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19-20 Jun 2025 Amiens (France)
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Invited speakersPr Alba Silipo Università degli Studi di Napoli Federico II Italy
Pr Alba Silipo is a Full Professor of Organic Chemistry since 2020. She obtained her PhD at the University of Naples Federico Il in 2004. In 2005- 2006 She was EU postdoctoral Marie Curie Fellowship under the supervision of Prof. J. Jiménez-Barbero in CSIC, Madrid. She leads a research group of around 25 researchers at the University of Naples Federico Il that has significant and long-standing expertise in glycomics and Glycoscience. They focus on: i) the determination of structure and conformation of glycans (combined use of organic, carbohydrate and analytical chemistry, NMR spectroscopy, Mass spectrometry) ii) Structural biology approaches (NMR, computational and biophysical methodologies) to assess conformation of glycans and glycoconjugates and their 3D structures iii) Study of molecular recognition events in glycans-protein interactions by spectroscopy (Iigand- and protein-based NMR), biophysical, computational techniques and characterization of 3D complex. She is co-author of 190 publications and a Patent. She was awarded in 2019 of Carbohydrate Research Award for Creativity in Carbohydrate Chemistry, in 2017 European prize of the RSEQ Chemical Biology Division to young group leaders who contributed to the field of Chemical Biology, and in 2016, the IEIIS Nowotny Award. https://orcid.org/0000-0002-5394-6532 Abstract: The evaluation of the structure of biomolecules built up of carbohydrates is a very challenging task due to the inherent complexity of sugar chemistry, which also impairs any computerized/automated approach. Nevertheless, this is a fundamental mission devoted to understanding interaction events at atomic level, including host-guest cross-talk. The combined use of complementary, biophysical approaches, including NMR spectroscopy, computational and biophysical techniques, native MS, together with immunological experiments is essential to unravel structure, properties, functions of glycans and understanding the mechanisms at the basis of recognition of the sugar code. In this talk, I will give a special focus to the description of bacterial glycocode, either as beneficial mediator of host homeostasis and immune system development or when harmful to the host. I will describe the chemical glyco-features located on bacterial cell surface able to tune eukaryotic immune responses. References: Adv. Sci, 2025;JACS Au, 2025;Carbohydr Polym. 2025 Jan 15;348(Pt A):122833;Nat Commun. 2024;15(1):8411. doi: 10.1038/s41467-024-52683-x;ACS Cent Sci. 2024; 10(2):447-459.;JACS Au. 2024; 4(2):697-712;JACS Au. 2024; 4(7):2617-2629;iScience. 2024; 27(2):108792.;Angew Chem Int Ed Engl. 2023;62(43):e202307851;JACS Au. 2023;3(3):929-942.;ACS Cent Sci. 2022; 8(10):1383-1392.;Int J Mol Sci. 2022; 23(15):8273;Angew Chem Int Ed Engl. 2022; 61(14):e202200818;Carbohydr Polym. 2022; 277:118839.;RSC Chem Biol. 2021; 2(6):1618-1630.;J Colloid Interface Sci. 2021; 594:891-901.;Curr Opin Struct Biol. 2021; 68:74-83.2021;ACS Cent Sci. 2020; 6(9):1602-1616.;Nat Commun. 2020;11(1):4142.;Nat Rev Microbiol. 2018; 16(5):304-315.;Nat Commun. 2017; 8(1):115.;Nat Commun. 2014; 5:5106;Proc Natl Acad Sci U S A. 2014;111(3):E404-13.;Proc Natl Acad Sci U S A. 2013;110(46):E4345-54.;J Am Chem Soc. 2011;133(51):20676-9.
Pr Philippe Poizot Université de Nantes
Philippe Poizot is Full Professor of Chemistry in Nantes Université, Institut des Matériaux Jean Rouxel (IMN). Expert in electrochemical systems and materials, he has been conducting research in this field for 25 years. After defending a DEA in Analytical Chemistry at the Paris VI University in 1998, he obtained a PhD in Materials Science at the University of Picardie Jules Verne (LRCS) in 2001 under the supervision of Prof. J.-M. Tarascon, where he demonstrated the ability of certain metal oxides to store lithium via ‘conversion reactions’. He then did a post-doctoral fellow at the University of Missouri-Rolla (USA) with Prof. J.A. Switzer, working on the electrodeposition of nanostructured materials and enantioselective catalysts. He became an assistant professor of chemistry at the Université de Picardie Jules Verne in 2002, and in 2007, he proposed the concept of ‘sustainable’ batteries by developing electrodes based on organic redox compounds potentially derived from biomass. He is the author of more than 110 scientific articles and co-inventor of 15 patents, he has been awarded the Bronze Medal of the Société d'Encouragement et de Progrès and is an honorary member of the Institut Universitaire de France (IUF). Since 2022, he has been co-director of the IMNBlue Lab, a partnership between IMN and BlueSolutions, dedicated to the development of all-solid lithium batteries.
Pr Véronique Jubera Université de Bordeaux https://orcid.org/0000-0002-2832-3958 Modulation of Re3NbO7 (RE= rare earth) composition: toward the elaboration of new transparent ceramic as infrared LASER sources
Véronique Jubera is professor at the University of Bordeaux and co-head of Physical Chemistry, Physics and Chemistry specialty of the Master of Chemistry - Light Graduate school program. She published 110 articles in international journals and she is actually the head of the Chemistry and Photonic group at the Bordeaux Institute of Chemistry of Condensed Matter (ICMCB). Her research activities are focused on the synthesis and the structure/properties relationship of inorganic materials. She develops research topics on new compounds such as borate-type single crystals or niobate-type transparent ceramics for laser applications. She is particularly interested in the impact of shaping on luminescent properties, from nanoscale to macroscopic scale. She also studies the modulation of material’s emission, exposed to external stimuli (temperature, pressure, redox effect, kinetics, etc.).
Keywords: Rare-earth niobate, Phase transition, Sintering, Photoluminescence, Transparent ceramics Abstract: The elaboration of new highly energetic compact optical LASER based on a SWAP approach (Size, Weight and Power reduction) requires to investigate new materials and shaping processes. Nowadays, the mid-infrared optical window is targeted in photonics for many application sectors like medical or defense. However, only few materials are available. The recent development of transparent ceramics gave rise to the production of gain materials with LASER emissions generation. To obtain massive transparent crystalline materials requires the fully densification and a cubic symmetry is preferred to avoid anisotropy.
Figure 1 Phase transition of RE3+xNb1-xO7-x1+x observed with Nb/Re modulation; RE3NbO7 ceramic.
A modulation of the RE/Nb ratio has been investigated in order to stabilize the RE3NbO7 (RE= Y, Gd, Eu, Ho) compound in a cubic symmetry [1-3]. Indeed, thanks to its disordered crystalline structure (lacunar fluorite) and its large solid solution domain, these niobate phases present the interest of widening the range of accessible wavelengths. In order to compare the cooling effect on the crystallization and the resulting structures, two different synthesis routes have been performed: an aerodynamic levitation process and a co-precipitation synthesis route. Luminescence and Raman spectroscopies of RE3+ doped compounds are detailed to complete the X-Ray diffraction patterns [4]. Given the high temperature stability of the compounds, the first attempts of sintering are presented in order to obtain transparent ceramics [5].
References: [1] Abe, Ryu, Masanobu Higashi, Zhigang Zou, Kazuhiro Sayama, Yoshimoto Abe, Hironori Arakawa. J Phys Chem B. 2004, 108 no 3, 811; [2] J.G., Allpress, H.J. Rossell. J Solid State Chem. 1979, 27 no 1, 105 ;[3] S. A, Kovyazina, L. A. Perelyaeva, I. A. Leonidov, Yu. A. Bakhteeva. J Solid State Chem, 2003, 44 no 6, 975 ;[4] R. Valois, L. Cornet, V. Rodriguez, O. Toulemonde, A. Fargues, E. Véron, A. Demourgues1, R. Boulesteix, A. Maître, J-M Heintz, M. Allix, M. J. Pitcher and V. Jubera, J Sol State Chem, 2025 under review ;[5] L. Cornet, S. Guene-Girard, J-M Heintz, R. Boulesteix, A. Maître, V. Jubera, Opt. Mater. 2023, 144,114319
Dr Nicolas Gallois Analytical Chemistry for the evaluation of pharmaceutical primary packaging. GDPU – Center Of Excellence Primary Container Development - SANOFI Senior Analytical Chemistry Scientist |
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