Sergio Marras

Chief Technician


via Morego, 30
+39 010 71781 484





Selected Publications

Nanoporous Silicon Nanoparticles for drug delivery applications

M. Perrone Donnorso, E. Miele, F. De Angelis, R. La Rocca, T. Limongi, F. Cella Zanacchi, S.Marras, R. Bresciaand E. Di Fabrizio

Microelectronic Engineering (submitted)


Tailored Ag nanoparticles/nanoporous superhydrophobic surfaces hybrid devices for the detection of single molecule

F. Gentile, M.L. Coluccio, A. Accardo, G. Marinaro, E. Rondanina, S. Santoriello, S. Marras, G. Das, L. Tirinato, G. Perozziello, F. De Angelis, C. Dorigoni, P. Candeloro, E. Di Fabrizio

Microelectronic Engineering, 2012


Extremely large extinction efficiency and field enhancement in terahertz resonant dipole nanoantennas

L. Razzari, A. Toma, M. Shalaby, M. Clerici, R. Proietti Zaccaria, C. Liberale, S. Marras, Ibraheem A. I. Al-Naib, G. Das, F. De Angelis, M. Peccianti, A. Falqui, T. Ozaki, R. Morandotti, and E. Di Fabrizio

Optics Express 2011, Vol. 19, Issue 27, pp. 26088-26094


Hierarchical self-assembly of suspended branched colloidal nanocrystals into superlattice structures

Miszta K., de Graaf J., Bertoni G., Dorfs D., Brescia R., Marras S., Ceseracciu L., Cingolani R., van Roij R., Dijkstra M. and Manna L.

Nature Materials  2011, vol. 10, pp. 872-876


Optical and electrical properties of colloidal (spherical Au)-(spinel ferrite nanorod) heterostructures

George C., Genovese A., Fen Q., Korobchevskaya K., Comin A., Falqui A., Marras S., Roig A., Zhang Y., Krahne R. and Manna L.

Nanoscale2011, vol. 3, pp. 4647-4654, 2040-3364 (Print) 2040-3372 (Electronic) 2040-3364 (Linking) 


Ultrafast Exciton Dynamics in Colloidal CdSe/CdS Octapod Shaped Nanocrystals

Scotognella F., Miszta K., Dorfs D., Zavelani R.M., Brescia R., Marras S., Manna L., Lanzani G. and Tassone F.

Journal of Physical Chemistry C  2011, vol. 115, (no. 18), pp. 9005-9011


Electron Microscopy Studies of Electron-Beam Sensitive PbTe-Based Nanostructures

Falqui A., Bertoni G., Genovese A., Marras S., Malerba M., Franchini I. R. and Manna L.

Microscopy Research and Technique2010, vol. 73, (no. 10), pp. 944-951


Epitaxial CdSe-Au Nanocrystal Heterostructures by Thermal Annealing

Figuerola A., van Huis M., Zanella M., Genovese A., Marras S., Falqui A., Zandbergen H. W., Cingolani R. and Manna L.

NANO Letters2010, vol. 10, (no. 8), pp. 3028-3036


Preparation of Mn, Ni, Co Ferrite Highly Porous Silica Nanocomposite Aerogels by an Urea-Assisted Sol-Gel Procedure

D. Loche, M.F. Casula, A. Falqui, S. Marras and A. Corrias

Journal of Nanoscience and Nanotechnology 2010, Volume 10, Number 2, pp. 1008-1016(9)


Characterization of FeOOH Nanoparticles and Amorphous Silica Matrix in a FeOOH-SiO2 Nanocomposite

M. F. Casula, S. Marras, G. Navarra, A. Scano, G. Marongiu, G. Ennas

Journal of Nanomaterials 2008, Article ID 361816. doi:10.1155/2008/361816


The influence of composition and porosity on the magnetic properties of FeCo-SiO2nanocomposite aerogels

A. Casu, M.F. Casula, A. Corrias, A. Falqui, D. Loche, S. Marras, C. Sangregorio

Physical Chemistry Chemical Physics 2008, 10, 1043


 X-ray Absorption Investigation of the Formation of Cobalt Ferrite Nanoparticles in an Aerogel Silica Matrix

D. Carta, G. Mountjoy, G. Navarra, M. F. Casula, D. Loche, S. Marras, and A. Corrias

The Journal of Physical Chemistry C  (2007) 111, 6308-6317


Role of urea in the preparation of highly porousnanocompositeaerogels

M.F. Casula, D. Loche, S. Marras, G. Paschina, A. Corrias

Langmuir 2007, 23, 3509


Magnetic and structural investigation of highly porous CoFe2O4-SiO2 nanocomposite aerogels

A. Casu, M.F. Casula, A. Corrias, A. Falqui, D. Loche, S. Marras

Journal of Physical Chemistry C  2007, 111,  916-922


An X-ray absorption spectroscopy investigation on the formation of FeCo alloy nanoparticles in Al2O3 xerogel and aerogel matrices

A. Corrias, G. Navarra, M.F. Casula, S. Marras, G. Mountjoy

Journal of Physical Chemistry B 2005, 109, 13964-13970


Influence of metal content on size, dispersion and magnetic properties of iron-cobalt alloy nanoparticles embedded in silica matrix

G. Ennas, A. Falqui, S. Marras, C. Sangregorio, G. Marongiu

Chemistry of Materials 2004, 16, 5659 – 5663


A neutron powder diffraction study of FeCo-SiO2 nanocomposites

M.F. Casula, A. Corrias, G. Ennas, S. Marras, G. Paschina

Nano-Architectured and Nanoparticulate Materials: Fabrication, Control and Properties2004,

editor Y. Champion and H.-J. Fecht, Wiley-VCH, 120-126 (ISBN: 3-527-31008-8)


Magnetic properties of nanocrystalline CoFe2O4 dispersed in amorphous silica

F. Congiu, G. Concas, G. Ennas, A. Falqui, D. Fiorani, G. Marongiu, S. Marras, G. Spano, A.M. Testa

Journal of Magnetism and Magnetic Materials 2004, 272-276, 1561-1562


Mechanochemical route for the synthesis of cobalt ferrite-silica and iron-cobalt alloy-silica Nanocomposites

G. Ennas, G. Marongiu, S. Marras, G. Piccaluga

Journal of Nanoparticle Research 2004, 6, 99-105


An X-ray absorption  spectroscopy study on FeCo-SiO2 nanocomposites prepared by the sol-gel method

A. Corrias, M.F. Casula, G. Ennas, S. Marras, G. Navarra, G. Mountjoy

Journal of Physical Chemistry B2003, 107,  3030-3039


Non-stoichiometric CoFe2O4 nanoparticles supported on an amourphous silica matrix

M.F. Casula, D. Gatteschi, G. Ennas, A. Falqui, S. Marras, C. Sangregorio, G. Piccaluga

Journal of Sol-Gel Science and Technology 2003, 26, 463-466



US patent application n. 13/196123 (02-08-2011):

L. Manna, D. Dorfs, K. Miszta, S. Deka, A. Genovese, G. Bertoni, R. Brescia, S. Marras, Y. Zhang, R. Krahne, R. Cingolani

Octapod shaped nanocrystals and use thereof


International patent application n. PCT/EP2011/063304 (02-08-2011):

K. Miszta, D. Dorfs, G. Bertoni, L. Manna, R. Brescia, S. Marras, R. Cingolani, R. Krahne, Y. Zhang, F. Qiao,

Ordered Superstructures of Octapod Shaped Nanocrystals and Use thereof