THE LATEST NEWS ABOUT US, GENERAL AND SPECIFIC OF EACH GROUP
2008 2009 2010 2011 2012 2013 JAN. FEB. MAR. APR. MAY. JUN. JUL. AUG. SEP. OCT. NOV. DEC. All 2010
- Jan 27, 2010 Invited conference at Solar’10
- Jan 26, 2010 Dipolar Driven Spontaneous Self Assembly of Superparamagnetic Co Nanoparticles into Micrometric Rice-Grain like Structures
- Jan 25, 2010 Professor at the Summer School on Nanobiosensors
- Jan 24, 2010 Cover paper at Física y Sociedad
- Jan 21, 2010 Enhanced Gold Nanoparticle Based ELISA for a Breast Cancer Biomarker
- Jan 21, 2010 Reference at Highlights in Chemical Biology
- Jan 18, 2010 Selected article of Virtual Journal of Nanoscale Science & Technology
- Jan 17, 2010 Participation on a Radio show
- Jan 15, 2010 Microcantilever-based platforms as biosensing tools
- Jan 15, 2010 Organizing committee at ElecMol'10
- Jan 12, 2010 Current-driven spin torque induced by the Rashba effect in a ferromagnetic metal layer
- Jan 11, 2010 Invited Speaker at Drug Discovery Workshop 2010
- Jan 10, 2010 Invited Chairman at ISIF 2010
- Jan 10, 2010 Defect Structure, Charge Transport Mechanisms, and Strain Effects in Sr4Fe6O12+δ Epitaxial Thin Films
- Jan 02, 2010 Scientific Committee and Lecturer on II International Workshop on Analytical Miniaturization
Jan 26, 2010
Dipolar Driven Spontaneous Self Assembly of Superparamagnetic Co Nanoparticles into Micrometric Rice-Grain like Structures
Victor Puntes and Miriam Varón, leader and member of the Inorganic Nanoparticles group at CIN2 (ICN-CSIC), together with other researchers from and UAB published 'Dipolar Driven Spontaneous Self Assembly of Superparamagnetic Co Nanoparticles into Micrometric Rice-Grain like Structures' on Langmuir.
Superparamagnetic single crystal single domain Co nanoparticles of 6 nm in diameter evaporated onto highly pyrolytic oriented graphite spontaneously self-assemble into super structures with an elongated shape. These structures have been studied by optical and scanning electron microscopies, atomic and magnetic force microscopy, electron dispersive X-ray analysis, and SQUID magnetometry. We propose that the weak dipolar interactions between superparamagnetic dipoles of the cobalt nanoparticles are responsible for the formation of these structures when the dipolar magnetic interactions are strong enough to influence the general process of self-assembly dominated by van der Waals forces between neighboring nanoparticles and between nanoparticles and the substrate during evaporation of the solvent.
