par De Silva, Johann 
;Poulos, Andreas A.S.;Pansu, Brigitte;Davidson, Patrick;Kasmi, B.;Petermann, Denis;Impéror, Marianne;Asnacios, Sophie;Meneau, Florian
Référence The European physical journal. E. Soft matter, 34, 1
Publication Publié, 2011-01
;Poulos, Andreas A.S.;Pansu, Brigitte;Davidson, Patrick;Kasmi, B.;Petermann, Denis;Impéror, Marianne;Asnacios, Sophie;Meneau, FlorianRéférence The European physical journal. E. Soft matter, 34, 1
Publication Publié, 2011-01
Article révisé par les pairs
| Résumé : | We study the influence of nanoparticle doping on the lyotropic liquid crystalline phase of the industrial surfactant Brij30 ( C 12E 4 and water, doped with spherical polyoxometalate nanoparticles smaller than the characteristic dimensions of the host lamellar phase. We present viscometry and in situ rheology coupled with small-angle X-ray scattering data that show that, with increasing doping concentration, the nanoparticles act to decrease the shear viscosity of the lamellar phase, and that a shear-induced transition to a multilamellar vesicle "onion" phase is pushed to higher shear rates, and in some cases completely suppressed. X-ray data reveal that the nanoparticles remain encapsulated within the membranes of the vesicles, thus indicating a viable method for the fabrication of nanoparticle incorporating organic vesicles. © 2011 EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg. |
