Laboratoire Charles Coulomb UMR 5221 CNRS/UM2 (L2C)


Accueil > La Recherche > Axes & Equipes > Bio Nano Imagerie > Equipe : Spectroscopie et Imagerie RMN > Thème : Spectroscopie des nanomatériaux

Thème : Spectroscopie des nanomatériaux


Historically, we have successfully used high resolution solid state NMR to investigate the electronic, magnetic and dynamical properties of fullerenes, single-walled carbon nanotubes (SWNT) and some of their derivatives like functionalized, intercalated, hydrogenated, encapsulated SWNTs and composite systems, in collaboration with several Materials Science groups. For this purpose, we have developed isotopical engineering for the synthesis of SWNTS and a new magnetic purification method. For instance, our findings in peapods demonstrated, for the first time, the existence of strong magnetic shielding created by electronic ring currents circulating in the side walls of the nanotubes. In addition, we reported experimental evidences using 13C and 1H NMR that controlled chemical reactions as hydrogenation at the interior space of SWNT is, indeed, feasible at elevated pressure and temperature. We demonstrated that the rotational dynamics of the encapsulated C60Hx molecules are clearly hindered. Hence, SWNT have been shown to be potential ultra clean nano reactors and gas transport systems. Our successful experiments on encapsulated systems inside SWNT open completely new roads to understand and control confined chemical reactions at the nano scale.

Collaborations : D.E. Luzzi (MSE Philadelphia), A. Zettl (UCB, Berkeley), M. Mehring (Stuttgart), T. Wagberg (Umea), G. Bidan (CEA, Grenoble)

Fundings : ACI-Nano NACEP (2004-2006), Molecular Foundry Berkeley (2005-2007), Région Languedoc-Roussillon (2006)

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Dernières publications

+ Pedicel anatomy and histology in tomato vary according to genotype and water-deficit environment, affecting fruit mass doi link

Auteur(s): Simon J., Baptiste Christelle, Lartaud Marc, Verdeil Jean‐luc, Brunel Béatrice, Vercambre G., Génard Michel, Cardoso Maïda, Alibert E., Goze-Bac C., Bertin Nadia

(Article) Publié: Plant Science, vol. 321 p.111313 (2022)

+ Assessing Histology Structures by Ex Vivo MR Microscopy and Exploring the Link Between MRM-Derived Radiomic Features and Histopathology in Ovarian Cancer doi link

Auteur(s): Tardieu Marion, Lakhman Yulia, Khellaf Lakhdar, Cardoso Maida, Sgarbura Olivia, Colombo Pierre-Emmanuel, Crispin-Ortuzar Mireia, Sala Evis, Goze-Bac C., Nougaret Stephanie

(Article) Publié: Frontiers In Oncology, vol. 11 p.771848 (2022)
Texte intégral en Openaccess : pubmedcentral