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Unité Matériaux et Transformations
CNRS UMR 8207 - Université de Lille

PACCOU Laurent
Laurent PACCOU
Ingénieur d'étude CNRS
Bâtiment P5 - 241
Unité Matériaux et Transformations
Cité scientifique, Bât. P5
Université de Lille
59655 Villeneuve d'Ascq
France
Tel: +33 (0)3 20 43 43 35/+33 (0)3 20 43 49 96
Fax: +33 (0)3 20 43 40 84
Courriel Envoyer un mel à  Laurent PACCOU: Envoyer un mel à Laurent PACCOU
Identifiant ORCID :

Activité

Analyse de l’organisation structurale et de la dynamique des matériaux moléculaires formateurs de verre dans leurs états amorphes et cristallins, des mécanismes de transformation de phases, et de stabilisation d’états amorphes de matériaux d’intérêt thérapeutique (petites molécules, protéines) par des excipients. Analyses par spectroscopie Raman, diffusion des neutrons, RX, calorimétrie

Enseignement

IUT A – département Mesures Physique : Vacataire, TP Logique Combinatoire (52h/an), Multiplexeur, Bascule RS, JK, D Cours (8h/an) et TD (22h/an) Technique du Vide, Calcul d’installations, les unités légales, le libre parcours moyen, section efficace de collision, les différents régimes d’écoulement, Nombre de Reynolds et Nombre de Knusden. HEI – Interrogateur Orale en Classe Préparatoire 1er Année en Physique 56h/an

Responsabilité d'instruments

micro Spectromètre Raman Renishaw InVia, adapté aux études à moyennes fréquences (150-1800 cm-1, Microcalorimètre MicroDSC7 evo (Setaram), Spectromètre Raman XY Dilor, adapté aux études Macro à Basses fréquences (5-500 cm-1)

Derniers dépôts dans dans LillOA (Lille Open Archive)

Publications

  1. Y. Guinet, L. Paccou, A. Hedoux, Low-Frequency Raman Spectroscopy: An Exceptional Tool for Exploring Metastability Driven States Induced by Dehydration, Pharmaceutics 15;7, 1955 (2023), [doi: 10.3390/pharmaceutics15071955, LillOA]
  2. Y. Guinet, L. Paccou, A. Hedoux, Co-Amorphous Versus Deep Eutectic Solvents Formulations for Transdermal Administration, Pharmaceutics 15;10, 1710 (2023), [doi: 10.3390/pharmaceutics15061710, LillOA]
  3. T. Rongthong, A. Qnouch, M. Maue Gehrke, L. Paccou, P. Oliveira, F. Danede, J. VERIN, C. Vincent, J.-F. willart, F. Siepmann, J. Siepmann, Silicone matrices for controlled dexamethasone release: toward a better understanding of the underlying mass transport mechanisms., Regenerative Biomaterials 10, rbad008 (2023), [doi: 10.1093/rb/rbad008, LillOA]
  4. Y. Guinet, L. Paccou, A. Hedoux, Analysis of Co-Crystallization Mechanism of Theophylline and Citric Acid from Raman Investigations in Pseudo Polymorphic Forms Obtained by Different Synthesis Methods, Molecules 28;4, 1605 (2023), [doi: 10.3390/molecules28041605, LillOA]
  5. Y. Guinet, L. Paccou, A. Hedoux, Mechanism for Stabilizing an Amorphous Drug Using Amino Acids within Co-Amorphous Blends, Pharmaceutics 15;2, 337 (2023), [doi: 10.3390/pharmaceutics15020337, LillOA]
  6. B. Moutamenni, N. Tabary, A. Mussi, J. Dhainaut, C. Ciotonea, A. Fadel, L. Paccou, Y. Guinet, A. Hedoux, Milling-Assisted Loading of Drugs into Mesoporous Silica Carriers: A Green and Simple Method for Obtaining Tunable Customized Drug Delivery, Pharmaceutics 15;2, 390 (2023), [doi: 10.3390/pharmaceutics15020390, LillOA]
  7. T. Rongthong, A. Qnouch, M.M. Gehrke, F. Danede, J.-F. willart, P.F.M. De Oliveira, L. Paccou, G. Tourrel, P. Stahl, J. VERIN, P. Toulemonde, C. Vincent, F. Siepmann, J. Siepmann, Long term behavior of dexamethasone-loaded cochlear implants: In vitro & in vivo, International Journal of Pharmaceutics: X 4, 100141 (2022), [doi: 10.1016/j.ijpx.2022.100141, LillOA]
  8. Y. Guinet, L. Paccou, F. Danede, P. Derollez, A. Hedoux, Identification of incommensurability in L-leucine: can lattice instabilities be considered as general phenomena in hydrophobic amino acids?, Physical Chemistry Chemical Physics 24, 27023-27030 (2022), [doi: 10.1039/d2cp00989g, LillOA]
  9. J.-F. willart, S. Ouerghemmi, N. Descamps, P. Heijboer, L. Paccou, F. Danede, M. Descamps, The melting of glucose, International Journal of Pharmaceutics 626, 122185 (2022), [doi: 10.1016/j.ijpharm.2022.122185, LillOA]
  10. Y. Guinet, L. Paccou, F. Danede, A. Hedoux, Revisiting the phase transition sequence in L-methionine: Description of the disordering mechanism in an essential amino acid, Journal of Chemical Physics 156;3, 034501 (2022), [doi: 10.1063/5.0077743, LillOA]
  11. B. Moutamenni, N. Tabary, L. Paccou, Y. Guinet, A. Hedoux, MAL: High performance method for loading hydrophobic molecular materials into MCM-41 mesoporous silica – Analysis of confined L-tryptophan by Raman spectroscopy, Journal of Molecular Structure 1254, 132383 (2022), [doi: 10.1016/j.molstruc.2022.132383, LillOA]
  12. N. Schaeffer, D.O. Abranches, L.P. Silva, M.A. Martins, P.J. Carvalho, O. Russina, A. Triolo, L. Paccou, Y. Guinet, A. Hedoux, J.A. Coutinho, Non-Ideality in Thymol + Menthol Type V Deep Eutectic Solvents, ACS Sustainable Chemistry & Engineering 9;5, 2203-2211 (2021), [doi: 10.1021/acssuschemeng.0c07874, LillOA]
  13. Y. Guinet, L. Paccou, F. Danede, A. Hedoux, Confinement of molecular materials using a solid-state loading method: a route for exploring new physical states and their subsequent transformation highlighted by caffeine confined to SBA-15 pores, RSC Advances 11;55, 34564-34571 (2021), [doi: 10.1039/D1RA05757J, LillOA]
  14. B. Malfait, L. Paccou, N. T. Correia, Y. Guinet, A. Hedoux, Identification of an amorphous-amorphous two-step transformation in indomethacin embedded within mesoporous silica, Microporous and Mesoporous Materials 328, 111502 (2021), [doi: 10.1016/j.micromeso.2021.111502, LillOA]
  15. M. Guerain, Y. Guinet, N. T. Correia, L. Paccou, F. Danede, A. Hedoux, Polymorphism and stability of ibuprofen/nicotinamide cocrystal: The effect of the crystalline synthesis method, International Journal of Pharmaceutics 584, 119454 (2020), [doi: 10.1016/j.ijpharm.2020.119454, LillOA]
  16. Y. Guinet, L. Paccou, A. Hedoux, A detailed description of the devitrification mechanism of D-mannitol, Physical Chemistry Chemical Physics 22, 5011-5017 (2020), [doi: 10.1039/c9cp05287a, LillOA]
  17. Y. Guinet, L. Paccou, A. Hedoux, Analysis of xylitol – citric acid system forming deep eutectic solvent: Application for dissolving poorly water-soluble drugs. A combination of calorimetric and Raman investigations, Journal of Molecular Liquids 318, 114317 (2020), [doi: 10.1016/j.molliq.2020.114317, LillOA]
  18. M. Latreche, J.-F. willart, L. Paccou, Y. Guinet, F. Danede, A. Hedoux, Contribution of low-frequency Raman spectroscopy to determine the solubility curves of drugs in polymers: The case of paracetamol/PVP, European Journal of Pharmaceutics and Biopharmaceutics 154, 222-227 (2020), [doi: 10.1016/j.ejpb.2020.07.012, LillOA]
  19. A. Dupont, M. Guerain, F. Danede, L. Paccou, Y. Guinet, A. Hedoux, J.-F. willart, Kinetics and mechanism of polymorphic transformation of sorbitol under mechanical milling, International Journal of Pharmaceutics 590, 119902 (2020), [doi: 10.1016/j.ijpharm.2020.119902, LillOA]
  20. T. Starciuc, B. Malfait, F. Danede, L. Paccou, Y. Guinet, N. T. Correia, A. Hedoux, Trehalose or sucrose; which of the two should be used for stabilizing proteins in the solid state? A dilemma investigated by in-situ micro-Raman and dielectric relaxation spectroscopies during and after freeze-drying, Journal of Pharmaceutical Sciences 109;1, 496-504 (2019), [doi: 10.1016/j.xphs.2019.10.055, LillOA]
  21. M. Latreche, J.-F. willart, L. Paccou, Y. Guinet, A. Hedoux, Polymorphism versus devitrification mechanism: Low-wavenumber Raman investigations in sulindac, International Journal of Pharmaceutics 567, 118476 (2019), [doi: 10.1016/j.ijpharm.2019.118476, LillOA]

Liste complète (Le lien peut être lent)

Communications

  1. M. Guerain, P. Derollez, C. Dejoie, N. T. Correia, F. Danede, F. Affouard, L. Paccou, Y. Guinet, A. Hedoux, C. Dejoie, Analyse structurale de matériaux moléculaires thérapeutiques cocristallisés par diffraction des rayons X, Communication dans un congrès sans actes, Rayons X et Matière 2019, Nancy, France, Nov 2019 [LillOA]
  2. M. Gehrke, T. Rongthong, G. Tourrel, D. Gnansia, P. Oliveira, J.-F. willart, L. Paccou, Y. Guinet, A. Hedoux, C. Vincent, F. Siepmann, J. Siepmann, Homogeneity, drug release and swelling of dexamethasone loaded cochlear implants, Poster, 11th world meeting on Pharmaceutics, Biopharmaceutics and Pharmaceutical technology, Granada, Espagne, Mar 2018 [LillOA]
  3. B. Malfait, N. T. Correia, A. Mussi, L. Paccou, Y. Guinet, A. Hedoux, Solid-state loading of pharmaceutical materials within mesoporous silica matrices, Communication dans un congrès sans actes, 1st International Conference on Contemporary Pharmacy Challenges: 1st International Conference on Contemporary Pharmacy Challenges:, Wisla, Pologne, Sep 2018 [LillOA]
  4. T. Starciuc, L. Paccou, Y. Guinet, A. Hedoux, Mechanism of protein stabilization analyzed from in-situ Raman investigations during freeze-drying procedures, Conférence invitée, Freeze-drying of pharmaceuticals & biologicals, Garmisch-Partenkirchen, Allemagne, Sep 2018 [LillOA]
  5. T. Starciuc, A. Hedoux, Y. Guinet, L. Paccou, Mechanisms of protein denaturation and stabilization analyzed in-situ during the freeze-drying process by micro-Raman spectroscopy, Conférence invitée, 8th International Discussion Meeting on Relaxations in Complex Systems (8IDMRCS), Wisla, Pologne, Juil 2017 [LillOA]
  6. G. Bellavia, L. Paccou, Y. Guinet, A. Hedoux, The solvent dynamical transition is a necessary precursor to promote the protein unfolding, Communication dans un congrès sans actes, International Symposium On the Properties of Water, ISOPOW XIII, Lausanne, Suisse, Juin 2016 [LillOA]
  7. T. Starciuc, L. Paccou, Y. Guinet, A. Hedoux, Protein denaturation and stabilization during freeze-drying analyzed from in-situ micro Raman investigations, Conférence invitée, International Symposium On the Properties of Water, ISOPOW XIII, Lausanne, Suisse, Juin 2016 [LillOA]
  8. G. Bellavia, L. Paccou, Y. Guinet, A. Hedoux, Role of glycerol on trehalose to enhance biostability in relation with fast anharmonic and quasi-harmonic motions, Communication dans un congrès sans actes, ProtStab2014 : 10th International Conference on Protein Stabilisation, Stresa, Italie, Mai 2014 [LillOA]
  9. A. Hedoux, L. Paccou, Y. Guinet, Solid state transformations of APIs induced by various stresses analyzed in real time by Raman spectroscopy, Conférence invitée, AMPTEC, Lille, France, Juil 2014 [LillOA]
  10. A. Hedoux, L. Paccou, Y. Guinet, The contribution of the low-frequency Raman spectroscopy to the structural description of disordered molecular systems and their transformations: application to pharmaceuticals, Conférence invitée, SciX 2015, Providence (Rhode Island), Etats-Unis d'Amérique, Oct 2015 [LillOA]

Liste complète (Le lien peut être lent)

 
 
UMET - Unité Matériaux et Transformations
CNRS UMR 8207
Université de Lille
Bâtiment C6
59655 Villeneuve d'Ascq
France
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