11 results on '"Olivier Maury"'
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2. Thiochromenocarbazole imide: a new organic dye with first utility in large area flexible electroluminescent devices
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José María Andrés Castán, C. Amruth, Pierre Josse, Laura Abad Galan, Pablo Simón Marqués, Magali Allain, Olivier Maury, Tangui Le Bahers, Philippe Blanchard, Cyrille Monnereau, Gregory C. Welch, Clément Cabanetos, MOLTECH-Anjou, Université d'Angers (UA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), University of Calgary, Laboratoire de Chimie - UMR5182 (LC), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Building Blocks for Future Electronics Laboratory (2B-FUEL), Yonsei University-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), ANR-18-EURE-0012,LumoMat-E,Molecular Materials for Organic Electronics/Photonics(2018), and ANR-20-CE05-0029,BTXI-APOGEE,Benzothioxanthene et dérivés : motifs prometteurs pour l'électronique organique(2020)
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[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry ,[CHIM.ORGA]Chemical Sciences/Organic chemistry ,Materials Chemistry ,General Materials Science - Abstract
International audience; Synthesis and use of the unprecedented thiochromenocarbazole imide (TCI) for the preparation of printed, large-area and flexible OLEDs.
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- 2022
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3. Design of polyazamacrocyclic Gd3+ theranostic agents combining magnetic resonance imaging and two-photon photodynamic therapy
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Gyula Tircsó, Nadège Hamon, Gyoergy Trencseny, Kamel Hadj-Kaddour, Mélanie Onofre, Christophe Nguyen, Eniko Molnar, Raphaël Tripier, Olivier Maury, Cyrille Monnereau, Laura Abad Galán, János Kiss, Jonathan Mendy, Maryline Beyler, Magali Gary-Bobo, Laboratoire de Chimie - UMR5182 (LC), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École normale supérieure - Lyon (ENS Lyon)-Institut de Chimie du CNRS (INC), Chimie, Electrochimie Moléculaires et Chimie Analytique (CEMCA), Université de Brest (UBO)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Brestois Santé Agro Matière (IBSAM), Université de Brest (UBO), Institut des Biomolécules Max Mousseron [Pôle Chimie Balard] (IBMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), University of Debrecen Egyetem [Debrecen], École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), and ANR-16-CE07-0015,SADAM,Diagnostiquer et guérir par des agents azamacrocycliques multimodaux(2016)
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Gd(III) complexes ,Gadolinium ,medicine.medical_treatment ,chemistry.chemical_element ,Photodynamic therapy ,[CHIM.INOR]Chemical Sciences/Inorganic chemistry ,010402 general chemistry ,01 natural sciences ,Inorganic Chemistry ,chemistry.chemical_compound ,picolinate ,PDT ,Two-photon excitation microscopy ,medicine ,[CHIM]Chemical Sciences ,Solubility ,Oxygen singlet ,Aqueous solution ,medicine.diagnostic_test ,[CHIM.ORGA]Chemical Sciences/Organic chemistry ,010405 organic chemistry ,Singlet oxygen ,Magnetic resonance imaging ,Combinatorial chemistry ,0104 chemical sciences ,3. Good health ,Solvent ,chemistry ,Pyclen ,Relaxivity ,MRI - Abstract
International audience; New “all-in-one” theranostic systems, combining a magnetic resonance imaging (MRI) contrast agent with a biphotonic photodynamic therapy (2P-PDT) photosensitiser generating cytotoxic singlet oxygen, were envisaged and synthesised. They are based on azamacrocycles, regiospecifically functionalised by two-photon PDT π-conjugated dibromobenzene–picolinate photosensitisers and acetate, able to complex gadolinium(III) and allow an MRI signal. Our approach was to use two different macrocyclic platforms, tacn and pyclen, for modulating simultaneously the structures, properties and solubility of the complexes. Photophysical properties of the ligands and their gadolinium(III) complexes were fully investigated. The Gd3+–pyclen derivative showed the best water solubility and the greatest value of singlet oxygen generation of the series with ΦΔ = 0.53 enabling in vitro studies. The biological PDT activity under mono and biphotonic excitation was evaluated in human breast cancer cells (MCF-7). While a very low dark toxicity was observed, an almost total cell death was induced after only 3 successive irradiations of 1.57 s. Finally, its relaxivity was measured in a DMSO/H2O solvent mixture with r1p = 11.21 and r2p = 24.60 mM−1 s−1 at 3.0 T and T1- and T2-weighted phantom MR images were obtained highlighting a first generation of “all-in-one” PDT/MRI theranostic agents.
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- 2021
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4. Crystallophore: a versatile lanthanide complex for protein crystallography combining nucleating effects, phasing properties, and luminescence
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Louise Lassalle, Sebastiano Di Pietro, François Riobé, Nicolas Coquelle, Delphine Pitrat, Dominique Madern, Eric Girard, Charles-Adrien Arnaud, Sylvain Engilberge, Olivier Maury, Jean-Christophe Mulatier, Cécile Breyton, Institut de biologie structurale (IBS - UMR 5075 ), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire de Chimie - UMR5182 (LC), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-École normale supérieure - Lyon (ENS Lyon)-Institut de Chimie du CNRS (INC)
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0301 basic medicine ,Lanthanide ,Chemistry ,Chemistry (all) ,chemistry.chemical_element ,Terbium ,General Chemistry ,Phase problem ,law.invention ,[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry ,03 medical and health sciences ,Crystallography ,030104 developmental biology ,law ,Atom ,X-ray crystallography ,Crystallization ,Luminescence ,ComputingMilieux_MISCELLANEOUS ,Macromolecule - Abstract
Macromolecular crystallography suffers from two major issues: getting well-diffracting crystals and solving the phase problem inherent to large macromolecules. Here, we describe the first example of a lanthanide complex family named “crystallophore” (Xo4), which contributes to tackling both bottlenecks. This terbium complex, Tb–Xo4, is an appealing agent for biocrystallography, combining the exceptional phasing power of the Tb(III) heavy atom with powerful nucleating properties, providing ready-to-use crystals for structure determination. Furthermore, protein/Tb–Xo4 co-crystals can be easily detected and discriminated from other crystalline by-products using luminescence. We demonstrate the potential of this additive for the crystallisation and structure determination of eight proteins, two of whose structures were unknown.
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- 2017
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5. Two-photon multiplexing bio-imaging using a combination of Eu- and Tb-bioprobes
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Virginie Placide, Delphine Pitrat, Alain Duperray, Alexei Grichine, Chantal Andraud, Anh Thy Bui, Olivier Maury, Laboratoire de Chimie - UMR5182 (LC), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École normale supérieure - Lyon (ENS Lyon)-Institut de Chimie du CNRS (INC), INSERM U823, équipe 8 (Immunologie Analytique des Pathologies Chroniques), Institut d'oncologie/développement Albert Bonniot de Grenoble (INSERM U823), Université Joseph Fourier - Grenoble 1 (UJF)-CHU Grenoble-EFS-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Joseph Fourier - Grenoble 1 (UJF)-CHU Grenoble-EFS-Institut National de la Santé et de la Recherche Médicale (INSERM), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
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Lanthanide ,Photons ,Luminescent Agents ,Microscope ,Materials science ,Nanotechnology ,Multiplexing ,Molecular Imaging ,law.invention ,[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry ,Inorganic Chemistry ,Bio imaging ,Europium ,Two-photon excitation microscopy ,law ,Cell Line, Tumor ,Research studies ,Humans ,Terbium ,ComputingMilieux_MISCELLANEOUS ,Excitation - Abstract
During the course of our research studies aiming to combine the unique photophysical properties of lanthanide complexes and the intrinsic advantage of a nonlinear two-photon excitation, we described the proof-of-concept of a biphotonic multiplexing bio-imaging experiment. To that end, a new Tb-luminescent bioprobe [TbL(2)] was designed using the TACN-trispicolinate platform. The biphotonic imaging of T24 fixed cells stained either with [TbL(2)] or with the already described [EuL(1)] complexes is reported. Finally the biphotonic multiplexing experiment was performed using a combination of both probes using the spectral mode of the two-photon microscope.
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- 2015
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6. Magnetic and photo-physical investigations into DyIII and YbIII complexes involving tetrathiafulvalene ligand
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Khaled Soussi, Bertrand Lefeuvre, Olivier Maury, Fabrice Pointillart, Yannick Guyot, B. Le Guennic, Olivier Cador, Julie Jung, Lahcène Ouahab, Stéphane Golhen, Institut des Sciences Chimiques de Rennes (ISCR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut Lumière Matière [Villeurbanne] (ILM), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie - UMR5182 (LC), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École normale supérieure - Lyon (ENS Lyon)-Institut de Chimie du CNRS (INC), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
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Lanthanide ,010405 organic chemistry ,010402 general chemistry ,01 natural sciences ,0104 chemical sciences ,Ion ,Inorganic Chemistry ,Crystallography ,chemistry.chemical_compound ,Magnetic anisotropy ,chemistry ,Computational chemistry ,Crystal field theory ,Ab initio quantum chemistry methods ,[CHIM]Chemical Sciences ,Molecule ,Isostructural ,ComputingMilieux_MISCELLANEOUS ,Tetrathiafulvalene - Abstract
Three lanthanide-based complexes involving a tetrathiafulvalene derivative (L) in which the lanthanide ion has a pseudo-D4d symmetry have been reported. One is a dinuclear compound of formula [Dy(hfac)3(L)]2 (1) while the two others are isostructural and described as mononuclear complexes of formulae [Ln(tta)3(L)]·xCH2Cl2 (LnIII = Dy and x = 1.41 (2); Yb and x = 2 (3)). The nuclearity of the species is driven by the nature of the ancillary ligands. Magnetic properties revealed that 1 and 3 behave as single molecule magnets, while 2 does not. The crystal field splitting of the ground multiplet state has been theoretically determined as well as the orientation of the easy axis of the ground MJ state. The results of ab initio calculations are in agreement with the experimental determinations of the anisotropy axis. Irradiation of the lowest-energy charge transfer bands of 3 led to an intense and resolved Yb-centred emission which can be correlated to the magnetic data. Thus 3 can be described as a redox-active luminescent field-induced single-molecule magnet.
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- 2015
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7. Design and synthesis of 4,4′-π-conjugated[2,2′]-bipyridines: a versatile class of tunable chromophores and fluorophores
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Nicolas Sandon, Olivier Maury, Hubert Le Bozec, Thierry Renouard, Adam Hilton, Jean-Paul Guégan, Loïc Toupet, and Philippe Dupau
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Stereochemistry ,Chemistry ,Protonation ,General Chemistry ,Chromophore ,Conjugated system ,Decomposition ,Acceptor ,Catalysis ,Metal ,Crystallography ,visual_art ,Materials Chemistry ,visual_art.visual_art_medium ,Absorption (chemistry) - Abstract
A series of 4,4′-disubstituted[2,2′]-bipyridines, featuring π-conjugated substituents such as donor-(acceptor-) substituted styryl, thienylvinyl, phenylimino and phenylazo groups, have been synthesized. X-Ray structures are provided for three ligands containing –CC–, –CN– and –NN– linkers, respectively. These chromophores display good to excellent thermal stabilities with decomposition temperatures of up to 350°C. The strong influence of the nature of the endgroups and π-linkers on the optical properties is discussed. The stepwise protonation of 4,4′-dibutylaminostyryl-[2,2′]-bipyridine and its coordination behavior to different metallic moieties [Zn(II), Hg(II), Pd(II), Re(I), Re(VII)] have also been investigated. It is found that the absorption and emission maxima can be easily tuned by these exogenous additives over a wide range of wavelengths (360
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- 2001
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8. Solution, solid state structure and fluorescence studies of 2,3-functionalized quinoxalines: evidence for a π-delocalized keto-enamine form with N–H···O intramolecular hydrogen bonds
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Olivier Maury, Abdelkrim Ramdani, Loïc Toupet, Hubert Le Bozec, Taibi Ben-Hadda, Pierre H. Dixneuf, Sghir Elkadiri, and Rachid Touzani
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Stereochemistry ,Hydrogen bond ,Condensation ,General Chemistry ,Medicinal chemistry ,Fluorescence ,Tautomer ,Catalysis ,Enamine ,chemistry.chemical_compound ,Delocalized electron ,Quinoxaline ,chemistry ,Intramolecular force ,Materials Chemistry - Abstract
Three quinoxaline derivatives 3, 4 and 5 were prepared by condensation of tetraones RC(O)–CH2–C(O)– (O)–CH2–C(O)R [1, R = Ph; 2, R = neo-Pen] with o-phenylenediamine or (R,R)-1,2-diaminocyclohexane. 1H, 13C and 15N NMR studies show that these derivatives are best described as their keto-enamine form with N–H···O intramolecular hydrogen bonds. This preferred tautomeric form is confirmed by X-ray structural studies of 3 and 5. Compounds 3 and 4, containing an extended delocalized π-system, exhibit fluorescence properties. In contrast, fluorescence is inhibited in 5, when the central aromatic part is replaced by a cyclohexyl group.
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- 2001
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9. First lanthanide dipolar complexes for second-order nonlinear optics
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Hubert Le Bozec, Joseph Zyss, Olivier Maury, Loïc Toupet, Isabelle Ledoux, and Katell Sénéchal
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Lanthanide ,Stereochemistry ,Chemistry ,Ligand ,Metals and Alloys ,Order (ring theory) ,Hyperpolarizability ,Nonlinear optics ,General Chemistry ,Catalysis ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,Crystallography ,Dipole ,Materials Chemistry ,Ceramics and Composites - Abstract
New push-pull NLO-phores based on lanthanide complexes (Ln = La, Gd, Dy, Yb) featuring an annelated dibutylaminophenyl functionalised terpyridyl ligand have been synthesised and shown to exhibit large first-order hyperpolarizability.
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- 2004
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10. [Untitled]
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Hubert Le Bozec, Olivier Maury, Thomas Le Bouder, Isabelle Ledoux, and Joseph Zyss
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Materials science ,Metals and Alloys ,Nonlinear optics ,General Chemistry ,Chromophore ,Photochemistry ,Catalysis ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,Covalent bond ,Polymer chemistry ,Materials Chemistry ,Ceramics and Composites ,Polyimide - Abstract
A new polyimide with covalently incorporated 4,4′-bis(dialkylaminostyryl)-2,2′-bipyridine chromophores is described which allows the synthesis of the corresponding NLO octupolar metallo-polymer.
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- 2001
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11. New paramagnetic ruthenium complexes via one-electron reduction of metallacumulenes
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Olivier Maury, Stéphane Rigaut, Daniel Touchard, Pierre H. Dixneuf, Institut de biologie et chimie des protéines [Lyon] (IBCP), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)
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chemistry.chemical_element ,010402 general chemistry ,Photochemistry ,01 natural sciences ,Catalysis ,law.invention ,chemistry.chemical_compound ,Paramagnetism ,law ,Materials Chemistry ,[CHIM]Chemical Sciences ,Moiety ,Electron paramagnetic resonance ,010405 organic chemistry ,Metals and Alloys ,Cumulene ,General Chemistry ,Hydrogen atom ,0104 chemical sciences ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,Ruthenium ,Unpaired electron ,chemistry ,Ceramics and Composites ,One-electron reduction - Abstract
International audience; One-electron reductions of [Cl(dppe)(2)Ru=C=C=CR2]PF6 (R = Ph, Me) and [Cl(dppe)(2)Ru=C=C=C=C=CPh2]PF6 with Co(C5H5)(2) provide radical species with the unpaired electron localized on the trisubstituted carbon atom of the cumulene moiety as shown by hydrogen atom capture and EPR spectroscopy.
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- 2001
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