Seminar of Dr. Ali Mohraz next Tuesday 17th of November at 3pm

“Colloids at Fluid Interfaces: Opportunities for Advanced Materials Synthesis”
Ali Mohraz, Associate Professor of Chemical Engineering and Materials Science, University of California, Irvine

Particle seAli Mohrazquestration at the interface of immiscible fluids has been known for more than a century and exploited in the formulation of solid-stabilized (Pickering) emulsions for drug delivery, oil recovery, food, and personal care products, to name a few.  More recently, new classes of multi-phase mixtures have emerged that exploit interfacial colloid jamming, bridging, ordering, and aggregation for the self-assembly of complex higher-order structures from colloidal building blocks, such as bicontinuous interfacially jammed emulsion gels (bijels), or bridged emulsion gels. The multiphase nature of these mixtures makes them excellent templates for the synthesis of composite materials with tunable morphology at the nano- to micrometer scales, and our group has recently demonstrated various examples of functional materials that can be derived from them.  However, to expand these capabilities into a robust materials synthesis platform, the factors that mediate the mechanical stability and processability of these colloidal mixtures must be better understood.  In this talk, I will review the fundamentals and recent developments in colloidal self-assembly at fluid interfaces, present a novel materials synthesis route that we have pioneered based on these concepts, and discuss the applications of our technology in electrochemical energy conversion and storage, sensing, catalysis, and tissue engineering.  Finally, I will discuss our ongoing efforts to better understand the link between the microstructure, rheology, and processability of this new class of soft materials.

Ali Mohraz received his BSc, ME, and PhD in Chemical Engineering from Azad University, The City College of New York, and The University of Michigan, respectively, and his postdoctoral training at the Frederick Seitz Materials Research Laboratory at The University of Illinois in Urbana-Champaign.  He is currently Associate Professor of Chemical Engineering and Materials Science at the University of California, Irvine.  Dr. Mohraz’s primary research interests are in colloid science and complex fluids engineering, including colloidal assembly at fluid interfaces and microstructural evolution of complex fluids under transient large-strain deformations.

Additional information: Anna Laromaine

NN Group offers three projects under the framework of Marie Sklodowska- Curie Individual Fellowships

Marie Sklodowska- Curie Individual Fellowship (Call MSCA IF 2015) is open offering multiple opportunities to experienced researchers to return and reintegrate in Europe. 

There are 8 scientific areas established for MSCA. Our group offers 3 interdisciplinar projects under this framework (see attachments)

 1.Field of PHYSICS, Optoelectronics in room-temperature multiferroic iron oxide.

2. Field of CHEMISTRY, Engineering novel magnetic nano-biomaterials to address tissue repair guided by angiogenesis.

 3.Field of LIFE SCIENCE, Assessing nanoparticles in 3D biological environments, from cell culture to C. elegans.

If you are interested, please contact us and we will assist you.





Success in the HINT -BCN Workshop

Dr. Fernando Novio (ICN2) and Dr. Anna Laromaine (ICMAB) organized last 8-9th of June the HINT-BCN Workshop with success. Invited speakers and poster contributions were of great quality! From here, we would like to thank the group members for their help during the workshop!

Large Participation of the N&N group members at the Fourth International Conference on Multifunctional, Hybrid and Nanomaterials

fourth multifunctional

Fourth International Conference on Multifunctional, Hybrid and Nanomaterials (Hybrid Materials 2015) in Sitges (near Barcelona), Spain | 9 – 13 March 2015

To know more about the group activities: 

  • Tuesday 10 Symposium B1, 15:50‐16:10 [OB1.05.06]  Versatility of supercritica fluids as reaction media for hybrid SPIONs‐silica‐polymer biomaterials, N. Murillo‐Cremaes, J. Saurina, P. Subra‐Paternault, C. Domingo* (presenter) , A. Roig
  • Tuesday 10 Symposium B1, 16:10‐16:30 [OB1.05.07] Bacterial cellulose films: Origami and scaffoldsM. Zeng, A. Roig, A. Laromaine* (presenter)
  • Wenesday 11 Symposium A 12:20‐12:40 [OA.07.04] Encapsulation of a growth factor in magnetic polymeric nanocapsules,  E. Carenza, O. Jordan, P. Martínez‐San Segundo, R. Jirik4, Z. Starcuk jr., G. Borchard, A. Rosell, A. Roig* (presenter)
  • Wenesday 11 Symposium C  13:00‐13:20 [OC.07.06] Thin epitaxial quartz films with tunable textures on silicon, A. Carretero‐Genevrier, M. Gich* (presenter), L. Picas, J. Gazquez, G.L. Drisko, C. Boissiere, D. Grosso, J. Rodriguez‐Carvajal, C. Sanchez
  • Thursday 12 Symposium A 10:00‐10:20 [OA.08.03] C. elegans: a model to evaluate nanoparticles?, L. Gonzalez‐Moragas* (presenter), E. Carenza, S. Yu, A. Roig, A. Laromaine
  • A poster presented by M. Gich on Bismuth Carbon nanocomposites for heavy metal sensor detection




Group participation at Nanax5!

nnParticipation of The Nanoparticles and Nanocomposites Group at Nanax5 in Málaga with 3 posters and a flash presentation:

Poster: Synthesis and magnetoelectric properties of e-Fe2O3 nanoparticles. M. Gich, A. Roig.

Poster: Intrinsic magneto-optical response of 3D photonic-crystals infiltrated with magnetic nanocrystals. O. Pascu, J. M. Caicedo, A. García-Martín, V. Canalejas,  M. López,  C. López, A. Blanco, J. Fontcuberta, G. Herranz**, Anna Roig*

Flash and poster presentation: Peptides on gold as protease sensors and for supramolecular stamping. A. Laromaine, L. Koh, R. V. Ulijn, O. Akbulut, F. Stellacci, M. M. Stevens

Group Funding

fundingGroup Funding as Career Integration Grants of the Marie-Curie Actions.

  • COSYMETCOX – Confined synthesis of metastable complex oxides – lead by Martí Gich.
  • 3DinvitroNPC – Interactions in Three-dimensional (3D) in vitro environments of Nanoparticles and Cells – lead by Anna Laromaine.

El CSIC logra efectos ópticos “extraordinarios” en ópalos magnéticos artificiales

magnetoUna investigación del Consejo Superior de Investigaciones Científicas (CSIC) ha diseñado materiales con propiedades ópticas no convencionales gracias al desarrollo de cristales artificiales a base de ópalos magnéticos autoensamblados. Dichas estructuras “aumentan extraordinariamente” la actividad magneto‐óptica para ciertas frecuencias de la luz. El cristal opalino consta de una estructura perfectamente ordenada de esferas huecas de óxido de aluminio (Al2O3) y diámetro aproximado de 300 nanómetros.
El estudio, dirigido por los investigadores del CSIC en el Instituto de Ciencias de Materiales de Bacerlona, Gervasi Herranz y Anna Roig, demuestra que al atravesar estas estructuras se induce en la luz una rotación muy intensa de su plano de polarización para longitudes de onda cercanas al parámetro de red de los ópalos. Este fenómeno podría ser de utilidad para una nueva generación de dispositivos en comunicaciones ópticas.

Magnetophotonic Response of Three-Dimensional Opals. José Manuel Caicedo, Oana Pascu, Martín López-García, Víctor Canalejas, Álvaro Blanco, Cefe López, Josep Fontcuberta, Anna Roig*, and Gervasi Herranz*( Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, E08193, Bellaterra, Spain, Instituto de Ciencia de Materiales de Madrid (ICMM-CSIC), Calle Sor Juana Inés de la Cruz 3, Madrid 28049, Spain).ACS Nano, 2011, 5 (4), pp 2957–2963.DOI: 10.1021/nn1035872