http://www.cnr.it/ontology/cnr/individuo/prodotto/ID192559
Formation and magnetic manipulation of periodically aligned microchains in thin plastic membranes (Articolo in rivista)
- Type
- Label
- Formation and magnetic manipulation of periodically aligned microchains in thin plastic membranes (Articolo in rivista) (literal)
- Anno
- 2012-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1063/1.4759328 (literal)
- Alternative label
Daniela Lorenzo, Despina Fragouli, Giovanni Bertoni, Claudia Innocenti, George C Anyfantis, P Davide Cozzoli, Roberto Cingolani, Athanassia Athanassiou (2012)
Formation and magnetic manipulation of periodically aligned microchains in thin plastic membranes
in Journal of applied physics; AIP, American institute of physics, Melville, NY (Stati Uniti d'America)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Daniela Lorenzo, Despina Fragouli, Giovanni Bertoni, Claudia Innocenti, George C Anyfantis, P Davide Cozzoli, Roberto Cingolani, Athanassia Athanassiou (literal)
- Pagina inizio
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://jap.aip.org/resource/1/japiau/v112/i8/p083927_s1 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Center for Biomolecular Nanotechnologies UNILE, Istituto Italiano di Tecnologia, Via Barsanti, 73010 Arnesano (LE), Italy; Nanophysics, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genova, Italy; IMEM-CNR, Parco Area delle Scienze 37/A, 43124 Parma, Italy; INSTM Research Unit, Dipartimento di Chimica, Universita' di Firenze, via della Lastruccia 3, 50019 Sesto F.no, Firenze, Italy; National Nanotechnology Laboratory (NNL), CNR Istituto Nanoscienze, C/o Distretto Tecnologico, via per Arnesano km 5, 73100 Lecce, Italy; Dipartimento di Matematica e Fisica E. de Giorgi, Università Del Salento, via per Arnesano, 73100 Lecce, Italy; Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genova, Italy (literal)
- Titolo
- Formation and magnetic manipulation of periodically aligned microchains in thin plastic membranes (literal)
- Abstract
- We demonstrate the fabrication of polymeric membranes that incorporate a few layers of periodically aligned magnetic microchains formed upon the application of variable magnetic fields. A homogeneous solution containing an elastomeric polymer and a small amount of colloidal magnetic nanoparticles is spin coated on glass slides, thereby forming thin magnetic membranes of ca. 10 um thickness. Subsequent application of a homogeneous magnetic field results in the orientation of the magnetic clusters and their further motion into the matrix along the field lines forming layers of aligned chains. The study of the kinetics of alignment demonstrates that the chains are formed in the first hour of exposure to the magnetic field. Above all, a detailed microscopy study reveals that the dimensions and the periodicity of the microchains are effectively controlled by the intensity of the magnetic field, in good agreement with the theoretical simulations. This ability to form and manipulate the size and the distribution of chains into the polymeric matrix gives the opportunity to develop multifunctional composite materials ready to be used in various applications such as electromagnetic shielding, or multifunctional magnetic membranes etc. (literal)
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