Universidade Nova de Lisboa - CENIMAT/I3N - FCT


CENIMAT - Centro de Investigação em Materiais
Faculdade de Ciências e Tecnologia
Universidade Nova de Lisboa
Campus da Caparica
2829 - 516 Caparica
Tel: +351 212948358/00
Fax. + 351 212948550

NMR Equipment
  • Bruker Avance 300
Unit Homepage


Main research Topics

General Domains of Interest

Spectroscopic characterization of molecular dynamic and structure in solids and complex fluids.
Micro MRI and Localized Spectroscopy of materials and bio-systems.

Specific Topics of Research

Selected Publications (2008-2013)
  1. “Critical Fluctuations and random-anisotropy glass transition in nematic elastomers”, Feio G, Figueirinhas JL, Tajbakshsh AR, Terentjev EM, Phys. Rev. B, 2008, 78(2), 020201
  2. “Biaxial nematic order and biaxial order and phase behavior studies in an organosiloxane tetrapode using complementary deuterium NMR experiments”, Cruz C, Figueirinhas JL, Filip D, Feio G, Ribeiro AC, Frère Y, Meyer T, Mehl GH, Phys. Rev. E, 2008, 78(5), 051702
  3. “Deuterium NMR Investigation of the Influence of Molecular Structure on the Biaxial Ordering of Organosiloxane Tetrapodes Nematic Phase”, M. Cardoso M, Figueirinhas JL, Cruz C, Van-Quynh A, Ribeiro AC, Feio G, Apreutesei D, Mehl GH, Mol. Cryst. Liq. Cryst., 2008, 495, 348–359
  4. “2H NMR Study of Deformed Natural Rubber Networks”, Alexandre J, Marvão MR, Feio G, Advanced Materials Forum IV, 2008, 687-691, 587-588
  5. “The role of defects and boundary and volume inhomogeneities in the field-induced director reorientation in nematic liquid crystals confined between parallel plates”, Martins AF, Véron A, Thin Solid Films, 2008, 517, 1387-1393
  6. “Dynamics of confined nematic liquid crystals: computer simulation of field-induced bands formation in the presence of defects anchored on solid boundary surfaces”, Véron A, Martins AF, Thin Solid Films, 2008, 517, 1380-1386
  7. “Director dynamics within a boundary layer in contact with a shearing solid surface with non-rigid anchoring”, Véron A, Martins AF, Mol. Cryst. Liq. Cryst., 2008, 495, 294-311
  8. “A novel approach to the normal force in shear of nematic liquid crystals in the cone-and-plate rheometer”, Martins AF, Véron A, Mol. Cryst. Liq. Cryst., 2008, 495, 312-333
  9. “The influence of the preparation methods on the inclusion of model drugs in a beta-cyclodextrin cavity“, Salústio PJ, Feio G, Figueirinhas JL, Pinto JF, Cabral Marques HM, Eur. J. Pharm. Bio-pharm., 2009, 71, 377-386
  10. “Deuterium NMR study of mobility and fluctuations in nematic and isotropic elastomers”, Feio G, Figueirinhas JL, Tajbakshsh AR, Terentjev EM, J. Chem. Phys., 2009, 131(7), 074903
  11. “Collective modes and biaxial ordering observed by deuterium NMR in the nematic phases of an organosiloxane tetrapode”, Figueirinhas JL, Cruz C, Feio G, MehlGH, Mol. Cryst. Liq. Cryst , 2009, 510, 158-174
  12. “Transition from a collective to a progressive mode of director reorientation in a side-chain nematic polymer”, Martins AF, Véron A, Boiko N, Shibaev V, 10th European Conference on Liquid Crystals (ECLC 2009), Colmar, France, April 19-24, 2009
  13. “Testing the parallelism of the plates of a display-like nematic liquid crystal cell by NMR”, Luckhurst GR, Martins AF, Sugimura A, Véron A, 10th European Conference on Liquid Crystals (ECLC 2009), Colmar, France, April 19-24, 2009
  14. “Self-winding of helices in plant tendrils and cellulose liquid crystal fibers”, Godinho MH, Canejo JP, Feio G, Terentjev EM, Soft Matter, 2010, 6 (23), 5965-5970
  15. “Nuclear magnetic resonance spectroscopic investigations of phase biaxiality in the nematic glass of a shape-persistent V-shaped mesogen”, Figueirinhas JL, Feio G, Cruz C, Lehmann M, Khon C, Dong RY, J. Chem. Phys., 2010, 133(7), 174509
  16. “Biaxial nematic mesophases from shape-persistent mesogens with a fluorene bending unit”, Lehmann M, Khon C, Figueirinhas JL, Feio G, Cruz C, Dong RY, Chemistry-A European Journal, 2010, 16(28), 8275-8279
  17. “Deuterium NMR study of orientational order in cellulosic network microfibers”, Kundu S, Feio G, Pinto LFV, Almeida PL, Figueirinhas JL, Godinho MH, Macromolecules, 2010, 43(13), 5749-5755
  18. “Theory and numerical simulation of field-induced director dynamics in confined nematics investigated by nuclear magnetic resonance”, Martins AF, Veron A, Liquid Crystals, 2010, 37 (6-7), 747-771
  19. “Release profile of ibuprofen in beta-cyclo-dextrin complexes from two different solid dosages forms”, Salústio PJ, Feio G, Figueirinhas JL, Cabral-Marques HM, Costa PC, Pinto JF, Powder Technology, 2012, 221, 245-251
  20. "Surface anchoring energy of an octyl-cyanobiphenyl liquid crystal (8CB) deduced from the shear stress response", Véron, A, Martins AF, Liquid Crystals, 2012, 39:9, 1159-1165
  21. "Properties of the static NMR response of a confined thin nematic film of 5CB-d2 under crossed electric and magnetic fields: Theory and experiments", Véron A, Dugmura A, Luckhurst GR, Martins AF, Physical Review E, 2012, 86, 051708-1/20
  22. "Origin of the echo phenomenon upon flow reversal in low molecular weight nematic liquid crystals", Martins AF, Véron A, Rheological Acta, 2012, 51, 891-908
  23. "Relaxivities of Magnetoliposomes: the effect of cholesterol", Carvalho A, Gonçalves MC, Martins MB, Meixedo D, Feio G, Magn Reson Imaging, 2013, 31(4), 610-612
  24. "Synthesis and Characterization of Magnetoliposomes for MRI Contrast Enhancement", Faria R, Cruz MM, Gonçalves MC, Carvalho A, Feio G, Martins MBF, Int J Farm, 2013, 446(1-2), 183-190
  25. "Molecular mobility, composition and structure analysis in glycerol plasticized chitosan", Fundo JF, Fernandes R, Almeida PM, Carvalho A, Feio G, Silva CLM, Quintas MAC, Food Chemistry (accepted)
  26. "Europium-polyoxometalates Encapsulated into Silica Nanoparticles: Characterization and Photoluminescent studies", Neves CS, Granadeiro CM, Cunha-Silva L, Ananias D, Gago S, Feio G, Carvalho AP, Eaton P, Balula SS, Pereira E, Eur J Inorg Chem (accepted)