Cette recherche s'applique uniquement aux ressources en bibliothèque.
12 résultats
Trier par:
Ajouter à la liste:
Étendre à toutes les références (sans texte intégral)
    • Plusieurs versions

    Dynamic nuclear polarization of quadrupolar nuclei using cross polarization from protons: surface-enhanced aluminium-27 NMR

    Vitzthum, Veronika, Miéville, Pascal, Carnevale, Diego, Caporini, Marc A, Gajan, David, Copéret, Christophe, Lelli, Moreno, Zagdoun, Alexandre, Rossini, Aaron J, Lesage, Anne, Emsley, Lyndon, Bodenhausen, Geoffrey
    Chemical communications (Cambridge, England), 14 February 2012, Vol.48(14), pp.1988-90 [Revue évaluée par les pairs]

    • Article
    Sélectionner

    Dynamic aggregation of the mid-sized gadolinium complex {Ph4[Gd(DTTA)(H2O)2]− 3}

    Jaccard, Hugues
    Miéville, Pascal, Cannizzo, Caroline, Mayer, Cédric, Helm, Lothar
    JBIC Journal of Biological Inorganic Chemistry. - 2014/19/2/145-159
    Disponible
    Plus…
    Titre: Dynamic aggregation of the mid-sized gadolinium complex {Ph4[Gd(DTTA)(H2O)2]− 3}
    Auteur: Jaccard, Hugues
    Contributeur: Miéville, Pascal; Cannizzo, Caroline; Mayer, Cédric; Helm, Lothar
    Sujet: Gadolinium - Imaging agent - Relaxometry - Aggregation - π -stacking - AFA : Anisotropic Florence approach - DO3A : Tetraazacylcododecanetriacetic acid - DOSY : Diffusion-ordered spectroscopy - DSS : 4,4-Dimethyl-4-silapentane-1-sulfonic acid - ESI : Electrospray ionization - FFC : Fast field cycling - H5DTTA : Diethylenetriaminetetraacetic acid - HPLC : High-performance liquid chromatography - MRI : Magnetic resonance imaging - MS : Mass spectrometry - NMRD : NMR dispersion - Ph4DTTA3 : 1,3,5-Tris{4-[(bis{2-[bis(carboxymethyl)amino]ethyl}amino)methyl]phenyl}benzene - RFB : Rast-Fries-Belorizky - SBM : Solomon-Bloembergen-Morgan - ZFS : Zero-field splitting
    Description: A compound binding three Gd3+ ions, {Ph4[Gd(DTTA)(H2O)2]− 3} (where H5DTTA is diethylenetriaminetetraacetic acid), has been synthesized around a hydrophobic center made up of four phenyl rings. In aqueous solution the molecules start to self-aggregate at concentrations well below 1mM as shown by the increase of rotational correlation times and by the decrease of the translational self-diffusion constant. NMR spectra recorded in aqueous solution of the diamagnetic analogue {Ph4[Y(DTTA)(H2O)2]− 3} show that the aggregation is dynamic and due to intermolecular π-stacking interactions between the hydrophobic aromatic centers. From estimations of effective radii, it can be concluded that the aggregates are composed of two to three monomers. The paramagnetic {Ph4[Gd(DTTA)(H2O)2]− 3} exhibits concentration-dependent 1H NMR relaxivities with high values of approximately 50mM−1s−1 (30MHz, 25°C) at gadolinium concentrations above 20mM. A combined analysis of 1H NMR dispersion profiles measured at different concentrations of the compound and 17O NMR data measured at various temperatures was performed using different theoretical approaches. The fitted parameters showed that the increase in relaxivity with increasing concentration of the compound is due to slower global rotational motion and an increase of the Lipari-Szabo order parameter S 2.
    Publication en relation: JBIC Journal of Biological Inorganic Chemistry. - 2014/19/2/145-159
    Document hôte: JBIC Journal of Biological Inorganic Chemistry
    Identifiant: 10.1007/s00775-013-1036-y (DOI)

    • Plusieurs versions

    A magnetic tunnel to shelter hyperpolarized fluids

    Milani, Jonas, Vuichoud, Basile, Bornet, Aurélien, Miéville, Pascal, Mottier, Roger, Jannin, Sami, Bruker Biospin AG, Industriestrasse 26, Ch-8117 Fällanden, Bodenhausen, Geoffrey, Département de Chimie, École Normale Supérieure-Psl Research University, 24 Rue Lhomond, F-75005 Paris, Sorbonne Universités, Upmc Univ Paris 06, Lbm, 4 Place Jussieu, F-75005 Paris, Cnrs, Umr 7203 Lbm, F-75005 Paris
    Review of Scientific Instruments, 15 February 2015, Vol.86(2) [Revue évaluée par les pairs]

    • Plusieurs versions

    In-Vivo Detection and Tracking of T Cells in Various Organs in a Melanoma Tumor Model by 19F-Fluorine MRS/MRI

    Christine Gonzales, Hikari A I Yoshihara, Nahzli Dilek, Julie Leignadier, Melita Irving, Pascal Mieville, Lothar Helm, Olivier Michielin, Juerg Schwitter
    PloS one, 01 January 2016, Vol.11(10), p.e0164557 [Revue évaluée par les pairs]

    • Plusieurs versions

    NMR of insensitive nuclei enhanced by dynamic nuclear polarization

    Miéville, Pascal, Jannin, Sami, Helm, Lothar, Bodenhausen, Geoffrey
    Chimia, 2011, Vol.65(4), pp.260-3 [Revue évaluée par les pairs]

    • Film
    Sélectionner

    Athlé Valais - Wallis

    Miéville, Pascal
    Fédération valaisanne d'athlétisme
    Troistorrents : Sismic
    2008
    Recherche de la disponibilité
    Plus…
    Chargement
    Erreur de chargement
    Titre: Athlé Valais - Wallis / un film réalisé par Pascal Miéville ; coprod. par la FVA-WLV
    Auteur: Miéville, Pascal
    Contributeur: Fédération valaisanne d'athlétisme
    Editeur: Troistorrents : Sismic
    Date: 2008
    Collation: 1 DVD-vidéo (32 min.) ; 19 cm
    Sujet RERO: Athlétisme - Fédération valaisanne d'athlétisme (Valais) - Valais (Suisse)
    Sujet RERO - forme: [DVD vidéo]
    Note: Langues: Français, Deutsch, Italiano, Romanche, English
    Classification: vs-bvs-sys 05.05.09
    cdu-vsprat 796.42
    cdu-vsmart VS 796.42
    No RERO: R005394090
    Permalien:
    http://data.rero.ch/01-R005394090/html?view=VS_V1

    • Plusieurs versions

    Collisional cross-section of water molecules in vapour studied by means of 1 H relaxation in NMR

    Mammoli, Daniele, Canet, Estel, Buratto, Roberto, Miéville, Pascal, Helm, Lothar, Bodenhausen, Geoffrey
    Scientific reports, 23 December 2016, Vol.6, p.38492 [Revue évaluée par les pairs]

    • Plusieurs versions

    Dynamic aggregation of the mid-sized gadolinium complex {Ph 4 [Gd(DTTA)(H 2 O) 2 ] − 3 }

    Jaccard, Hugues, Miéville, Pascal, Cannizzo, Caroline, Mayer, Cédric, Helm, Lothar
    JBIC Journal of Biological Inorganic Chemistry, 2014, Vol.19(2), pp.145-159 [Revue évaluée par les pairs]

    • Plusieurs versions

    Metabolic Symbiosis Enables Adaptive Resistance to Anti-angiogenic Therapy that Is Dependent on mTOR Signaling

    Elizabeth Allen, Pascal Miéville, Carmen m. Warren, Sadegh Saghafinia, Leanne Li, Mei-Wen Peng, Douglas Hanahan
    Cell reports (Cambridge), 01 May 2016, Vol.15(6), pp.1144-1160 [Revue évaluée par les pairs]

    • Plusieurs versions

    Photochromic Torsional Switch (PTS): a light-driven actuator for the dynamic tuning of π-conjugation extension

    Maciejewski, Jan, Sobczuk, Adam, Claveau, Alexis, Nicolai, Adrien, Petraglia, Riccardo, Cervini, Luca, Baudat, Emilie, Miéville, Pascal, Fazzi, Daniele, Corminboeuf, Clemence, Sforazzini, Giuseppe
    Chemical science, 01 January 2017, Vol.8(1), pp.361-365 [Revue évaluée par les pairs]