essen Universitaetsstr. 5–7 45117 Essen Germany
| | - M. L. P. Reddy
- CSIR‐Network of Institutes for Solar Energy National Institute for Interdisciplinary Science & Technology (NIIST) 695019 Thiruvananthapuram India
| | - Matthias Epple
- Inorganic Chemistry and Center for Nanointegration Duisburg‐Essen (CeNIDE) University of Duisburg‐Essen Universitaetsstr. 5–7 45117 Essen Germany
| | - Christoph Janiak
- Institut für Anorganische Chemie 1 Universität Düsseldorf Universitätsstr. 1 40225 Düsseldorf Germany
| |
Collapse
|
61
|
Foster AW, Pernil R, Patterson CJ, Scott AJP, Pålsson LO, Pal R, Cummins I, Chivers PT, Pohl E, Robinson NJ. A tight tunable range for Ni(II) sensing and buffering in cells. Nat Chem Biol 2017; 13:409-414. [PMID: 28166209 PMCID: PMC5365139 DOI: 10.1038/nchembio.2310] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 12/01/2016] [Indexed: 11/08/2022]
Abstract
The metal affinities of metal-sensing transcriptional regulators co-vary with cellular metal concentrations over more than 12 orders of magnitude. To understand the cause of this relationship, we determined the structure of the Ni(II) sensor InrS and then created cyanobacteria (Synechocystis PCC 6803) in which transcription of genes encoding a Ni(II) exporter and a Ni(II) importer were controlled by InrS variants with weaker Ni(II) affinities. Variant strains were sensitive to elevated nickel and contained more nickel, but the increase was small compared with the change in Ni(II) affinity. All of the variant sensors retained the allosteric mechanism that inhibits DNA binding following metal binding, but a response to nickel in vivo was observed only when the sensitivity was set to respond in a relatively narrow (less than two orders of magnitude) range of nickel concentrations. Thus, the Ni(II) affinity of InrS is attuned to cellular metal concentrations rather than the converse.
Collapse
Affiliation(s)
- Andrew W. Foster
- Department of Biosciences, Durham University, DH1 3LE, UK
- Department of Chemistry, Durham University, DH1 3LE, UK
| | - Rafael Pernil
- Department of Biosciences, Durham University, DH1 3LE, UK
- Department of Chemistry, Durham University, DH1 3LE, UK
| | - Carl J. Patterson
- Department of Biosciences, Durham University, DH1 3LE, UK
- Department of Chemistry, Durham University, DH1 3LE, UK
| | | | | | - Robert Pal
- Department of Chemistry, Durham University, DH1 3LE, UK
| | - Ian Cummins
- Department of Biosciences, Durham University, DH1 3LE, UK
| | - Peter T. Chivers
- Department of Biosciences, Durham University, DH1 3LE, UK
- Department of Chemistry, Durham University, DH1 3LE, UK
| | - Ehmke Pohl
- Department of Biosciences, Durham University, DH1 3LE, UK
- Department of Chemistry, Durham University, DH1 3LE, UK
| | - Nigel J. Robinson
- Department of Biosciences, Durham University, DH1 3LE, UK
- Department of Chemistry, Durham University, DH1 3LE, UK
| |
Collapse
|
62
|
Schmued L, Raymick J. Introducing Euro-Glo, a rare earth metal chelate with numerous applications for the fluorescent localization of myelin and amyloid plaques in brain tissue sections. J Neurosci Methods 2017; 279:79-86. [PMID: 27939963 DOI: 10.1016/j.jneumeth.2016.12.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 12/01/2016] [Accepted: 12/03/2016] [Indexed: 11/19/2022]
Abstract
The vast majority of fluorochromes are organic in nature and none of the few existing chelates have been applied as histological tracers for localizing brain anatomy and pathology. NEW METHOD In this study we have developed and characterized a Europium chelate with the ability to fluorescently label normal and pathological myelin in control and toxicant-exposed rats, as well as the amyloid plaques in aged AD/Tg mice. RESULTS This study demonstrates how Euro-Glo can be used for the detailed labeling of both normal myelination in the control rat as well as myelin pathology in the kainic acid exposed rat. In addition, this study demonstrates how E-G will label the shell of amyloid plaques in an AD/Tg mouse model of Alzheimer's disease a red color, while the plaque core appears blue in color. The observed E-G staining pattern is compared with that of well characterized tracers specific for the localization of myelin (Black-Gold II), degenerating neurons (Fluoro-Jade C), A-beta aggregates (Amylo-Glo) and glycolipids (PAS). COMPARISONS WITH EXISTING METHODS This study represents the first time a rare earth metal (REM) chelate has been used as a histochemical tracer in the brain. This novel tracer, Euro-Glo (E-G), exhibits numerous advantages over conventional organic fluorophores including high intensity emission, high resistance to fading, compatibility with multiple labeling protocols, high Stoke's shift value and an absence of bleed-through of the signal through other filters. CONCLUSIONS Euro-Glo represents the first fluorescent metal chelate to be used as a histochemical tracer, specifically to localize normal and pathological myelin as well as amyloid plaques.
Collapse
Affiliation(s)
- Larry Schmued
- National Center for Toxicological Research, Food and Drug Administration, 3900 NCTR Rd Jefferson AR, 72079, United States.
| | - James Raymick
- National Center for Toxicological Research, Food and Drug Administration, 3900 NCTR Rd Jefferson AR, 72079, United States.
| |
Collapse
|
63
|
|
64
|
Casanovas B, Zinna F, Di Bari L, El Fallah MS, Font-Bardía M, Vicente R. Circularly polarized luminescence on dinuclear Tb(iii) and Eu(iii) complexes with (S-) and (R-) 2-phenylpropionate. Dalton Trans 2017; 46:6349-6357. [DOI: 10.1039/c6dt04686j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Four dinuclear chiral compounds [Ln2(S/R-L)6(phen)2]2·2.5·S/R-HL in which Ln = Tb,Eu and S/R-HL = (S)-(+)- or (R)-(−)-phenylpropionic acid are reported. Luminescence study, including CPL spectra, is also reported.
Collapse
Affiliation(s)
- Berta Casanovas
- Departament de Química Inorgànica i Orgànica
- Secció de Química Inorgànica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Francesco Zinna
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- I-56124 Pisa
- Italy
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- I-56124 Pisa
- Italy
| | - Mohamed Salah El Fallah
- Departament de Química Inorgànica i Orgànica
- Secció de Química Inorgànica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Mercè Font-Bardía
- Departament de Mineralogia
- Cristallografia i Dipòsits Minerals and Unitat de Difracció de R-X
- Centre Científic i Tecnològic de la Universitat de Barcelona (CCiTUB)
- Universitat de Barcelona
- 08028 Barcelona
| | - Ramon Vicente
- Departament de Química Inorgànica i Orgànica
- Secció de Química Inorgànica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| |
Collapse
|
65
|
Shuvaev S, Pal R, Parker D. Selectively switching on europium emission in drug site one of human serum albumin. Chem Commun (Camb) 2017; 53:6724-6727. [DOI: 10.1039/c7cc03071a] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A luminescent europium probe has been discovered that binds selectively to drug-site I in human serum albumin, signalled by a ‘switching on’ of europium emission, and accompanied by strong induced circularly polarised luminescence.
Collapse
Affiliation(s)
- Sergey Shuvaev
- Department of Chemistry
- Durham University
- Durham DH1 3LE
- UK
| | - Robert Pal
- Department of Chemistry
- Durham University
- Durham DH1 3LE
- UK
| | - David Parker
- Department of Chemistry
- Durham University
- Durham DH1 3LE
- UK
| |
Collapse
|
66
|
Surender EM, Bradberry SJ, Bright SA, McCoy CP, Williams DC, Gunnlaugsson T. Luminescent Lanthanide Cyclen-Based Enzymatic Assay Capable of Diagnosing the Onset of Catheter-Associated Urinary Tract Infections Both in Solution and within Polymeric Hydrogels. J Am Chem Soc 2016; 139:381-388. [DOI: 10.1021/jacs.6b11077] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Esther M. Surender
- School
of Chemistry, Trinity Biomedical Sciences Institute (TBSI), Trinity
College Dublin, The University of Dublin, Dublin 2, Ireland
| | - Samuel J. Bradberry
- School
of Chemistry, Trinity Biomedical Sciences Institute (TBSI), Trinity
College Dublin, The University of Dublin, Dublin 2, Ireland
| | - Sandra A. Bright
- School
of Biochemistry and Immunology, Trinity Biomedical Sciences Institute
(TBSI), Trinity College Dublin, The University of Dublin, Dublin 2, Ireland
| | - Colin P. McCoy
- School
of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, Northern Ireland, U.K
| | - D. Clive Williams
- School
of Biochemistry and Immunology, Trinity Biomedical Sciences Institute
(TBSI), Trinity College Dublin, The University of Dublin, Dublin 2, Ireland
| | - Thorfinnur Gunnlaugsson
- School
of Chemistry, Trinity Biomedical Sciences Institute (TBSI), Trinity
College Dublin, The University of Dublin, Dublin 2, Ireland
| |
Collapse
|
67
|
Daumann LJ, Werther P, Ziegler MJ, Raymond KN. Siderophore inspired tetra- and octadentate antenna ligands for luminescent Eu(III) and Tb(III) complexes. J Inorg Biochem 2016; 162:263-273. [DOI: 10.1016/j.jinorgbio.2016.01.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 01/05/2016] [Accepted: 01/07/2016] [Indexed: 01/09/2023]
|
68
|
Exploring the Effect of Ligand Structural Isomerism in Langmuir-Blodgett Films of Chiral Luminescent EuIIISelf-Assemblies. Chemistry 2016; 22:9709-23. [DOI: 10.1002/chem.201600560] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Indexed: 11/07/2022]
|
69
|
Ligi K, Enkvist E, Uri A. Deoxygenation Increases Photoluminescence Lifetime of Protein-Responsive Organic Probes with Triplet–Singlet Resonant Energy Transfer. J Phys Chem B 2016; 120:4945-54. [DOI: 10.1021/acs.jpcb.6b03342] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kadri Ligi
- Institute of Chemistry, University of Tartu, 14a Ravila
Street, 50411 Tartu, Estonia
| | - Erki Enkvist
- Institute of Chemistry, University of Tartu, 14a Ravila
Street, 50411 Tartu, Estonia
| | - Asko Uri
- Institute of Chemistry, University of Tartu, 14a Ravila
Street, 50411 Tartu, Estonia
| |
Collapse
|
70
|
Chandra A, Singh K, Singh S, Sivakumar S, Patra AK. A luminescent europium(iii)–platinum(ii) heterometallic complex as a theranostic agent: a proof-of-concept study. Dalton Trans 2016; 45:494-7. [DOI: 10.1039/c5dt04470g] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
We present a luminescent heterometallic multifunctional theranostic Eu–Pt2 complex, [{cis-PtCl2(DMSO)}2Eu(L)(H2O)], possessing two cytotoxic Pt-centers with four DNA-binding sites, which shows intracellular Eu-based red luminescence sensitized by platinum based MLCT excited states.
Collapse
Affiliation(s)
- Anirban Chandra
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Khushbu Singh
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Swati Singh
- Department of Chemical Engineering and Centre for Environmental Science and Engineering
- Indian Institute of Technology Kanpur
- Kanpur-208016
- India
| | - Sri Sivakumar
- Department of Chemical Engineering and Centre for Environmental Science and Engineering
- Indian Institute of Technology Kanpur
- Kanpur-208016
- India
| | - Ashis K. Patra
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| |
Collapse
|
71
|
Frawley AT, Pal R, Parker D. Very bright, enantiopure europium(iii) complexes allow time-gated chiral contrast imaging. Chem Commun (Camb) 2016; 52:13349-13352. [DOI: 10.1039/c6cc07313a] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Chiral image contrast is reported with very bright enantiopure europium complexes that emit circularly polarized light.
Collapse
Affiliation(s)
| | - Robert Pal
- Department of Chemistry
- Durham University
- Durham DH1 3LE
- UK
| | - David Parker
- Department of Chemistry
- Durham University
- Durham DH1 3LE
- UK
| |
Collapse
|
72
|
Janicki R, Kędziorski A, Mondry A. The first example of ab initio calculations of f–f transitions for the case of [Eu(DOTP)]5− complex—experiment versus theory. Phys Chem Chem Phys 2016; 18:27808-27817. [DOI: 10.1039/c6cp05284c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Structure, IR and UV-vis-NIR spectra of the [Eu(DOTP)]5− complex in single crystals were studied experimentally. Ab initio calculations of the excited states of the [Eu(DOTP)]5− complex provide new insights into the interpretation of the observed f–f electronic transitions spectra.
Collapse
Affiliation(s)
- Rafał Janicki
- University of Wrocław
- Faculty of Chemistry
- 50-383 Wrocław
- Poland
| | - Andrzej Kędziorski
- Nicolaus Copernicus University
- Faculty of Physics
- Astronomy and Informatics
- Address Toruń
- Institute of Physics
| | - Anna Mondry
- University of Wrocław
- Faculty of Chemistry
- 50-383 Wrocław
- Poland
| |
Collapse
|
73
|
Blackburn OA, Edkins RM, Faulkner S, Kenwright AM, Parker D, Rogers NJ, Shuvaev S. Electromagnetic susceptibility anisotropy and its importance for paramagnetic NMR and optical spectroscopy in lanthanide coordination chemistry. Dalton Trans 2016; 45:6782-800. [DOI: 10.1039/c6dt00227g] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Electromagnetic susceptibility anisotropy can explain the spectroscopy and magnetism of lanthanide containing systems, but current theories have limitations.
Collapse
Affiliation(s)
| | | | | | | | - David Parker
- Department of Chemistry
- Durham University
- Durham
- UK
| | | | | |
Collapse
|
74
|
George TM, Krishna MS, Reddy MLP. A lysosome targetable luminescent bioprobe based on a europium β-diketonate complex for cellular imaging applications. Dalton Trans 2016; 45:18719-18729. [DOI: 10.1039/c6dt03833f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A unique bright luminescent europium coordination compound with excellent biocompatibility has been developed that serves as a selective bioprobe for particular organelles within the cells.
Collapse
Affiliation(s)
- T. M. George
- AcSIR-Academy of Scientific & Innovative Research
- Thiruvananthapuram
- India
- Materials Science and Technology Division
- National Institute for Interdisciplinary Science and Technology (NIIST)
| | - Mahesh S. Krishna
- Cardiovascular Diseases and Diabetes Biology Lab
- Rajiv Gandhi Centre for Biotechnology
- Thiruvananthapuram
- India
| | - M. L. P. Reddy
- AcSIR-Academy of Scientific & Innovative Research
- Thiruvananthapuram
- India
- Materials Science and Technology Division
- National Institute for Interdisciplinary Science and Technology (NIIST)
| |
Collapse
|
75
|
Daumann LJ, Tatum DS, Andolina CM, Pacold JI, D’Aléo A, Law GL, Xu J, Raymond KN. Effects of Ligand Geometry on the Photophysical Properties of Photoluminescent Eu(III) and Sm(III) 1-Hydroxypyridin-2-one Complexes in Aqueous Solution. Inorg Chem 2015; 55:114-24. [DOI: 10.1021/acs.inorgchem.5b01927] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lena J. Daumann
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemistry, University of California, Berkeley, California 94720-1460, United States
| | - David S. Tatum
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemistry, University of California, Berkeley, California 94720-1460, United States
| | - Christopher M. Andolina
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemistry, University of California, Berkeley, California 94720-1460, United States
| | - Joseph I. Pacold
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemistry, University of California, Berkeley, California 94720-1460, United States
| | - Anthony D’Aléo
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemistry, University of California, Berkeley, California 94720-1460, United States
| | - Ga-lai Law
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemistry, University of California, Berkeley, California 94720-1460, United States
| | - Jide Xu
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemistry, University of California, Berkeley, California 94720-1460, United States
| | - Kenneth N. Raymond
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemistry, University of California, Berkeley, California 94720-1460, United States
| |
Collapse
|
76
|
Starck M, Pal R, Parker D. Structural Control of Cell Permeability with Highly Emissive Europium(III) Complexes Permits Different Microscopy Applications. Chemistry 2015; 22:570-80. [DOI: 10.1002/chem.201504103] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Indexed: 12/13/2022]
|
77
|
Bui AT, Grichine A, Brasselet S, Duperray A, Andraud C, Maury O. Unexpected Efficiency of a Luminescent Samarium(III) Complex for Combined Visible and Near-Infrared Biphotonic Microscopy. Chemistry 2015; 21:17757-61. [DOI: 10.1002/chem.201503711] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 09/22/2015] [Indexed: 02/06/2023]
|
78
|
Andres J, Borbas KE. Expanding the Versatility of Dipicolinate-Based Luminescent Lanthanide Complexes: A Fast Method for Antenna Testing. Inorg Chem 2015; 54:8174-6. [PMID: 26288077 DOI: 10.1021/acs.inorgchem.5b01579] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A dipicolinate (dpa)-based platform for the rapid testing of potential lanthanide-sensitizing antennae was developed; 4-methyl-7-O-alkylcoumarin-appended dpa could sensitize four lanthanides. The platform could be used to estimate the photophysical properties of a more difficult-to-prepare 1,4,7,10-tetraazacyclododecane-1,4,7-triacetic acid based structure carrying the same antenna.
Collapse
Affiliation(s)
- Julien Andres
- Department of Chemistry, Biomedical Center, Uppsala University , 75 123 Uppsala, Sweden
| | - K Eszter Borbas
- Department of Chemistry, Biomedical Center, Uppsala University , 75 123 Uppsala, Sweden
| |
Collapse
|
79
|
Senthil Kumar K, Schäfer B, Lebedkin S, Karmazin L, Kappes MM, Ruben M. Highly luminescent charge-neutral europium(iii) and terbium(iii) complexes with tridentate nitrogen ligands. Dalton Trans 2015; 44:15611-9. [DOI: 10.1039/c5dt02186c] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
We report the synthesis and efficient photoluminescence of charge-neutral lanthanide (Ln = Eu3+ and Tb3+) complexes based on pyrazole–pyridine–tetrazole and pyrazole–pyridine–triazole ligands.
Collapse
Affiliation(s)
- Kuppusamy Senthil Kumar
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS)
- CNRS-Université de Strasbourg
- 67034 Strasbourg Cedex 2
- France
| | - Bernhard Schäfer
- Institute of Nanotechnology
- Karlsruhe Institute of Technology (KIT)
- Eggenstein-Leopoldshafen
- Germany
| | - Sergei Lebedkin
- Institute of Nanotechnology
- Karlsruhe Institute of Technology (KIT)
- Eggenstein-Leopoldshafen
- Germany
| | - Lydia Karmazin
- Service de Radiocristallographie
- Institut de Chimie de Strasbourg UMR7177 CNRS-Université de Strasbourg
- 67008 Strasbourg Cedex
- France
| | - Manfred M. Kappes
- Institute of Nanotechnology
- Karlsruhe Institute of Technology (KIT)
- Eggenstein-Leopoldshafen
- Germany
- Institute of Physical Chemistry
| | - Mario Ruben
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS)
- CNRS-Université de Strasbourg
- 67034 Strasbourg Cedex 2
- France
- Institute of Nanotechnology
| |
Collapse
|
80
|
Francis B, Heering C, Freire RO, Reddy MLP, Janiak C. Achieving visible light excitation in carbazole-based Eu3+–β-diketonate complexes via molecular engineering. RSC Adv 2015. [DOI: 10.1039/c5ra18819a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
A series of visible light excited Eu3+–carbazole based β-diketonate complexes has been developed by molecular engineering.
Collapse
Affiliation(s)
- Biju Francis
- CSIR-Network of Institutes for Solar Energy
- National Institute for Interdisciplinary Science & Technology (NIIST)
- Thiruvananthapuram-695 019
- India
- Universität Düsseldorf
| | - Christian Heering
- Universität Düsseldorf
- Institut für Anorganische Chemie 1
- Universitätsstr. 1
- 40225 Düsseldorf
- Germany
| | - Ricardo O. Freire
- Pople Computational Chemistry Laboratory
- Universidade Federal de Sergipe
- Sao Cristovaáo
- Brazil
| | - M. L. P. Reddy
- CSIR-Network of Institutes for Solar Energy
- National Institute for Interdisciplinary Science & Technology (NIIST)
- Thiruvananthapuram-695 019
- India
| | - Christoph Janiak
- Universität Düsseldorf
- Institut für Anorganische Chemie 1
- Universitätsstr. 1
- 40225 Düsseldorf
- Germany
| |
Collapse
|